2,3a,5,6,7,7a-Hexahydro-3h,4h-benzothiophene-3,4-dione and cyclopenta [b]-tetrahydrothiophene-3,4-dione enolate anions as synthetic equivalents to cyclohex-2-enone and cyclopent-2-enone c-2-carbanions.
An efficient and mild S-allylation of thiols with cyclic Baylis-Hillman acetates with no need of a transition-metal-catalyst or an expensive additive is described. Allyl sulfides are prepared in good to excellent yields (60-97%) and a single regioisomer was observed in all cases.[GRAPHICS].
BARALDI, P. G.;BARCO, A.;BENETTI, S.;POLLINI, G. P.;ZANIRATO, V., TETRAHEDRON LETT., 1984, 25, N 38, 4291-4294
作者:BARALDI, P. G.、BARCO, A.、BENETTI, S.、POLLINI, G. P.、ZANIRATO, V.