Mono- and diamide derivatives of p-diethynylbenzene
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p-Diethynylbenzene reacts readily with formaldehyde and secondary amines in the presence of catalytic amounts of CuCl, forming the corresponding diacetylenic diamines.
In the reaction of p-diethynylbenzene with dimethylamine hydrochloride, instead of the corresponding diamine, the monoamine with free acetylenic hydrogen is formed; it was utilized for the production of a tetraacetylenic diamine.
KeywordsHydrogen Formaldehyde Hydrochloride Diamine Monoamine
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