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Title:
PRODUCTION OF 3-(4-CHLOROPHENYL)-1-BROMOPROPANE
Document Type and Number:
Japanese Patent JP2000159699
Kind Code:
A
Abstract:

To safely produce the subject compound in high yield and a high selectivity by efficiently and para-selectively chlorinating 3-phenyl-1- bromopropane using a zeolite catalyst as a catalyst and a dichloroalkane as a reactional solvent.

(A) 3-Phenyl-1-bromopropane is para-selectively chlorinated in the presence of (C) a dichloroalkane (preferably 1,2-dichloroethane, etc.), using (B) a zeolite catalyst (preferably type L zeolite). The reaction is preferably carried out at 40-140°C by using the component B in an amount of 1-20 pts.wt. based on 100 pts.wt. of the component A and the component B in a volume of 0.1-10 vol. based on 1 vol. of the component A. Simple substance chlorine is usually used as a chlorinating agent in a molar amount of 0.5-1 based on 1 mol of the component A. The reaction is usually conducted in the liquid phase by a batch method. The component A is preferably prepared by a Grignard reaction of a halogenobenzenemagnesium with 1,3-dibromopropane.


Inventors:
KIYOKU KEIHEI
TAKIGUCHI MAKOTO
ICHIKAWA SHUJI
Application Number:
JP33231098A
Publication Date:
June 13, 2000
Filing Date:
November 24, 1998
Export Citation:
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Assignee:
MITSUBISHI CHEM CORP
International Classes:
B01J27/122; B01J29/60; C07B61/00; C07C17/12; C07C17/263; C07C22/04; C07C25/02; (IPC1-7): C07C17/12; B01J27/122; B01J29/60; C07C17/263; C07C22/04; C07C25/02
Attorney, Agent or Firm:
Hasegawa Moji