Anomalous Reaction of Bis (2-cyanoethyl) phosphine with Sulfur

MM Rauhut, HA CURRIER, GA PETERS…

Index: Rauhut,M.M. et al. Journal of Organic Chemistry, 1961 , vol. 26, p. 5135 - 5138

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Citation Number: 5

Abstract

In view of the rapid reaction of secondary phosphines with sulfur,'it seemed reasonable that the expected dithiophosphinic acid I (in equilibrium with its ammonium salt) was indeed formed initially but rapidly equilibrated with the cyclic intermediate I1 through intramolecular addition of sulfhydryl to the cyano group. Intermediate 11, which is a cyclic anhydride, might then be attacked by hydroxide either at the imide carbon atom yielding I11 or at the ...