A dispersion of potassium amide on alumina is a very active catalyst for the prototropic isomerisation of NN-dialkylprop-2-ynylamines into allenamines and ynamines. NN-dialkylmethyl ynamines are readily obtained in large amounts by a simple continuous process.
A. J. Hubert and H. G. Viehe, J. Chem. Soc. C, 1968, 228 DOI: 10.1039/J39680000228
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