Process for the synthesis of 3-chloro-4-hydroxyacetanilide

Details Process for the synthesis of 3-chloro-4-hydroxyacetanilide Process for the synthesis of 3-chloro-4-hydroxyacetanilide

1990-02-08

1991-03-12

Elmore, Carolyn S.

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

Organic compounds

Amino nitrogen containing

C07C23325, C07B 4306

Patent

active

049994573

ABSTRACT:
A novel process for the preparation of 3-chloro-4-hydroxyacetanilide in high yields is disclosed which involves reacting N-acetyl-para-aminophenol (APAP) with sulfuryl chloride (SO.sub.2 Cl.sub.2) as the chlorine source and liquid SO.sub.2 as the reaction medium.

REFERENCES:
patent: 2759981 (1956-08-01), Pray et al.
patent: 4210765 (1980-07-01), Mark
patent: 4310702 (1982-01-01), Masilammi et al.
patent: 4439595 (1984-03-01), Chiang
patent: 4439596 (1984-03-01), Irwin
Masilammi et al., J. of Org. Chem., 46(22), 4486-4489, Oct. 1981.
Neckers & Doyle, Organic Chemistry, John Wiley & Sons, Inc., 1977, pp. 668-669.

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