Rapid Access to Thiolactone Derivatives through Radical-Mediated Acyl Thiol–Ene and Acyl Thiol–Yne Cyclization
作者:Ruairi O. McCourt、Fabrice Dénès、Goar Sanchez-Sanz、Eoin M. Scanlan
DOI:10.1021/acs.orglett.8b00996
日期:2018.5.18
A new synthetic approach to thiolactones that employs an efficient acyl thiol–ene (ATE) or acyl thiol–yne (ATY) cyclization to convert unsaturated thiocarboxylic acid derivatives into thiolactones under very mild conditions is described. The high overall yields, fast kinetics, high diastereoselectivity, excellent regiocontrol, and broad substrate scope of these reaction processes render this a very
描述了一种新的合成硫内酯的方法,该方法在非常温和的条件下采用有效的酰基硫醇-烯(ATE)或酰基硫醇-炔(ATY)环化反应将不饱和硫代羧酸衍生物转化为硫代内酯。这些反应过程的高总收率,快速动力学,高非对映选择性,出色的区域控制以及广泛的底物范围,使其成为面向多样性的合成和药物开发工作的非常有用的方法。为观察到的区域控制提供了详细的计算原理。