Verfahren zur Herstellung von alpha-AEthinylaminen

摘要

1304026 α-Ethynylamines BADISCHE ANILIN- & SODA-FABRIK AG 29 May 1970 [30 May 1969] 25915/70 Heading C2C An α-ethynylamine of formula wherein R1 and R2 separately denote identical or different C 1-20 aliphatic radicals, or hydrogen, or together and with the carbon atom whose substituents they are, denote a C 4-12 carbocyclic ring (this ring optionally being part of a bi- or poly-cyclic system) is prepared by reacting the α-ethynyl alcohol with HCN in the presence of a strongly acidic condensation agent and the N-substituted formamide formed is hydrolysed to the α-ethynylamine.