A highly regioselective synthesis of α,α-bis-Mannich bases by aminomethylation of imines with iminium salts
摘要:
The aminomethylation of imines R(CH3)C=NPr (R = alkyl, aryl) with iminium salts provides for the first time a mild, broadly applicable and highly regioselective route to bis-Mannich bases RCOCH(CH2NR'(2))(2). (C) 1999 Elsevier Science Ltd. All rights reserved.
Zinc(II)-Catalyzed Synthesis of Propargylamines by Coupling Aldimines and Ketimines with Alkynes
作者:Syeda Aaliya Shehzadi、Aamer Saeed、Filip Lemière、Bert U. W. Maes、Kourosch Abbaspour Tehrani
DOI:10.1002/ejoc.201701567
日期:2018.1.10
Imines derived from unactivated aldehydes or ketones and primary amines or α‐amino acid esters have been shown to undergo a ZnII‐catalyzed reaction with a variety of terminal alkynes to give secondary propargylamines that have tri‐ and tetrasubstituted α‐carbon atoms (from aldimines and ketimines, respectively).