Convenient preparation of chiral phase-transfer catalysts with conformationally fixed biphenyl core for catalytic asymmetric synthesis of α-alkyl- and α,α-dialkyl-α-amino acids: application to the short asymmetric synthesis of BIRT-377

Physical Sciences and Engineering Chemistry Organic Chemistry

Yong-Gang Wang, Mitsuhiro Ueda, Xisheng Wang, Zhenfu Han, Keiji Maruoka,