An allenic Pauson-Khand-type reaction:: A reversal in π-bond selectivity and the formation of seven-membered rings

被引：121
作者：
Brummond, KM [1 ]
Chen, HF
Fisher, KD
Kerekes, AD
Rickards, B
Sill, PC
Geib, SJ
机构：
[1] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA
[2] W Virginia Univ, Dept Chem, Morgantown, WV 26506 USA
来源：
ORGANIC LETTERS | 2002年 / 4卷 / 11期
关键词：
D O I：
10.1021/ol025955w
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
[GRAPHICS] Treatment of alkynyl allenes with [Rh(CO)(2)Cl](2) results in a formal [2 + 2 + 1] cycloaddition reaction. This reaction occurs with complete regioselectivity for a variety of substrates affording only 4-alkylidene cyclopentenones in good yields. Moreover, seven-membered rings have been prepared in high yields.
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页码：1931 / 1934
页数：4
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