Convenient preparation of unsymmetrically substituted benzils by permanganate oxidation of beta-oxo phosphorus ylides

被引:9
作者
Aitken, RA
Cadogan, JIG
Gosney, I
机构
[1] UNIV EDINBURGH,DEPT CHEM,EDINBURGH EH9 3JJ,MIDLOTHIAN,SCOTLAND
[2] UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED,DEPT CHEM,LONDON SW7 2AY,ENGLAND
来源
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS | 1995年 / 101卷 / 1-4期
关键词
phosphorus ylides; oxidation; 1,2-diketones; benzils; permanganate; oxoalkylidenetriphenylphosphoranes;
D O I
10.1080/10426509508042528
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Oxidative cleavage of a range of ylides 4 with R(1) and/or R(2) being aromatic groups, using KMnO4 in a two-phase system, affords unsymmetrical benzils and 1-arylpropane-1,2-diones 5 in moderate to good yield, and the ylide formation and oxidation can be combined in a convenient one-pot method.
引用
收藏
页码:281 / 286
页数:6
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