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GB1523816A - Preparation of (2,2-disubstituted vinyl)-y-butyrolactione - Google Patents

Preparation of (2,2-disubstituted vinyl)-y-butyrolactione

Info

Publication number
GB1523816A
GB1523816A GB3003676A GB3003676A GB1523816A GB 1523816 A GB1523816 A GB 1523816A GB 3003676 A GB3003676 A GB 3003676A GB 3003676 A GB3003676 A GB 3003676A GB 1523816 A GB1523816 A GB 1523816A
Authority
GB
United Kingdom
Prior art keywords
formula
compound
butyrolactione
preparation
lactones
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3003676A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cheminova AS
Original Assignee
Cheminova AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cheminova AS filed Critical Cheminova AS
Priority to GB3003676A priority Critical patent/GB1523816A/en
Priority to CH868277A priority patent/CH621547A5/en
Priority to NL7707830A priority patent/NL7707830A/en
Priority to ES460814A priority patent/ES460814A1/en
Priority to DE19772732455 priority patent/DE2732455A1/en
Priority to DE19772732456 priority patent/DE2732456A1/en
Priority to FR7722111A priority patent/FR2359133A1/en
Priority to JP8574277A priority patent/JPS5312850A/en
Priority to BE179465A priority patent/BE856943A/en
Priority to IT2587377A priority patent/IT1077412B/en
Publication of GB1523816A publication Critical patent/GB1523816A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/26—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
    • C07D307/30—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D307/32—Oxygen atoms
    • C07D307/33—Oxygen atoms in position 2, the oxygen atom being in its keto or unsubstituted enol form
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
    • C07D303/02—Compounds containing oxirane rings
    • C07D303/08—Compounds containing oxirane rings with hydrocarbon radicals, substituted by halogen atoms, nitro radicals or nitroso radicals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

The lactones of formula I, in which the symbols have the meaning given in Claim 1, are obtained by reacting an unsaturated alcohol of formula III with a compound of formula IV in which X1 and X2 are a halogen, in order to form a compound of formula V, which is treated with one equivalent of a base in order to convert it to an epoxide by departure of an HX2 molecule. The epoxide is finally converted to a compound of formula I by reaction with a dialkyl malonate in the presence of two equivalents of a base. The lactones of formula I are useful intermediates for the synthesis of pyrethroid insecticides. <IMAGE>
GB3003676A 1976-07-19 1976-07-19 Preparation of (2,2-disubstituted vinyl)-y-butyrolactione Expired GB1523816A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
GB3003676A GB1523816A (en) 1976-07-19 1976-07-19 Preparation of (2,2-disubstituted vinyl)-y-butyrolactione
CH868277A CH621547A5 (en) 1976-07-19 1977-07-13 Process for the preparation of a lactone
NL7707830A NL7707830A (en) 1976-07-19 1977-07-13 PREPARATION OF (2,2-DISUBSTITUENT VINYL) GAMMA BUTYROLACTONE.
ES460814A ES460814A1 (en) 1976-07-19 1977-07-16 Preparation of (2,2-disubstituted vinyl)-y-butyrolactione
DE19772732455 DE2732455A1 (en) 1976-07-19 1977-07-18 PROCESS FOR THE PREPARATION OF (2,2-DISUBSTITUTED VINYL) -GAMMA-BUTYROLACTONES
DE19772732456 DE2732456A1 (en) 1976-07-19 1977-07-18 METHOD FOR MANUFACTURING CHRYSANTHEMIC ACID ESTERS AND HOMOLOGOUS THEREOF
FR7722111A FR2359133A1 (en) 1976-07-19 1977-07-19 PROCESS FOR THE PREPARATION OF (2,2-DISUBSTITUTE VINYL) -G-BUTYROLACTONES
JP8574277A JPS5312850A (en) 1976-07-19 1977-07-19 Preparation of *2*22disubstituted vinyl** gammaabutylolactone
BE179465A BE856943A (en) 1976-07-19 1977-07-19 BUTYROLACTONS
IT2587377A IT1077412B (en) 1976-07-19 1977-07-19 PROCEDURE FOR PREPARING Y-BUTYRROLATTONI- (VINYL-2,2-BISUBSTITUTED)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3003676A GB1523816A (en) 1976-07-19 1976-07-19 Preparation of (2,2-disubstituted vinyl)-y-butyrolactione

Publications (1)

Publication Number Publication Date
GB1523816A true GB1523816A (en) 1978-09-06

Family

ID=10301240

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3003676A Expired GB1523816A (en) 1976-07-19 1976-07-19 Preparation of (2,2-disubstituted vinyl)-y-butyrolactione

Country Status (9)

Country Link
JP (1) JPS5312850A (en)
BE (1) BE856943A (en)
CH (1) CH621547A5 (en)
DE (2) DE2732455A1 (en)
ES (1) ES460814A1 (en)
FR (1) FR2359133A1 (en)
GB (1) GB1523816A (en)
IT (1) IT1077412B (en)
NL (1) NL7707830A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1078770B (en) * 1976-01-21 1985-05-08 Cheminova As PROCEDURE TO PRODUCE (VINYL-2,2-BISUBSTITUTED) RANGE-BUTYRON-BRICKS AND PRODUCTS OBTAINED
DE2710151A1 (en) * 1977-03-09 1978-09-14 Bayer Ag PROCESS FOR THE PREPARATION OF DIHALOGENVINYL-GAMMA-BUTYROLACTONES
DE2747824A1 (en) * 1977-10-26 1979-05-03 Bayer Ag PROCESS FOR THE PREPARATION OF HALOGENVINYL GAMMA BUTYROLACTONE
JPS55105572A (en) * 1979-02-07 1980-08-13 Fujitsu Ltd Printing mechanism
FR2486522A1 (en) * 1980-07-08 1982-01-15 Ugine Kuhlmann PROCESS FOR THE PREPARATION OF POLYFLUOROALKYL CHAIN IODO ALCOHOLS

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL275929A (en) *
FR2110782A5 (en) * 1970-10-30 1972-06-02 Roure Bertrand Dupont Sa
IT1078770B (en) * 1976-01-21 1985-05-08 Cheminova As PROCEDURE TO PRODUCE (VINYL-2,2-BISUBSTITUTED) RANGE-BUTYRON-BRICKS AND PRODUCTS OBTAINED
GB1503857A (en) * 1976-05-25 1978-03-15 Cheminova As Production of chrysanthemic acid esters and homologues thereof
DE2710151A1 (en) * 1977-03-09 1978-09-14 Bayer Ag PROCESS FOR THE PREPARATION OF DIHALOGENVINYL-GAMMA-BUTYROLACTONES

Also Published As

Publication number Publication date
CH621547A5 (en) 1981-02-13
NL7707830A (en) 1978-01-23
BE856943A (en) 1977-11-14
ES460814A1 (en) 1978-04-16
IT1077412B (en) 1985-05-04
FR2359133A1 (en) 1978-02-17
JPS5312850A (en) 1978-02-04
DE2732456A1 (en) 1978-01-26
DE2732455A1 (en) 1978-01-26

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee