Regioselective addition of C-electrophiles and C-nucleophiles to a double bond of vinylacetylene—an example of a two-stage AdE reaction with formation of two new carbon-carbon bonds

Conclusions The two-stage reaction of electrophilic addition to a double bond of a C-electrophile and C-nucleophile, whose nature can be independently varied, was carried out for the first time on a dicobalthexacarbonyl complex of vinylacetylene used as an example. The reaction resulted in the formation of two carbon-carbon bonds. This opens up new possibilities for synthesizing polyfunctional compounds from vinylacetylene.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 10, pp. 2277–2284, October, 1985.