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Author:

戴乾圜 (戴乾圜.) | 钟超平 (钟超平.)

Abstract:

<正> α-酰氨基苯丙酮的β-羟基衍生物,用异丙醇铝还原时,立体选择性地得到苏式异构物(threo),再转化成氯霉素或其类似物。但用硼氢化钠、四氢化铝锂一类试剂还原时,则得赤式(erythro)与苏式体的混合物,甚至以赤式为主。可能后一类试剂,因与酰氨基上的活泼氢相作用,而可能沿Cram五员环模型生成赤式异构体。若以邻苯二甲酰基保护氨基上的活泼氢,则有利于经六员环模

Keyword:

异构物 分解点 氯霉素 立体选择性还原 硼原子 氨基苯 活泼氢 重结晶 标准品

Author Community:

  • [ 1 ] 北京工业大学

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Source :

科学通报

Year: 1977

Issue: 02

Page: 89-92,96

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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