NbCl3-catalyzed intermolecular [2+2+2] cycloaddition of alkynes and alpha,omega-dienes: highly chemo- and regioselective formation of 5-omega-alkenyl-1,4-substituted-1,3-cyclohexadiene derivatives.
NbCl3-catalyzed intermolecular [2+2+2] cycloaddition of alkynes and alpha,omega-dienes: highly chemo- and regioselective formation of 5-omega-alkenyl-1,4-substituted-1,3-cyclohexadiene derivatives.
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NbCl3 催化的炔烃和 α,omega-二烯的分子间 [2 2 2] 环加成:高度化学和区域选择性形成 5-omega-烯基-1,4-取代的-1,3-环己二烯衍生物。
DOI:
10.1021/jo101229u
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发表时间:
2010
期刊:
影响因子:
--
通讯作者:
Y. Ishii
中科院分区:
文献类型:
--
作者:
Y. Obora;Y. Satoh;Y. Ishii
Intermolecular [2+2+2] cycloaddition of tert-butylacetylene with alpha,omega-dienes was successfully achieved by NbCl(3)(DME) catalyst to afford 5-omega-alkenyl-1,4-disubstituted-1,3-cyclohexadienes in excellent yields with high chemo- and regioselectivity.