Title:
METHOD FOR PRODUCING 3,4-DICHLORO-1-BUTENE
Document Type and Number:
WIPO Patent Application WO/2020/054568
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a safe and economical method for producing 3,4-dichloro-1-butene by achieving an isomerization reaction of 1,4-dichloro-2-butene at low temperature in a small amount of time. The present invention pertains to a method for producing 3,4-dichloro-1-butene by an isomerization reaction of 1,4-dichloro-2-butene in the presence of trialkylamine, a monovalent copper halide, and at least one compound selected from among an ether compound represented by general formula R1-O-R2 (R1 and R2 each independently represent a C1-5 alkyl group, a C3-6 cyclic alkyl group, a C2-5 alkoxyalkyl group, or a C1-5 hydroxyalkyl group) and an ester compound represented by general formula R3-COO-R4 (R3 and R4 each independently represent a C1-4 alkyl group), wherein the total addition amount of the at least one compound selected from among the ether compound and the ester compound is 0.2-0.9 mol with respect to 1 mol of the monovalent copper halide.
Inventors:
IWASAKI FUMIHIKO (JP)
SEKIOKA NAOKI (JP)
KAMIJO MASANAO (JP)
SEKIOKA NAOKI (JP)
KAMIJO MASANAO (JP)
Application Number:
PCT/JP2019/034945
Publication Date:
March 19, 2020
Filing Date:
September 05, 2019
Export Citation:
Assignee:
SHOWA DENKO KK (JP)
International Classes:
C07C17/358; C07C21/09; B01J31/30; C07B61/00
Foreign References:
| JPS4842853B1 | 1973-12-14 | |||
| JPS4711560A | ||||
| JPS5452014A | 1979-04-24 |
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
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