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.
中科院分区:
文献类型:
--
作者:
Chauhan, Pradeep S.;Majireck, Max M.;Weinreb, Steven M.
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.