Process for preparing alkyl-(3-chlorophenyl)-sulphones

Details Process for preparing alkyl-(3-chlorophenyl)-sulphones Process for preparing alkyl-(3-chlorophenyl)-sulphones

1994-08-10

1995-12-12

Reamer, James H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfur containing

C07C31714

Patent

active

054751420

ABSTRACT:
Alkyl-(3-chlorophenyl)-sulphones are particularly advantageously obtained by chlorination of alkylphenylsulphones if alkylphenylsulphones are chlorinated in molten form with elemental chlorine in the presence of iron(III) chloride and optionally iodine and/or sulphur.

REFERENCES:
patent: 4675447 (1987-06-01), Ludvik
patent: 5189224 (1993-02-01), Baba et al.
patent: 5241120 (1993-08-01), Sell et al.
H. Kugita et al., Chemical Abstracts, 62, 6422c (1965).
George Thieme Verlag, Method of Organic Chemistry, 4th Edition, vol. V/3, pp. 715-716 (1962).
Patent Abstracts of Japan, Oct. 4, 1991, C Field; "Production of 2-chloro-4-methanesulfonyl-m-xylene", N. Tanaka, JP-A-03,161,469, Jul. 11, 1991.
Patent Abstracts of Japan, Sep. 18, 1990, C Field; "2-chloro-4-methylsufonyl-m-xylene and production thereof", T. Ishikura, JP-A-02,169,564, Jun. 29, 1990.

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