3-Substituted benz[d]isothiazole-1,1-dioxides

Details 3-Substituted benz[d]isothiazole-1,1-dioxides 3-Substituted benz[d]isothiazole-1,1-dioxides

1977-09-23

1980-01-01

Rollins, Alton D.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

252300, 548207, C07D27506, C07D41710, C07F 718

Patent

active

041816609

ABSTRACT:
This invention relates to 3-(phenyl
aphthyl)-benz[d]isothiazole-1,1-dioxides wherein the 3-phenyl or the 3-naphthyl group is substituted in the para position with hydroxy blocked with certain protecting groups. These compounds are useful as intermediates in the synthesis of certain 3,3-disubstituted-2,3-dihydrobenz[d]isothiazole-1,1-dioxide dyes which find utility, for example, as photographic optical filter agents and filter agent precursors.

REFERENCES:
Abramovitch, R. A. et al., J. Chem. Soc., Perkin Trans I, 22, pp. 2589-2594 (1974).
Haslam, E., "Protection of Catechols", Chap. 4, Protective Groups in Organic Chemistry, Plenum Press, N.Y. (1974).
Clauss, K. et al., Justus Liebigs, Ann. Chem., 1974, vol. 4, p. 569.

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