Preparation of alkanesulfonamides with low residual ammonium imp

Details Preparation of alkanesulfonamides with low residual ammonium imp Preparation of alkanesulfonamides with low residual ammonium imp

1995-08-21

1997-02-04

O'Sullivan, Peter

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

Organic compounds

Amino nitrogen containing

C07E30344

Patent

active

055999832

ABSTRACT:
A method is disclosed for the preparation of alkanesulfonamide containing low amounts of ammonium or alkylammonium-salt impurities wherein alkanesulfonamide is treated with a base to convert ammonium or alkylammonium-salt impurities to their corresponding base salts and to liberate neutral amine or ammonia.

REFERENCES:
patent: 3574740 (1971-04-01), Martin
patent: 4970339 (1990-11-01), Sandler et al.
patent: 5068427 (1991-11-01), Sandler et al.
patent: 5159112 (1992-10-01), Ollivier et al.
patent: 5166431 (1992-11-01), Sandler et al.
Field and Grunwald, "Symmetrical 1,3-Bis-(alkane-and arylsulfonyl)-Ureas", J. Amer. Soc., vol. 75, pp. 934-937 (1953).

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