A. Kamimura et al., A simple preparation of syn-NH-amide aldols and amide-Baylis-Hillman adducts via a Michael-aldol tandem process, J CHEM S P1, (24), 2000, pp. 4499-4504
The thiolate- or selenolate-induced Michael-aldol tandem process using seco
ndary alpha,beta -unsaturated amides gave alpha -phenylthio- or alpha -phen
ylseleno-methyl-beta -hydroxy amides syn-selectively, which were readily co
nverted into NH-amide aldols or Baylis-Hillman adducts.