PROCESS FOR THE PRODUCTION OF 2,6-DICHLORO-3,5-DI(SECONDARY OR TERTIARY ALKYL)TOLUENE

Title:

PROCESS FOR THE PRODUCTION OF 2,6-DICHLORO-3,5-DI(SECONDARY OR TERTIARY ALKYL)TOLUENE

Document Type and Number:

WIPO Patent Application WO/1996/041788

Kind Code:

A1

Abstract:

An object of the invention is to find out a promoter enabling the production of a 2,6-dichloro-3,5-di(secondary or tertiary alkyl)toluene of general formula (I) in a high yield without any restriction due to reaction scale. A 2,6-dichloro-3,5-di(secondary or tertiary alkyl)toluene of general formula (I) is produced by chlorinating a 3,5-di(secondary or tertiary alkyl)toluene of the general formula (II) in the presence of both a Lewis acid and an aromatic sulfur compound of general formula (III) as the promoter, (wherein R1 and R2 are each independently secondary or tertiary alkyl); Ar1 and Ar2 are each independently a substituted or unsubstituted aromatic ring; and n is 1 or 2.

Inventors:

HOZUMI TOSHIO (JP)
TANONAKA TAKAYUKI (JP)
TAKAHASHI HITOSHI (JP)
MOE HIDENORI (JP)
HIRUTA MASAAKI (JP)
KASAMI TADAHITO (JP)

Application Number:

PCT/JP1996/001584

Publication Date:

December 27, 1996

Filing Date:

June 12, 1996

Export Citation:

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Assignee:

KUREHA CHEMICAL IND CO LTD (JP)
HOZUMI TOSHIO (JP)
TANONAKA TAKAYUKI (JP)
TAKAHASHI HITOSHI (JP)
MOE HIDENORI (JP)
HIRUTA MASAAKI (JP)
KASAMI TADAHITO (JP)

International Classes:

B01J31/30; B01J31/02; C07B61/00; C07C17/12; C07C25/02; (IPC1-7): C07C25/02; B01J31/30; C07B61/00; C07C17/12

Foreign References:

JPH0253743A	1990-02-22
JPS62153234A	1987-07-08
JPH041143A	1992-01-06

Other References: