FREY, HERBERT;KAUPP, GERD, SYNTHESIS,(1990) N0, C. 931-934
作者:FREY, HERBERT、KAUPP, GERD
DOI:——
日期:——
2-Propinylamine aus 1,1-Dibrom-1-alkenen
作者:Herbert Frey、Gerd Kaupp
DOI:10.1055/s-1990-27057
日期:——
2-Propynylamines from 1,1-Dibromo-1-alkenes Easily accessible 1,1-dibromo-1-alkenes 1 react with primary or secondary amines in a complex series of reactions to give directly N-substituted or N,N-disubstituted (1-Alkyl-1-aryl-2-propynyl)- amines 5 in useful yields. This simple method avoids the isolation of the intermediates (bromoacetylenes or bromoallenes) and makes a series of 2-propynylamines with an acetylenic hydrogen available.