Chiral Phosphoric Acid-Catalyzed Addition of Thiols to <i>N</i>-Acyl Imines: Access to Chiral <i>N</i>,<i>S</i>-Acetals
作者:Gajendrasingh K. Ingle、Michael G. Mormino、Lukasz Wojtas、Jon C. Antilla
DOI:10.1021/ol201899c
日期:2011.9.16
first catalytic asymmetric method to prepare enantioenriched N,S-acetals using chiral BINOL phosphoric acids is reported. The reaction combines N-acyl imines with thiols to generate products in excellent yield and enantioselectivity. The addition reaction could also be achieved with an exceptional substrate to catalyst (S/C) molar ratio. Electron-rich and electron-deficient aromatic N-acyl imines, as
报道了使用手性 BINOL 磷酸制备富含对映体的N , S-缩醛的第一种催化不对称方法。该反应将N-酰基亚胺与硫醇结合,以优异的产率和对映选择性生成产物。加成反应也可以通过特殊的底物与催化剂 (S/C) 摩尔比来实现。富电子和缺电子的芳香族N-酰基亚胺,以及广泛的脂肪族和芳香族硫醇,都表现出优异的反应性。