Gold-catalyzed efficient preparation of linear α-haloenones from propargylic acetates
Gold-catalyzed efficient preparation of linear α-haloenones from propargylic acetates
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DOI:
10.1016/j.tet.2008.11.107
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发表时间:
2009-02-28
期刊:
影响因子:
2.1
通讯作者:
Zhang, Liming
中科院分区:
文献类型:
--
作者:
Yu, Meng;Zhang, Guozhu;Zhang, Liming
Versatile linear alpha-iodo- and alpha-bromoenones are prepared efficiently from readily accessible propargylic acetates using 2 mol % of Au(PPh3)NTf2. This reaction is easy to execute and has broad substrate scope. Good to excellent Z-selectivities are observed in the cases of propargylic acetates derived from aliphatic aldehydes. (C) 2008 Published by Elsevier Ltd.