Process for the preparation of phenyl N-(2-biphenylylsulfonyl) c

Details Process for the preparation of phenyl N-(2-biphenylylsulfonyl) c Process for the preparation of phenyl N-(2-biphenylylsulfonyl) c

1985-12-03

1986-09-16

Shippen, Michael L.

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

Organic compounds

Carboxylic acid esters

C07C14383

Patent

active

046123857

ABSTRACT:
The invention relates to a process for the production of phenyl N-(2-biphenylylsulfonyl) carbamate represented by the general formula ##STR1## by reacting 2-phenylbenzene sulfonamide represented by the general formula ##STR2## with diphenyl carbonate represented by the general formula ##STR3## which is characterized in that said reaction is carried out in the presence of an alkali metal hydroxide and an aprotic solvent at temperatures between about 20.degree. C. and about 60.degree. C.

REFERENCES:
patent: 3590074 (1971-06-01), Heiss
patent: 3649674 (1972-03-01), Hoyer
patent: 3933894 (1976-01-01), Stephens
patent: 4097676 (1978-06-01), Romano
patent: 4230874 (1978-10-01), Pallos
patent: 4537986 (1985-08-01), Reissenweber
Specification, Nit 179 corresponding to Japanese Patent Application No. 70909/1984.

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