A New Procedure for Addition of Thiols to Imines using Zn[(L)‐Proline]2 as a Catalyst under Mild Conditions

Herein we present a new, highly efficient (60- 98 %), low cost and easy procedure for the addition of thiols to N-Boc imines catalyzed by [Zn(L-Pro)2] aiming the construction of some different N,S-acetals by using a low catalytic loading (1 % mol) in short reactions time and under mild conditions.