Title:
PRODUCTION OF 4-ACRYLOXY-2-FORMYL-BUTENE COMPOUNDS
Document Type and Number:
Japanese Patent JP3967461
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for inexpensively and industrially advantageously producing the subject compound useful as an intermediate for synthesizing vitamin A and various perfume products at a low cost by reacting a specific hydroxytetrahydrofuran compound with formaldehyde in the presence of a carboxylic acid, etc., and then acylating the produced compound.
SOLUTION: This method for producing a 4-acryloxy-2-formyl-butene compound of formula III [R1 is H, a (substituted) aliphatic hydrocarbon or a (substituted) aromatic hydrocarbon] (for example, 4-acetoxy-2-formyl-butene) comprises reacting a hydroxytetrahydrofuran compound of formula I (R is H or methyl) (for example, 2-hydroxytetrahydrofuran) with formaldehyde in the presence of a carboxylic acid (for example, butyric acid) and a primary or secondary amine (for example, dibutylamine) at a temperature of, preferably, 50-150°C and at a pressure of, preferably, 1-3 atm to form a compound of formula II (for example, 2-formyl-4-hydroxy-1-butene), and then acrylating the obtained compound of formula II with acetic anhydride, etc.
Inventors:
Blacksmith Mansion Strong
Youichi Kido
Takashi Onishi
Youichi Kido
Takashi Onishi
Application Number:
JP15225498A
Publication Date:
August 29, 2007
Filing Date:
May 15, 1998
Export Citation:
Assignee:
KURARAY CO.,LTD.
International Classes:
B01J31/02; C07C67/08; B01J31/04; C07B61/00; C07C45/64; C07C45/70; C07C47/263; C07C67/14; C07C69/145; (IPC1-7): C07C69/145; B01J31/02; B01J31/04; C07C45/64; C07C45/70; C07C47/263; C07C67/08; C07C67/14; //C07B61/00
Domestic Patent References:
| JP6336456A | ||||
| JP5286877A | ||||
| JP51146413A |
Foreign References:
| EP0841332A1 | ||||
| US3661980 |
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