CN117617262A - Quick-burning mosquito-repellent incense and preparation method thereof - Google Patents

Abstract

The invention discloses a quick-combustion mosquito-repellent incense and a preparation method thereof, wherein the quick-combustion mosquito-repellent incense comprises, by weight, 0.03% -0.5% of a component A, 0.5% -8% of a component B, 50% -95% of a combustion improver, 2% -35% of an adhesive and 0.01% -10% of other auxiliary agents. The incense is prepared and is ignited for 10 to 30 minutes, the effect lasts for 24 hours, the use efficiency is higher, and the mosquito repelling effect is obvious. The component A is a compound shown in a formula (I); the component B is a solvent.

Description

A kind of quick-burning mosquito repellent incense and preparation method thereof

Technical field

The invention relates to a mosquito repellent incense, specifically to a quick-burning mosquito repellent incense and a preparation method thereof. It only takes 10 to 30 minutes to complete the entire burning process and can achieve a mosquito repellent effect of up to 24 hours.

Background technique

The pyrethroid compound represented by formula I is a novel sanitary insecticide with good basic activity in preventing and controlling sanitary pests; the pyrethroid compound represented by formula I can be prepared according to the following reaction route:

Where R is methyl or ethyl, M is sodium or potassium and R1 is hydrogen.

For example, 3-formyl-2,2-dimethylcyclopropanecarboxylic acid methyl ester (CAS No. 62138-41-4) is used as the starting material, and acetonitrile undergoes a condensation reaction under the action of sodium ethoxide at 60°C for 4 hours. , add enene hydrochloric acid to neutralize the pH to 8, add ethyl acetate and water to separate, and desolubilize the oil layer to obtain the intermediate 3-(2-cyano-1-vinyl)-2,2-dimethylcyclopropanecarboxylic acid methyl ester.

Add 2,3,5,6-tetrafluorobenzyl alcohol (CAS No. 4084-38) to the obtained methyl 3-(2-cyano-1-vinyl)-2,2-dimethylcyclopropanecarboxylate. -2), use catalytic amounts of tetraisopropyl titanate and toluene solvent, slowly heat up to reflux to extract the by-product methanol, and control the gas phase. After the raw materials are completely converted, cool down to 0-5°C, add a small amount of water dropwise, and separate. liquid and desolvated to obtain the pyrethroid compound of formula I.

Using cyclopropanecarboxylic acid esters of different single configurations as starting materials, pyrethroid compounds of formula I with corresponding configurations can be obtained, for example, (1R,3R)-3-formyl-2,2-dimethyl Methyl cyclopropanecarboxylate (CAS No. 27335-33-7) is used as the starting raw material for synthesis. What is obtained is the 1R and 3R products of the chrysanthemic acid part. Distribution crystallization is then carried out to separate the double bond CN group Z and E isomers. A single 2,3,4,5-tetrafluorobenzyl-(1R,3R)-3-[(1Z)-2-cyano-1-vinyl]-2,2-dimethylcyclopropane can be obtained carboxylate or 2,3,4,5-tetrafluorobenzyl-(1R,3R)-3-[(1E)-2-cyano-1-vinyl]-2,2-dimethylcyclo Propyl carboxylate. Using (1R,3S)-3-formyl-2,2-dimethylcyclopropanecarboxylic acid methyl ester (CAS No. 55701-02-5), 2,3,4,5-tetrafluorobenzyl- (1R,3S)-3-(-2-cyano-1-vinyl)-2,2-dimethylcyclopropylcarboxylate or 2,3,4,5-tetrafluorobenzyl-(1R , 3S)-3-[(1Z)-2-cyano-1-vinyl]-2,2-dimethylcyclopropylcarboxylate or 2,3,4,5-tetrafluorobenzyl-( 1R,3S)-3-[(1E)-2-cyano-1-vinyl]-2,2-dimethylcyclopropylcarboxylate.

The disc-type mosquito coils currently on the market need to burn for about 8 hours. If burned for a long time, larger smoke and odor will appear, which not only brings people an unpleasant product use experience, but also creates long-term fire hazards. In order to improve the shortcomings of traditional mosquito repellent incense and improve the user experience, the present invention provides a quick-burning mosquito repellent incense that releases active ingredients in a short time to achieve a mosquito repellent effect. This raises the requirements for the safety of active ingredients, so this product prefers the compound of formula I. The acute oral toxicity of the compound of formula I is rated as slightly toxic, and its safety is better than that of perfluthrin and dextrotrans-rich on the market. Products with active ingredients such as allethrin are more suitable for the preparation of fast-burning mosquito repellent incense. In addition, this product has a small weight and fast burning. At the same time, it greatly reduces the use of solvents. It has obvious carbon reduction effect and long lasting effect.

Contents of the invention

The technical problem to be solved by the present invention is to provide a quick-burning mosquito repellent incense and a preparation method thereof in view of the deficiencies in the prior art. The mosquito repellent incense of the present invention can burn completely in a short time.

In order to achieve the above objects, the present invention adopts the following technical solutions:

A quick-burning mosquito repellent incense, by weight, contains 0.03%-0.5% component A, 0.5%-8% component B, 50%-95% combustion accelerant, 2%-35% binder, 0.01 %~10% other additives;

The component A is a compound represented by formula (I), namely 2,3,4,5-tetrafluorobenzyl-3-[-2-cyano-1-vinyl]-2,2-di Methylcyclopropylcarboxylate;

The component B is a solvent;

In the above technical solution, the component A shown is preferably from 2,3,4,5-tetrafluorobenzyl-(1R,3S)-3-[(1Z)-2-cyano-1-vinyl] -2,2-Dimethylcyclopropylcarboxylate, 2,3,4,5-tetrafluorobenzyl-(1S,3R)-3-[(1Z)-2-cyano-1-vinyl ]-2,2-Dimethylcyclopropylcarboxylate, 2,3,4,5-tetrafluorobenzyl-(1R,3R)-3-[(1Z)-2-cyano-1-ethylene [(1Z)-2-cyano-1- A mixture of any one or two or more of the four isomers of vinyl]-2,2-dimethylcyclopropylcarboxylate in any proportion.

In the above technical solution, the component A is further preferably 2,3,4,5-tetrafluorobenzyl-(1R,3S)-3-[(1Z)-2-cyano-1-vinyl ]-2,2-dimethylcyclopropylcarboxylate.

In the above technical solution, the component B is selected from the group consisting of amide solvents, monocarboxylic acid ester solvents, tricarboxylic acid ester solvents, alcohol ether solvents, C8-20 alkane solvents; water; dodecane Benzene, dedecylbenzene; C2-8 alcohol solvents; propylene carbonate, butylene carbonate, sorbitan monooleate, fatty alcohol and ethylene oxide condensate, γ-butyrolactone, ethyl Any one or two or more of alkyl ethoxy esters, dipropylene glycol methyl ether acetate, compounds represented by formula (II), compounds represented by formula (III), compounds represented by formula (IV), and any A mixture of proportions;

Wherein R ₁ , R ₂ and R ₃ are all C1-C10 alkyl groups.

In the above technical solution, the amide solvent is preferably N,N-dimethylsulfonamide.

In the above technical solution, the monocarboxylic acid ester solvent is preferably selected from the group consisting of methyl oleate, isopropyl tridecanoate, isopropyl myristate, isopropyl hexadecanoate, isopropyl phenylacetate, and benzene. Any one or a mixture of two or more of ethyl acetate and n-butyl myristate in any proportion.

In the above technical solution, the tricarboxylic acid ester solvent is preferably a dicarboxylic acid ester solvent such as diisopropyl glutarate, diisopropyl adipate, diisobutyl adipate; Any one of tributyl citrate and acetyl tributyl citrate or a mixture of two or more in any proportion.

In the above technical solution, the alcohol ether solvent is preferably made from any one or two or more of triethylene glycol monobutyl ether, diethylene glycol monobutyl ether, and propylene glycol methyl ether in any proportion. mixture.

In the above technical solution, the C8-20 alkane solvent is preferably D60 (ExxonMobil Petrochemical Company), D80 (ExxonMobil Petrochemical Company), or D100 (ExxonMobil Petrochemical Company) , D110 (ExxonMobil Petrochemical Company), D130 (ExxonMobil Petrochemical Company), Isopar-E (ExxonMobil Petrochemical Company), Isopar-G (ExxonMobil Petrochemical Company), Isopar -H (ExxonMobil Petrochemical Company), Isopar-L (ExxonMobil Petrochemical Company), Isopar-M (ExxonMobil Petrochemical Company), octane, nonane, quinane, undecane A mixture of any one, two or more of alkane, dodecane, tridecane, tetradecane, pentadecane and hexadecane in any proportion.

In the above technical solution, the C2-8 alcohol solvent is preferably ethanol, isopropanol, n-propanol, n-butanol, sec-butanol, tert-butanol, n-amyl alcohol and its isomers, n-hexyl alcohol. A mixture of any one, two or more of alcohol and its isomers, n-heptanol and its isomers, n-octanol and its isomers in any proportion.

In the above technical solution, the combustion accelerant is selected from dry plant powder and/or charcoal powder; the dry plant powder is preferably selected from wood powder, Asteraceae plant powder, Apiaceae plant powder, Moraceae plant powder, Oleaceae plant powder. Any one or a mixture of two or more plant powders, Perillaceae plant powders, Lonicerae plant powders, Oryzae plant powders in any proportion; the carbon powder is preferably selected from charcoal, activated carbon, coal, Any one or a mixture of two or more carbon blacks in any proportion.

In the above technical solution, the adhesive is preferably selected from the group consisting of sodium carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, gum arabic, sodium alginate, corn starch, tarcloth flour, and polyacrylamide , sodium polyacrylate, polyethylene oxide, or a mixture of two or more in any proportion.

In the above technical solution, the other auxiliaries include spices, dyes and preservatives.

In the above technical solution, the fragrance is selected from essential oils and/or plant extracts; the essential oil is preferably selected from any one of rose oil, lavender oil, and sweet orange oil, or two or more are mixed in any proportion. The plant extract is preferably a mixture of any one, two or more of osmanthus extract, jasmine extract, and tuberose extract in any proportion.

In the above technical solution, the dye is selected from any one of different color systems.

In the above technical solution, the preservative is selected from any one of sodium benzoate, sodium dehydroacetate, potassium sorbate, niplatin methyl ester or kason, or a mixture of two or more in any proportion.

The present invention also provides a method for preparing the above-mentioned quick-burning mosquito repellent incense. The combustion accelerant, adhesive and other auxiliaries are mixed evenly according to the stated proportion, then water is added and kneaded into shape, and then dried to form an incense base material. Then, Component A and Component B in the stated ratio are mixed at room temperature (or heated to below the boiling point of the solvent) until clarified, and finally sprayed onto the incense base material to prepare the quick-burning mosquito repellent incense.

In the above technical solution, the weight of the incense base material is 1-10g, and the shape is fan-shaped, rhombus, triangle, oval, irregular shape, etc.

Compared with existing technology, it has the following characteristics:

The quick-burning mosquito repellent incense of the present invention can complete the entire burning process in only 10 to 30 minutes, and can achieve a mosquito repelling effect of up to 24 hours after burning.

Detailed ways

Specific embodiments of the technical solution of the present invention are described in detail below, but the present invention is not limited to the following description:

The preparation method of the quick-burning mosquito repellent incense in each embodiment of the present invention is as follows: mix the combustion accelerant, adhesive, and other auxiliaries in proportion, add water and knead them into shape, and then dry them to form the incense base material. The proportions of components A and B are mixed at room temperature (or heated below the boiling point of the solvent) until clarified, and then sprayed onto the above substrate to prepare a quick-burning mosquito repellent incense.

