The reaction of phenylacetylene with HC(NMe 2 ) 3 and C(NMe 2 ) 4 yielded PhCCH(NMe 2 ) 2 and PhCCC(NMe 2 ) 3 , respectively. The reactions of the latter two compounds with acetic acid and methanol are discussed. ... Tetrahedron. Vol. 24, pp. 2767 to 2771. Pergamon Press 1968. Printed in Great Britain THE SYNTHESIS AND CHEMISTRY OF 3-PHENYL-2-PROPYNYLMULTIAMINES H. WEINGARTEN Central Research Department, Monsanto Company, Saint Louis, ...