G. Foray et al., A NOVEL REACTION OF N-PHENYLTHIOCAPROLACTAM - THE ALPHA-SULFENYLATIONOF KETONES UNDER MILD CONDITIONS, Tetrahedron letters, 38(12), 1997, pp. 2035-2038
N-phenylthiocaprolactam (2) reacts with the enolate anions of aliphati
c, aromatic or cyclic ketone 1a-e, to give the corresponding alpha-phe
nylthioketones 3a-e. This reaction proceeds with high yields of monosu
lphenylation (80-97%) in DMSO under mild conditions (potassium terbuto
xide, 25 degrees C, 10 min). (C) 1997 Elsevier Science Ltd.