Asymmetric direct vinylogous aldol reaction of furanone derivatives catalyzed by an axially chiral guanidine base.
Ube
Hitoshi
H
Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
Shimada
Naoki
N
Terada
Masahiro
M