Borrowing Hydrogen Methodology for Amine Synthesis under Solvent-Free Microwave Conditions
作者:Andrew J. A. Watson、Aoife C. Maxwell、Jonathan M. J. Williams
DOI:10.1021/jo102521a
日期:2011.4.1
Application of microwave heating to the Borrowing Hydrogen strategy to form C-N bonds from alcohols and amines is presented, removing the need for solvent and reducing the reaction times while still yielding results comparable with those using thermal heating.
Ruthenium-Catalyzed Synthesis of Secondary Alkylamines: Selective Alkylation with Aliphatic Amines
N-alkylation of tert-alkylamines applying aliphatic amines is described for the first time. In the presence of the Shvo catalyst 1, tert-octylamine 4 and 1-adamantylamine 5 are alkylated using primary, secondary, and even tertiary amines to give the corresponding monoalkylated tert-alkylamine in moderate to very good yields and excellent selectivity. This novel reaction proceeds without an additional