Tetrahedron Letters

Preparation of N, N-unsubstituted selenoureas and thioureas from cyanamides

M Koketsu, Y Fukuta, H Ishihara

Index: Koketsu, Mamoru; Fukuta, Yoshihisa; Ishihara, Hideharu Tetrahedron Letters, 2001 , vol. 42, # 36 p. 6333 - 6335

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Citation Number: 42

Abstract

The syntheses of many selenocarbonyl compounds have been reported and the recent reviews detail the studies. 1., , , , , , , and Selenoureas are used as the precursors for the syntheses of selenium–nitrogen heterocyclic compounds 2., , , , and and their activities have received increasing attentions. 3., , and There is only a few reports of preparation of N,N-unsubstituted selenourea by the reaction of hydrogen selenide with cyanamide. 2d The preparation of N,N- ...