The present invention relates to a process for the preparation of cyclopropaneacetylene by the two step process: (1) an alkylation of propiolic acid with a 1,3-disubstituted propane followed by a cycloalkylation to give a 3-cyclopropaneacetylene carboxylic acid; and (2) decarboxylation of 3-cyclopropaneacetylene carboxylic acid in the presence of copper catalyst.

A invenção atual relaciona-se a um processo para a preparação do cyclopropaneacetylene por etapa dois process: (1) um alkylation do ácido propiolic com um propane 1,3-disubstituted seguiu por um cycloalkylation para dar a um 3-cyclopropaneacetylene o ácido carboxylic; e (2) decarboxylation do ácido 3-cyclopropaneacetylene carboxylic na presença do catalizador de cobre.