PALLADIUM-CATALYZED OXIDATIVE DIMERIZATION OF STANNYLQUINONES - A SIMPLE METHOD FOR THE SYNTHESIS OF SYMMETRICAL 2,2'-BISQUINONES

被引:37
作者
LIEBESKIND, LS
RIESINGER, SW
机构
[1] Department of Chemistry, Emory University Atlanta
关键词
STANNYLQUINONES; BISQUINONES; STILLE CROSS-COUPLING; PALLADIUM-CATALYZED CROSS-COUPLING; OXIDATIVE DIMERIZATION;
D O I
10.1016/S0040-4039(00)93528-7
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Stannylquinones, prepared by heating 4-alkynyl-4-hydroxy-2-cyclobutenones with n-Bu3SnOMe, undergo oxidative dimerization to 2,2'-bisquinones in N-methylpyrrolidone in the presence of 10% Cl2Pd(PPh3)2 and 20% CuI using a full equivalent of 1,4-benzoquinone as the stoichiometric oxidant.
引用
收藏
页码:5681 / 5682
页数:2
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