Chemo- and regioselective dimerization of terminal alkynes promoted by methylaluminoxane

被引：62

作者：

Dash, AK

Eisen, MS ^{[1
]}

机构：

[1] Technion Israel Inst Technol, Dept Chem, IL-32000 Haifa, Israel

[2] Technion Israel Inst Technol, Inst Catalysis Sci & Technol, IL-32000 Haifa, Israel

来源：

ORGANIC LETTERS | 2000年 / 2卷 / 06期

关键词：

D O I：

10.1021/ol9903584

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Methylalumoxane (MAO) was found to be an active catalytic precursor for the chemo- and regioselective dimerization of a wide range of aryl- and alkyl-substituted terminal alkynes yielding the corresponding geminal dimers A. For an olefin-functionalized terminal alkyne (RC=CH, R = MeC=CH2), the geminal dimer undergoes an intermolecular [4 + 2] cycloaddition forming compound B.

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页码：737 / 740

页数：4

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