The present invention is described below in conjunction with specific examples:

Preparation Example 1: (0.03% mosquito repellent incense with compound of formula I, total weight 10g)

1.5g 2,3,4,5-tetrafluorobenzyl-3-[(1Z)-2-cyano-1-vinyl]-2,2-dimethylcyclopropylcarboxylate ((1R,3S ), (1S, 3R), (1R, 3R), (1S, 3S) four isomers each account for 25%), isopropyl myristate is added to 100g to obtain 1.5% mother liquor;

Add water to a mixture of 1.5g corn starch, 3.5g activated carbon powder, 4.5g moraceae plant powder, 0.1g osmanthus extract, 0.1g sodium benzoate, and 0.1g blue dye, knead it into shape, and then dry it to form an incense base material ;

Take 0.2g of the above mother liquor and spray it onto the above incense base material.

Preparation Example 2: (0.05% mosquito repellent incense with compound of formula I, total weight 6g)

1.5g 2,3,4,5-Tetrafluorobenzyl-(1R,3S)-3-[(1Z)-2-cyano-1-vinyl]-2,2-dimethylcyclopropylcarboxylic acid Ester, isopropyl myristate was added to 100g to obtain 1.5% mother liquor;

Add water to a mixture of 0.5g tabu powder, 2g charcoal powder, 3g Asteraceae plant powder, 0.1g osmanthus extract, 0.1g sodium benzoate, and 0.1g blue dye, knead it into shape, and then dry it to form an incense base material;

Take 0.2g of the above mother liquor and spray it onto the above incense base material.

Formulation Example 3: (0.06% 2,3,4,5-tetrafluorobenzyl-(1R,3S)-3-[(1Z)-2-cyano-1-vinyl]-2,2-di Methylcyclopropylcarboxylate mosquito repellent incense, total weight 4g)

1.2g 2,3,4,5-tetrafluorobenzyl-(1R,3S)-3-[(1Z)-2-cyano-1-vinyl]-2,2-dimethylcyclopropylcarboxylic acid Ester, isopropyl myristate was added to 100g to obtain 1.2% mother liquor;

Add water to a mixture of 0.3g sodium carboxymethylcellulose, 1.4g charcoal powder, 1.8g rice plant powder, 0.1g osmanthus extract, 0.1g sodium benzoate, and 0.1g green dye, knead it into shape, and then dry it to form a smoked mixture. Fragrance base material;

Take 0.2g of the above mother liquor and spray it onto the above incense base material.

Formulation Example 4: (0.08% 2,3,4,5-tetrafluorobenzyl-(1R,3S)-3-[(1Z)-2-cyano-1-vinyl]-2,2-di Methylcyclopropylcarboxylate mosquito repellent incense, total weight 5g)

2g 2,3,4,5-Tetrafluorobenzyl-(1R,3S)-3-[(1Z)-2-cyano-1-vinyl]-2,2-dimethylcyclopropylcarboxylate , make up isopropyl myristate to 100g to obtain 2% mother liquor;

Add water to a mixture of 0.5g tabu powder, 1.5g carbon black powder, 2.5g apiaceae plant powder, 0.1g lavender oil, 0.1g sodium benzoate, and 0.1g blue dye, knead it into shape, and then dry it to form an incense base. material;

Take 0.2g of the above mother liquor and spray it onto the above incense base material.

