ORGANOLEAD-MEDIATED ARYLATION OF ALLYL BETA-KETO-ESTERS - SELECTIVE SYNTHESIS OF 2'-HYDROXYISOFLAVONES

被引:10
作者
DONNELLY, DMX [1 ]
FINET, JP [1 ]
RATTIGAN, BA [1 ]
机构
[1] UNIV AIX MARSEILLE 1,CTR ST JEROME,LAB SREP RADICAUX LIBRES & SYNTH,,CNRS,URA 1412,F-13397 MARSEILLE 20,FRANCE
来源
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1 | 1995年 / 13期
关键词
D O I
10.1039/p19950001679
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Arylation of the A-ring-unsubstituted and -substituted 3-(alloxycarbonyl)chroman-4-ones 6-8 with [4,5-dimethoxy-2-(methoxymethoxy)phenyl]lead(IV) triacetate 5 followed by selective catalytic deallyloxy-carbonylation-dehydrogenation afforded 2'-protected isoflavones in high overall yields. Acid-catalysed removal of the methoxymethyl group led to the corresponding 2'-hydroxyisoflavones.
引用
收藏
页码:1679 / 1683
页数:5
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