N,N,N′,N′-tetramethylmethanediamine—A new reagent for aminomethylation of acetylenes
摘要:
A new procedure has been developed for aminomethylation of terminal acetylenes with N,N,N',N'-tetramethylmethanediamine in the presence of transition metals and lanthanide complexes and salts. The procedure ensures formation of the corresponding N,N-dimethylprop-2-yn-l-amines with high yield and selectivity.
Synthese de bases de mannich acetyleniques cycliques
作者:Roland Epsztein、Nicole Le Goff
DOI:10.1016/s0040-4039(00)98152-8
日期:1985.1
Terminal acetylenes can be converted in excellent yields into Mannichbases by reacting them with gem-aminoethers instead of formaldehyde and a secondary amine. This provides a possibility of preparing cyclic aminoacetylenes from w-acetylenic secondary amines, via the derived gem-aminoethers, using high dilution technique.