Title:
PRODUCTION OF GAMMA,DELTA-UNSATURATED ALCOHOL
Document Type and Number:
Japanese Patent JP3563105
Kind Code:
B2
Abstract:
PURPOSE: To produce a γ,δ-unsaturated alcohol in high formaldehyde conversion and high selectivity and yield because of the suppressed by-production of alkyl- m-dioxanes by reacting an α-olefin with an aqueous solution of formaldehyde in the presence of a specific solvent.
CONSTITUTION: This γ,δ-unsaturated alcohol of formula II is produced by reacting an α-olefin of formula I (R1 to R3 each is H, a 1-10C alkyl, etc.) with an aqueous solution of formaldehyde using 2-20mol (based on 1mol of the formal dehyde in the formaldehyde solution) of a 3-10C alcohol (preferably isopropyl alcohol, etc.) as a solvent at a reaction temperature of 150-350°C, preferably 200-330°C. Concretely, 3-methyl-3-buten-1-ol is produced as the compound of formula II by using isobutene as the compound of formula I. The formaldehyde concentration of the formaldehyde solution is preferably 30-70% and the reaction pressure is preferably 50-300kg/cm2.
Inventors:
Katsushi Ryuta
Noriaki Yoshimura
Noriaki Yoshimura
Application Number:
JP7844594A
Publication Date:
September 08, 2004
Filing Date:
April 18, 1994
Export Citation:
Assignee:
KURARAY CO.,LTD.
International Classes:
C07C29/38; C07C33/025; (IPC1-7): C07C33/025; C07C29/38
Domestic Patent References:
| JP7309794A | ||||
| JP58164534A | ||||
| JP55113732A | ||||
| JP51108006A | ||||
| JP51070708A | ||||
| JP51039616A | ||||
| JP50111003A | ||||
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| JP47051322B1 |