asymmetric synthesis;
ammonium salts;
phase-transfer catalysis;
Michael addition;
amino acids;
D O I:
10.3998/ark.5550190.0006.619
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Dimeric cinchonidine and cinchonine-derived ammonium salts have been used as phase transfer catalysts in the Michael addition reaction of N-(diphenylmethylene) glycine tert-butyl ester to electron-poor olefins. The enantioselectivity of the reaction (up to 97% ee) was dependent of the counter-anion present in the ammonium salt, and the catalysts could be recovered by precipitation.
机构:
Nagoya City Univ, Grad Sch Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, JapanNagoya City Univ, Grad Sch Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, Japan
Arai, S
Tokumaru, K
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机构:
Nagoya City Univ, Grad Sch Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, JapanNagoya City Univ, Grad Sch Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, Japan
Tokumaru, K
Aoyama, T
论文数: 0引用数: 0
h-index: 0
机构:
Nagoya City Univ, Grad Sch Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, JapanNagoya City Univ, Grad Sch Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, Japan
机构:
Nagoya City Univ, Grad Sch Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, JapanNagoya City Univ, Grad Sch Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, Japan
Arai, S
Tokumaru, K
论文数: 0引用数: 0
h-index: 0
机构:
Nagoya City Univ, Grad Sch Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, JapanNagoya City Univ, Grad Sch Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, Japan
Tokumaru, K
Aoyama, T
论文数: 0引用数: 0
h-index: 0
机构:
Nagoya City Univ, Grad Sch Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, JapanNagoya City Univ, Grad Sch Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, Japan