The Journal of Organic Chemistry

The Phenoxaphosphinic Acid and Phenothiaphosphinic Acid Ring Systems1

LD Freedman, GO Doak

Index: Freedman,L.D.; Doak,G.O. Journal of Organic Chemistry, 1964 , vol. 29, p. 1983 - 1985

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Citation Number: 6

Abstract

The phenoxaphosphinic acid ring system (I) was found to be remarkably stable. 2, 8- Dimethylphenoxaphosphinic acid was oxidized to the corresponding dicarboxy compound, and dinitro derivatives of both the dimethyl and the dicarboxy compounds were prepared. 2, 8-Dimethylphenothiaphosphinic acid was prepared by a variant of the Friedel-Crafts reaction in which p-tolyl sulfide and phosphorus trichloride were heated together in the ...