Enantioselective PTC: Varying the cinchona alkaloid motive
摘要:
Enantiopure phase transfer catalysts 3a-j, 4a-j, 5, 8a-j, 9a,b, 10a,b were prepared which represent changes in the fundamental structure of the alkaloids. These were tested in three enantioselective model reactions. It turned out that both the quinoline group carrying side arm and the quinuclidine core are important features of PT catalysts for highly enantioselective reactions. (C) 1999 Elsevier Science Ltd. All rights reserved.
Enantiopure phase transfer catalysts 3a-j, 4a-j, 5, 8a-j, 9a,b, 10a,b were prepared which represent changes in the fundamental structure of the alkaloids. These were tested in three enantioselective model reactions. It turned out that both the quinoline group carrying side arm and the quinuclidine core are important features of PT catalysts for highly enantioselective reactions. (C) 1999 Elsevier Science Ltd. All rights reserved.