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)
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:
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)
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:
See also references of EP 0837048A4
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