Efficient One-Pot Multifunctionalization of Alkynes en Route to α-Alkoxyketones, α-Thioketones, and α-Thio Thioketals by using an Umpolung Strategy
作者:Zhou Xu、Rongliang Zhai、Ting Liang、Liming Zhang
DOI:10.1002/chem.201703087
日期:2017.10.12
All topsy turvy: A new and broadly applicable method for the synthesis of unique α-oxygenated ketones, α-thio ketones and α-thio thioketals via umpolung reaction of nucleophiles-alcohols/thioalcohols and N-alkenoxypyridinium salts generated from alkynes in a one-pot manner is reported for the first time. The reaction is controllable and tunable with good substrates scope (46 examples) and excellent
所有颠倒的Turvy:一种新的且广泛适用的方法,可通过核糖醇/硫醇与N-烯炔氧基吡啶鎓盐的单酚反应,合成独特的α-氧化酮,α-硫代酮和α-硫代缩酮,壶的方式是第一次报道。该反应是可控和可调谐的,具有良好的底物范围(46个实例)和出色的官能团耐受性(请参见方案)。