Formulation Example 5: (0.09% 2,3,4,5-tetrafluorobenzyl-(1R,3S)-3-[(1Z)-2-cyano-1-vinyl]-2,2-di Methylcyclopropylcarboxylate mosquito repellent incense, total weight 5g)

2.25g 2,3,4,5-tetrafluorobenzyl-(1R,3S)-3-[(1Z)-2-cyano-1-vinyl]-2,2-dimethylcyclopropylcarboxylic acid Ester, isopropyl myristate was added to 100g to obtain 2.25% mother liquor;

Add water to a mixture of 0.5g gum arabic, 2g charcoal powder, 2g Asteraceae plant powder, 0.1g lavender oil, 0.1g sodium benzoate, and 0.1g blue dye, knead it into shape, and then dry it to form an incense base material;

Take 0.2g of the above mother liquor and spray it onto the above incense base material.

Formulation Example 6: (0.1% 2,3,4,5-tetrafluorobenzyl-(1R,3S)-3-[(1Z)-2-cyano-1-vinyl]-2,2-di Methylcyclopropylcarboxylate mosquito repellent incense, total weight 5g)

2.5g 2,3,4,5-tetrafluorobenzyl-(1R,3S)-3-[(1Z)-2-cyano-1-vinyl]-2,2-dimethylcyclopropylcarboxylic acid Ester, isopropyl myristate was added to 100g to obtain 2.5% mother liquor;

Add water to a mixture of 0.5g gum arabic, 1.5g carbon black powder, 2.5g rice plant powder, 0.1g osmanthus extract, 0.1g sodium benzoate, and 0.1g green dye, knead it into shape, and then dry it to form an incense base material ;

Take 0.2g of the above mother liquor and spray it onto the above incense base material.

Formulation Example 7: (0.15% 2,3,4,5-tetrafluorobenzyl-(1R,3S)-3-[(1Z)-2-cyano-1-vinyl]-2,2-di Methylcyclopropylcarboxylate mosquito repellent incense, total weight 5g)

3.75g 2,3,4,5-tetrafluorobenzyl-(1R,3S)-3-[(1Z)-2-cyano-1-vinyl]-2,2-dimethylcyclopropylcarboxylic acid Ester, isopropyl myristate was added to 100g to obtain 3.75% mother liquor;

Add water to a mixture of 0.5g gum arabic, 2g charcoal powder, 2g Asteraceae plant powder, 0.1g osmanthus extract, 0.1g sodium benzoate, and 0.1g blue dye, knead it into shape, and then dry it to form an incense base material;

Take 0.2g of the above mother liquor and spray it onto the above incense base material.

Formulation Example 8: (0.2% 2,3,4,5-tetrafluorobenzyl-(1R,3S)-3-[(1Z)-2-cyano-1-vinyl]-2,2-di Methylcyclopropylcarboxylate mosquito repellent incense, total weight 5g)

5g 2,3,4,5-tetrafluorobenzyl-(1R,3S)-3-[(1Z)-2-cyano-1-vinyl]-2,2-dimethylcyclopropylcarboxylate , make up isopropyl myristate to 100g to obtain 5% mother liquor;

Add water to a mixture of 0.5g corn starch, 1.5g activated carbon powder, 2.5g rice plant powder, 0.1g jasmine extract, 0.1g sodium benzoate, and 0.1g blue dye, knead it into shape, and then dry it to form an incense base material ;

Take 0.2g of the above mother liquor and spray it onto the above incense base material.

Formulation Example 9: (0.4% 2,3,4,5-tetrafluorobenzyl-(1R,3S)-3-[(1Z)-2-cyano-1-vinyl]-2,2-di Methylcyclopropylcarboxylate mosquito repellent incense, total weight 5g)

10g 2,3,4,5-Tetrafluorobenzyl-(1R,3S)-3-[(1Z)-2-cyano-1-vinyl]-2,2-dimethylcyclopropylcarboxylate , make up isopropyl myristate to 100g to obtain 10% mother liquor;

Add water to a mixture of 0.5g corn starch, 1.5g activated carbon powder, 2.5g rice plant powder, 0.1g jasmine extract, 0.1g sodium benzoate, and 0.1g brown dye, knead it into shape, and then dry it to form an incense base material;

Take 0.2g of the above mother liquor and spray it onto the above incense base material.

