Aromatic sulfonamide sulfonyl chloride compounds

Details Aromatic sulfonamide sulfonyl chloride compounds Aromatic sulfonamide sulfonyl chloride compounds

1978-01-09

1979-11-27

Schwartz, Gerald A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C14370

Patent

active

041761340

ABSTRACT:
An aromatic sulfonamide sulfonyl chloride, useful as an intermediate in the preparation of cyan dye-releasing redox compounds for diffusion transfer photographic materials, represented by the following general formula (I) ##STR1## wherein A represents a divalent benzene nucleus or a divalent naphthalene nucleus, in which in each nucleus the bonding thereto is symmetrical, and a method for the synthesis thereof comprising reacting an aromatic disulfonyl chloride represented by the formula (IIa) or (IIb) ##STR2## wherein the two sulfonyl chloride groups are substituted at symmetrical positions on the benzene and the naphthylene ring, with 5-amino-1-naphthol.

REFERENCES:
patent: 3929760 (1975-12-01), Landholm et al.

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