Title:
ISOMERIZATION OF CIS-ALKENYL COMPOUND
Document Type and Number:
Japanese Patent JPH0733683
Kind Code:
A
Abstract:
PURPOSE: To safely and economically isomerize a cis-alkenyl compound to trans-compound in a high isomerization ratio and selectivity by carrying out the isomerization reaction in the presence of a nitric acid catalyst
CONSTITUTION: Nitric acid is added to a cis-alkenyl compound (e.g. cis-4- tridecenyl chloride) and reacted at 60-150°C for 0.5-5hr. The nitric acid is used separately in an amount of 0.5-3wt.% in terms of 100% nitric acid based on the cis-alkenyl compound. The isomerization reaction may be carried out in a solvent such as toluene and xylene according to the case. The process provides a geometric isomer important as a constituent component for synthetic pheromone, synthetic perfumery, terpenes, etc.
Inventors:
TERAUCHI TAKANOBU
SAKURADA TOYOHISA
FUKUMOTO TAKEHIKO
SUZUKI HIROSHI
SAKURADA TOYOHISA
FUKUMOTO TAKEHIKO
SUZUKI HIROSHI
Application Number:
JP17952893A
Publication Date:
February 03, 1995
Filing Date:
July 21, 1993
Export Citation:
Assignee:
SHINETSU CHEMICAL CO
International Classes:
C07B35/08; C07B61/00; C07C5/22; C07C11/02; C07C11/107; C07C17/358; C07C21/04; C07C29/56; C07C33/025; C07C51/353; C07C51/62; C07C57/12; C07C57/66; B01J27/24; C07C67/293; C07C67/333; C07C69/007; C07C69/145; C07C69/533; C07C69/58; (IPC1-7): C07B35/08; B01J27/24; C07C5/22; C07C11/107; C07C17/358; C07C21/04; C07C29/56; C07C33/025; C07C51/353; C07C57/12; C07C57/66; C07C69/145
Attorney, Agent or Firm:
Nao Okuyama (2 outside)