Studies into the factors affecting the rate of reaction in the enantioselective epoxidation of alpha,beta -unsaturated ketones utilising Cinchona alkaloid-derived quaternary ammonium phase-transfer catalysts are reported. This has led to the identification of improved conditions for the room temperature epoxidation process, which require only I mol% catalyst and lead to isolation of the epoxide products in high enantiomeric excess. (C) 2001 Elsevier Science Ltd. All rights reserved.
机构:
Nagoya City Univ, Fac Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, JapanNagoya City Univ, Fac Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, Japan
Arai, S
Tsuge, H
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Nagoya City Univ, Fac Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, JapanNagoya City Univ, Fac Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, Japan
Tsuge, H
Shioiri, T
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Nagoya City Univ, Fac Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, JapanNagoya City Univ, Fac Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, Japan
机构:
Nagoya City Univ, Fac Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, JapanNagoya City Univ, Fac Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, Japan
Arai, S
Tsuge, H
论文数: 0引用数: 0
h-index: 0
机构:
Nagoya City Univ, Fac Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, JapanNagoya City Univ, Fac Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, Japan
Tsuge, H
Shioiri, T
论文数: 0引用数: 0
h-index: 0
机构:
Nagoya City Univ, Fac Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, JapanNagoya City Univ, Fac Pharmaceut Sci, Mizuho Ku, Nagoya, Aichi 4678603, Japan