Tetrahedron

Synthesis and X-ray characterisation of a new polycondensed heterocycle obtained by a novel Mn (III)-mediated cascade reaction of 2-cyanophenyl isothiocyanate

G Calestani, L Capella, R Leardini, M Minozzi, D Nanni…

Index: Calestani, Gianluca; Capella, Laura; Leardini, Rino; Minozzi, Matteo; Nanni, Daniele; Papa, Romina; Zanardi, Giuseppe Tetrahedron, 2001 , vol. 57, # 33 p. 7221 - 7233

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Citation Number: 24

Abstract

2-Cyanophenyl isothiocyanate reacted with Mn (III) acetate in acetic acid or acetonitrile to give fair yields of a new polycondensed heterocycle arising from the joining together of two molecules of the starting isothiocyanate with loss of a CS moiety. The yields were close to 90% when the reaction was carried out in the presence of diethyl malonate. This compound was unambiguously identified by X-ray crystallography. Under the same conditions, 2-( ...