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Synthesis 1990; 1990(10): 931-934
DOI: 10.1055/s-1990-27057
DOI: 10.1055/s-1990-27057
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2-Propinylamine aus 1,1-Dibrom-1-alkenen
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Publikationsverlauf
Publikationsdatum:
17. September 2002 (online)
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.