AbstractA novel one-pot, multicomponent asymmetric synthesis of α-amidosulfides was described. By employing chiral phosphoric acid as Brønsted acid and catalyst, α-amidosulfides were obtained in excellent yields with high to excellent enantioselectivities via reaction of thiophenol and N-acylimines generated in situ from α-amidosulfones. Graphical abstract
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 catalyticasymmetric 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