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■ Reduction of 3,4-Disubstituted 1,6-Propano-1H,6H-3a-thia(SIV)-1,3,4,6-tetraazapentalene-2,5(3H,4H)-dithione with Sodium Borohydride

Noboru Matsumura, Masaaki Tomura, Osamu Mori, Masataka Ukawa, and Shigeo Yoneda

*Department of Applied Chemistry, College of Engineering, University of Osaka Prefecture, Sakai, Osaka 593-8531, Japan

Abstract

Reduction of tetraazapentalene derivatives with sodium borohydride (NaBH₄) afforded the ring-opening compound, 1,3-bis(substituted thiocarbamoyl)perhydropyrimidine, in goad yields by the reduction-elimination of the C=S^IV moiety.