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.