A novel asymmetric synthesis of 2,5-dialkylpyrrolidines
摘要:
ZnCl2-promoted cyclization of enamino eater 8 furnished a 1.5: 1 mixture of pyrrolidines 9 and 10. NaBH4-reduction of this mixture gave cis and trans-2,5-dialkylpyrrolidines 12 and 13 in the ratio 2:1. The latter derivative was obtained in its 2S, 5S enantiomerically pure form. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.
A novel asymmetric synthesis of 2,5-dialkylpyrrolidines
摘要:
ZnCl2-promoted cyclization of enamino eater 8 furnished a 1.5: 1 mixture of pyrrolidines 9 and 10. NaBH4-reduction of this mixture gave cis and trans-2,5-dialkylpyrrolidines 12 and 13 in the ratio 2:1. The latter derivative was obtained in its 2S, 5S enantiomerically pure form. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.
ZnCl2-promoted cyclization of enamino eater 8 furnished a 1.5: 1 mixture of pyrrolidines 9 and 10. NaBH4-reduction of this mixture gave cis and trans-2,5-dialkylpyrrolidines 12 and 13 in the ratio 2:1. The latter derivative was obtained in its 2S, 5S enantiomerically pure form. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.