Cyclization Reactions through DDQ-Mediated Vinyl Oxazolidinone Oxidation

被引:74
|
作者
Liu, Lei [1 ]
Floreancig, Paul E. [1 ]
机构
[1] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA
基金
美国国家科学基金会; 美国国家卫生研究院;
关键词
C-H ACTIVATION; TRIISOPROPYLSILYL ENOL ETHERS; CARBON BOND FORMATION; CHIRAL ENAMIDES; ELECTROSTATIC STABILIZATION; OXOCARBENIUM IONS; LEWIS-ACID; AMIDES; REACTIVITY; FUNCTIONALIZATION;
D O I
10.1021/ol901188q
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Vinyl oxazolidinones react with DDQ to form alpha,beta-unsaturated acyliminium ions in a new method for forming electrophiles under oxidative conditions. Appended nucleophiles undergo 1,4-addition reactions with these intermediates to form cyclic vinyl oxazolidinones with good levels of diastereocontrol, highlighting a new approach to utilizing oxidative carbon-hydrogen bond functionalization to increase molecular complexity.
引用
收藏
页码:3152 / 3155
页数:4
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