A New Application of Hypervalent Iodine (λ<sup>5</sup>) Reagents with Organosulfonic Acids for Direct α-Organosulfonyloxylation Carbonyl Compounds
作者:Krishnacharya Akamanchi、Ulhas Mahajan
DOI:10.1055/s-2008-1072508
日期:——
Hypervalent iodine (λ 5 ) reagents in combination with P-toluenesulfonic acid when reacted with ketones under reflux temperature in acetonitrile gave α-tosyloxy ketones in moderate to excellent yields. The reaction was developed further for both ketones and dicarbonyl compounds using Dess-Martin periodinane reagent in combination with P-toluenesulfonic acid and methanesulfonic acid, to give mono-α-tosyloxy
当在回流温度下在乙腈中与酮反应时,高价碘 (λ 5 ) 试剂与对甲苯磺酸结合,以中等至极好的收率得到 α-甲苯磺酰氧基酮。使用 Dess-Martin 高碘烷试剂与对甲苯磺酸和甲磺酸结合,进一步开发了酮和二羰基化合物的反应,以非常高的收率得到单-α-甲苯磺酰氧基和单-α-甲磺酰氧基产物。