Formulation Example 10: (0.5% 2,3,4,5-tetrafluorobenzyl-(1R,3S)-3-[(1Z)-2-cyano-1-vinyl]-2,2-di Methylcyclopropylcarboxylate mosquito repellent incense, total weight 5g)

12.5g 2,3,4,5-tetrafluorobenzyl-(1R,3S)-3-[(1Z)-2-cyano-1-vinyl]-2,2-dimethylcyclopropylcarboxylic acid Ester, isopropyl myristate was added to 100g to obtain 12.5% mother liquor;

Add water to a mixture of 0.5g gum arabic, 2g wood charcoal powder, 2g celery plant powder, 0.1g osmanthus extract, 0.1g sodium benzoate, and 0.1g blue dye and knead it into shape, and then dry it to form an incense base material;

Take 0.2g of the above mother liquor and spray it onto the above incense base material.

Formulation Example 11: (0.5% 2,3,4,5-tetrafluorobenzyl-3-[-2-cyano-1-vinyl]-2,2-dimethylcyclopropylcarboxylate flooding Mosquito Incense, total weight 5g)

12.5g 2,3,4,5-Tetrafluorobenzyl-3-[-2-cyano-1-vinyl]-2,2-dimethylcyclopropylcarboxylate, supplemented by isopropyl myristate to 100g to obtain 12.5% mother liquor;

Add water to a mixture of 0.5g gum arabic, 2g wood charcoal powder, 2g celery plant powder, 0.1g osmanthus extract, 0.1g sodium benzoate, and 0.1g blue dye and knead it into shape, and then dry it to form an incense base material;

Take 0.2g of the above mother liquor and spray it onto the above incense base material.

Comparative Example 1: Commercially available 0.03% permethrin disc mosquito coil

Test Example 1:

The effectiveness of fast-burning mosquito coils was compared in accordance with "GBT 13917.4-2009 Indoor Efficacy Test and Evaluation of Sanitary Insecticides for Pesticide Registration Part 4: Mosquito Repellents". Use cylinder device. Take 30 test mosquitoes, put them into the central round hole of the original plate (F) at the bottom of the tube, and tighten the rubber stopper (H). After the test mosquito returns to normal activities, randomly take a section of the mosquito coil to be tested, place it horizontally on the mosquito coil rack, pre-light it in another place for 5 minutes, then move it to the cylinder to smoke for 1 minute, immediately remove the mosquito coil and put a rubber stopper on it. (H), and time, and record the number of test insects knocked down at certain intervals. The observation time limit is 20 minutes. The test should be repeated three or more times, and the mosquito coils used for repeated tests should be randomly selected. After each test, the test device should be cleaned. The test results are shown in the table below:

mosquito coils Concentration w/w Culex pipiens KT50(min) Formulation Example 1 0.03 3′16″ Formulation Example 2 0.05 3′45″ Formulation Example 3 0.06 2′53″ Formulation Example 4 0.08 2′36″ Formulation Example 5 0.09 2′27″ Formulation Example 6 0.1 2′23″ Formulation Example 7 0.15 2′19″ Formulation Example 8 0.2 2′05″ Formulation Example 9 0.4 1′44″ Formulation Example 10 0.5 1′37″ Formulation Example 11 0.5 2′05″ Comparative Example 1 0.03 4′36″

Test Example 2:

Referring to "GB/T 13917.10-2009 Indoor Efficacy Test and Evaluation of Sanitary Pesticides for Pesticide Registration Part 10: Simulation Site", place the mosquito coil samples in the center of the floor of the simulation room, and place them at 8h, 16h, and 24h after ignition. Put in 100 test mosquitoes each and time it. Record the number of test mosquitoes knocked down at certain intervals. The observation time limit is 1h. The test should be repeated three or more times, and the mosquito coils used for repeated tests should be randomly selected. After each test, the test device should be cleaned. The test results are shown in the table below:

