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Synthesis 1990; 1990(10): 931-934
DOI: 10.1055/s-1990-27057
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2-Propinylamine aus 1,1-Dibrom-1-alkenen

Herbert Frey* , Gerd Kaupp
  • *Fachbereich 9, Organische Chemie I, Universität Oldenburg, Postfach 2503, D-2900 Oldenburg, Federal Republic of Germany
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Publication Date:
17 September 2002 (online)

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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.