Deprotonation and alkylation of 2-methyl-4,5,6,7-tetrahydro-3H-azepine

Deprotonation and alkylation of 2-methyl-4,5,6,7-tetrahydro-3H-azepine
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2-甲基-4,5,6,7-四氢-3H-氮杂卓的去质子化和烷基化

DOI:
10.1071/ch99094
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发表时间:
1999
影响因子:
1.1
通讯作者:
S. Gorsuch
S. Gorsuch
中科院分区:
化学4区
文献类型:
--
作者:
M. Brimble;S. Gorsuch

文献摘要

被引文献

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在-30 °C下,在四氢呋喃中使用二异丙基氨基锂对2-甲基-4,5,6,7-四氢-3H-氮杂卓(5)进行去质子化。氧化氘的加入导致在环外位置>95%的氘掺入。添加一系列的亲电试剂的有机锂物种提供中等产率的烷基化产物,其中取代在环外的位置已经发生。
The deprotonation of 2-methyl-4,5,6,7-tetrahydro-3H-azepine (5) using lithium diisopropylamide was effected at −30°C in tetrahydrofuran. Addition of deuterium oxide resulted in >95% incorporation of deuterium at the exocyclic position. Addition of a range of electrophiles to the organolithium species afforded moderate yields of the alkylation products wherein substitution at the exocyclic position had occurred.