Oxidative Conversion of α,α-Disubstituted Acetamides to Corresponding One-Carbon-Shorter Ketones Using Hypervalent Iodine (λ<sup>5</sup>) Reagents in Combination with Tetraethylammonium Bromide
作者:Eknath V. Bellale、Dinesh S. Bhalerao、Krishnacharya G. Akamanchi
DOI:10.1021/jo801580g
日期:2008.12.5
Alpha,alpha-disubstituted acetamides undergo oxidative dehomologation to give one-carbon-shorter ketones when reacted with a hypervalent iodine (lambda(5)) reagent in combination with tetraethylammonium bromide (TEAB) in various solvents. In further studies, one such combination of a hypervalent iodine (lambda(5)) reagent, o-iodoxybenzoic acid, and TEAB has been established as a new, mild, efficient
当与高价碘(lambda(5))试剂与四乙基溴化铵(TEAB)组合在各种溶剂中反应时,α,α-二取代的乙酰胺会经历氧化脱卤素反应,生成一个碳短的酮。在进一步的研究中,一种高价碘(lambda(5))试剂,邻碘氧苯甲酸和TEAB的组合已被确立为一种新型,温和,有效和通用的转化方法。