Cyclisations par l'intermédiaire de fonctions phénylthioet phénoxy??carbamyle. I. Diphényl??1, 2??alcoyl??5??dioxo??3, 6??hexahydro??triazines??1, 2, 4

P Baudet, M Calin

Index: Baudet,P.; Calin,M. Helvetica Chimica Acta, 1969 , vol. 52, p. 282 - 291

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Citation Number: 3

Abstract

Abstract The N-(p-nitrophenoxy-carbonyl) and N-(phenylthio-carbonyl) derivatives of α- amino-acyl-hydrazides cyclize in presence of diazomethane, yielding hexahydro-1, 2, 4- triazines with simultaneous formation of p-nitro-anisole or thio-anisole respectively. The molecules with a phenoxycarbonyl function such as N-(phenoxycarbonyl)-glycyl-(N, N′- diphenylhydrazide) give the corresponding ring products and anisole only in solvents with ...