Synthesis of C-C-bridged bis-isoflavones

被引:23
作者
Al-Maharik, N
Kaltia, SAA
Mutikainen, I
Wähälä, K
机构
[1] Univ Helsinki, Organ Chem Lab, FIN-00014 Helsinki, Finland
[2] Univ Helsinki, Inorgan Chem Lab, Dept Chem, FIN-00014 Helsinki, Finland
关键词
D O I
10.1021/jo991404g
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Unique C-C-bridged bis-isoflavones 5, 8, and 9 were obtained by reaction of 2-bromomethyl-7,4'-dimethoxyisoflavone 4 with ethyl cyanoacetate anion or tetraethylammonium cyanide or by Pd-catalyzed ethoxycarbonylation, respectively. The phenolic carboxylic acid 7 is available from 5 in two steps.
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页码:2305 / 2308
页数:4
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