Preparation of N-phenyl(pyridyl) sulfonyldiamides

Details Preparation of N-phenyl(pyridyl) sulfonyldiamides Preparation of N-phenyl(pyridyl) sulfonyldiamides

1987-11-06

1989-09-19

Lee, Mary C.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

560 13, 562430, 564 79, C07D21302, C07C14378

Patent

active

048683086

ABSTRACT:
A process for the preparation of N-phenyl(pyridyl)sulfonyldiamides by reacting a 2-aminobenzoic acid (nicotinic acid) derivative with sulfur trioxide, chlorosulfonic acid or an adduct of sulfur trioxide with a tertiary amine in the presence of a diluent and of a tertiary amine, and reacting the resulting sulfamate with a primary amine and a phosphorus halide, or by reacting a 2-aminobenzoic acid (nicotinic acid) derivatives with an N-alkyl(cycloalkyl)sulfamic acid or a salt of this acid in the presence of a diluent and of a phosphorus halide.

REFERENCES:
patent: 3822257 (1974-07-01), Hamprecht et al.
patent: 3935201 (1976-01-01), Mangold et al.
patent: 4438276 (1984-03-01), Stabile et al.
March, J., Advanced Organic Chemistry, 3rd Edition, 1985.

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