S. Caddick et al., APPLICATION OF A RADICAL CATALYZED ISOMERIZATION REACTION TO THE SYNTHESIS OF FUSED [1,2-A]INDOLES, Tetrahedron letters, 38(35), 1997, pp. 6249-6250
A new radical triggered isomerisation approach to fused indoles is pre
sented; the proposed mechanism involves the radical cyclization of a b
eta-toluenesulfonyl-vinyl radical or beta-toluenesulfonyl-alkyl radica
l onto a sulfone substituted indole and is catalysed with Se-phenyl-p-
toluene-selenosulfonate (TsSePh). (C) 1997 Elsevier Science Ltd.