FR2342266A1 - Prepn. of acetals of halo-ethylenic aldehydes - by cationic halogenation of enoxy silanes and treatment with an alcohol - Google Patents
Prepn. of acetals of halo-ethylenic aldehydes - by cationic halogenation of enoxy silanes and treatment with an alcoholInfo
- Publication number
- FR2342266A1 FR2342266A1 FR7605242A FR7605242A FR2342266A1 FR 2342266 A1 FR2342266 A1 FR 2342266A1 FR 7605242 A FR7605242 A FR 7605242A FR 7605242 A FR7605242 A FR 7605242A FR 2342266 A1 FR2342266 A1 FR 2342266A1
- Authority
- FR
- France
- Prior art keywords
- alkyl
- prepn
- acetals
- halo
- alcohol
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/48—Preparation of compounds having groups
- C07C41/50—Preparation of compounds having groups by reactions producing groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
Abstract
The acetals of halo ethylenic aldehydes of formula (I) are prepd. from an enoxysilane (II) by treatment with cationic halogen, Cl+, Br+ or I+, followed by a prim. or sec. alcohol or a glycol. (where R1 - R5 = H, 1-6C alkyl, or 3 -6C alkenyl not having the double in position 1-2; n = 0.4; R6 = 1-6C alkyl or the two groups R6 form a chain -R6- where R'6-where R'6 = 2-6C alkenylene opt. substd. by OH, 1-4C alkoxy; X = Cl, Br, or I; A is of formula (III); R = 1-12C alkyl, 3-6C cycloalkyl, phenyl, 1-6C alkyl phenyl, or phenyl 1-6C alkyl; R' = R or is a group. (I) are intermediates for organic syntheses, esp. for prepn. of retinal (Vit A aldehyde).
Priority Applications (14)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7605242A FR2342266A1 (en) | 1976-02-25 | 1976-02-25 | Prepn. of acetals of halo-ethylenic aldehydes - by cationic halogenation of enoxy silanes and treatment with an alcohol |
NLAANVRAGE7701704,A NL175906C (en) | 1976-02-25 | 1977-02-17 | PROCESS FOR PREPARING HALOGEN ACETALS OF ALKETIC UNSATURATED ALDEHYDES |
US05/771,313 US4087465A (en) | 1976-02-25 | 1977-02-23 | Process for the preparation of halogeno-acetals from enoxysilanes |
JP1823877A JPS52102213A (en) | 1976-02-25 | 1977-02-23 | Method of producing halogenoacetal from enoxy silane |
DD7700197546A DD128421A5 (en) | 1976-02-25 | 1977-02-24 | METHOD FOR PRODUCING HALOGEN ACETALES FROM ENOXYSILANES |
GB7895/77A GB1521436A (en) | 1976-02-25 | 1977-02-24 | Process for the preparation of halogeno-acetals from enoxysilanes |
BE175223A BE851780A (en) | 1976-02-25 | 1977-02-24 | PROCESS FOR PREPARING HALOGENOCETALS FROM ENOXY-SILANES |
HU77RO918A HU178085B (en) | 1976-02-25 | 1977-02-24 | Process for producing halogenoacetales of ethylenaldehydes from enoxysilanes |
SE7702069A SE436867B (en) | 1976-02-25 | 1977-02-24 | PROCEDURE FOR THE PREPARATION OF HALOGENE ACETALS FROM ENOXISILANES |
CH232177A CH616137A5 (en) | 1976-02-25 | 1977-02-24 | |
CA272,561A CA1072970A (en) | 1976-02-25 | 1977-02-24 | Process for the preparation of acetal halides from enoxysilanes |
DE2708281A DE2708281C2 (en) | 1976-02-25 | 1977-02-25 | Process for the production of halogen acetals from enoxysilanes |
IT20717/77A IT1085865B (en) | 1976-02-25 | 1977-02-25 | PROCEDURE TO PREPARE HALOGEN-ACETALS STARTING FROM ENOXYLISONS |
SU772455509A SU847912A3 (en) | 1976-02-25 | 1977-02-25 | Method of preparing halogen acetals of ethylene aldehydes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7605242A FR2342266A1 (en) | 1976-02-25 | 1976-02-25 | Prepn. of acetals of halo-ethylenic aldehydes - by cationic halogenation of enoxy silanes and treatment with an alcohol |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2342266A1 true FR2342266A1 (en) | 1977-09-23 |
FR2342266B1 FR2342266B1 (en) | 1979-05-18 |
Family
ID=9169585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7605242A Granted FR2342266A1 (en) | 1976-02-25 | 1976-02-25 | Prepn. of acetals of halo-ethylenic aldehydes - by cationic halogenation of enoxy silanes and treatment with an alcohol |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE851780A (en) |
FR (1) | FR2342266A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2518534A1 (en) * | 1981-12-18 | 1983-06-24 | Rhone Poulenc Sante | PROCESS FOR THE PREPARATION OF ETHYLENE HALOGENOACETALS |
-
1976
- 1976-02-25 FR FR7605242A patent/FR2342266A1/en active Granted
-
1977
- 1977-02-24 BE BE175223A patent/BE851780A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
BE851780A (en) | 1977-08-24 |
FR2342266B1 (en) | 1979-05-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |