Binaphthyl-modified quaternary phosphonium salts as chiral phase-transfer catalysts: asymmetric amination of beta-keto esters.
He
Rongjun
R
Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto, 606-8502, Japan.
Wang
Xisheng
X
Hashimoto
Takuya
T
Maruoka
Keiji
K