Oxalic Acid Monothioester for Palladium-Catalyzed Decarboxylative Thiocarbonylation and Hydrothiocarbonylation
作者:Bin Zhao、Yao Fu、Rui Shang
DOI:10.1021/acs.orglett.9b03701
日期:2019.12.6
hydrothiocarbonylation of unsaturated carbon–carbon bonds at room temperature with high chemo- and regioselectivity. The reaction is applicable to the synthesis of cysteine-derived thioesters, thus allowing chemical modification of cysteine-containing peptides. Decarboxylation of OAM proceeds through oxidative addition of Pd(0) to the acyl–S bond, which accounts for the very mild reaction conditions
草酸一硫代酯(OAM)是一种易于获得和存储的试剂,在本文中报道了它是硫代酯的合成等同物,用于室温下具有高化学和区域选择性的钯催化的有机卤化物的脱羧硫代羰基化和不饱和碳-碳键的氢硫代羰基化。该反应适用于半胱氨酸衍生的硫酯的合成,因此可以对含半胱氨酸的肽进行化学修饰。OAM的脱羧反应是通过将Pd(0)氧化加到酰基-S键上进行的,这说明了反应条件非常温和。