The above examples are only for illustrating the technical concept and technical features of the present invention, and are not intended to limit the scope of the present invention. All equivalent transformations or modifications made based on the essence of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The quick-combustion mosquito-repellent incense is characterized by comprising, by weight, 0.03% -0.5% of a component A, 0.5% -8% of a component B, 50% -95% of a combustion improver, 2% -35% of an adhesive and 0.01% -10% of other auxiliary agents;

the component A is a compound shown in a formula (I), namely 2,3,4, 5-tetrafluorobenzyl-3- [ -2-cyano-1-vinyl ] -2, 2-dimethylcyclopropylcarboxylate;

the component B is a solvent;

2. the quick-fire mosquito repellent incense according to claim 1, wherein component a is preferably a mixture of any one or more of the four isomers of 2,3,4, 5-tetrafluorobenzyl- (1 r,3 s) -3- [ (1Z) -2-cyano-1-vinyl ] -2, 2-dimethylcyclopropylcarboxylate, 2,3,4, 5-tetrafluorobenzyl- (1 s,3 r) -3- [ (1Z) -2-cyano-1-vinyl ] -2, 2-dimethylcyclopropylcarboxylate, 2,3,4, 5-tetrafluorobenzyl- (1 r,3 r) -3- [ (1Z) -2-cyano-1-vinyl ] -2, 2-dimethylcyclopropylcarboxylate, 2,3,4, 5-tetrafluorobenzyl- (1 s,3 s) -3- [ (1Z) -2-cyano-1-vinyl ] -2, 2-dimethylcyclopropylcarboxylate.

3. The rapid-fire mosquito repellent incense of claim 1, wherein component B is selected from the group consisting of amide solvents, monocarboxylic acid ester solvents, tricarboxylic acid ester solvents, alcohol ether solvents, C8-20 alkane solvents; water; dodecylbenzene, decadecylbenzene; alcohol solvents of C2-8; any one or a mixture of two or more of propylene carbonate, butylene carbonate, sorbitan monooleate, a condensate of fatty alcohol and ethylene oxide, gamma-butyrolactone, ethylene ethoxy ester, dipropylene glycol methyl ether acetate, a compound shown in a formula (II), a compound shown in a formula (III) and a compound shown in a formula (IV) in any proportion;

wherein R is ₁ 、R ₂ And R is ₃ Are all C1-C10 alkyl groups.

4. The quick-fire mosquito repellent incense according to claim 1, wherein the combustion improver is selected from plant dry powder and/or carbon powder; the plant dry powder is selected from one or more of wood powder, compositae plant powder, apiaceae plant powder, moraceae plant powder, oleaceae plant powder, perillae plant powder, caprifoliaceae plant powder, and Oryza sativa plant powder at random ratio; the carbon powder is selected from one or a mixture of two or more of charcoal, activated carbon, coal and carbon black.

5. The rapid-fire mosquito repellent incense according to claim 1, wherein the binder is preferably a mixture of two or more of sodium carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, gum arabic, sodium alginate, corn starch, tarpaulin powder, polyacrylamide, sodium polyacrylate, and polyethylene oxide in any ratio.

6. The rapid-fire mosquito repellent incense of claim 1 wherein the other adjuvants include fragrances, dyes, preservatives.

7. A method for preparing the quick-combustion mosquito-repellent incense according to any one of claims 1 to 6, which is characterized in that combustion improver, adhesive and other auxiliary agents are uniformly mixed according to the proportion, then water is added, kneading is carried out, then the mixture is dried to form an incense base material, then the component A and the component B according to the proportion are mixed to be clear at room temperature or under the condition of heating to the temperature below the boiling point of a solvent, and finally the mixture is sprayed on the incense base material to prepare the quick-combustion mosquito-repellent incense.

8. The method according to claim 7, wherein the incense base material has a weight of 1-10g and a shape of a sector, a diamond, a triangle, an ellipse, or an irregular shape.