REGIOSELECTIVE α-MONOCHLORINATION OF N-PROTECTED-3-PIPERIDONES

REGIOSELECTIVE α-MONOCHLORINATION OF N-PROTECTED-3-PIPERIDONES
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DOI:
10.3987/com-11-s(p)23
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发表时间:
2012-01-01
期刊:
影响因子:
0.6
通讯作者:
Weinreb, Steven M.
Weinreb, Steven M.
中科院分区:
化学4区
文献类型:
--
作者:
Chauhan, Pradeep S.;Majireck, Max M.;Weinreb, Steven M.

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本文报道了用N-氯代丁二酰亚胺(NCS)和Amberlyst-15离子交换树脂对各种N-磺酰基和N-酰基保护的-3-哌啶酮进行区域选择性α-氯化的直接方法,在所有情况下都主要(或专门)得到4-氯-3-哌啶酮。
A direct procedure for regioselective alpha-monochlorination of various N-sulfonyl and N-acyl-protected-3-piperidones with N-chlorosuccinimide (NCS) and Amberlyst-15 ion exchange resin is reported which leads predominantly (or exclusively) to 4-chloro-3-piperidones in all cases.