Reaction of Perfluoroiodoalkanes with Trimethylstannylalkoxyacetylenes. -Treatment of the title compounds (I) and (V) with (II) leads to a mixture of isomeric adducts such as (III)/(IV) or (VI)/(VII). Acidolysis of the latter and (IV) gives the olefins (VIII)/(IX) and (X) , whereas thermolysis of (III) yields the corresponding perfluoroacetylene via Me3SnI-elimination. -(KUVALDIN, K. V.; KLYUCHINSKII, S. A.; ZAVGORODNII, V. S.; UTSAL', V. A.; LIEPIN'SH, Z. Z.; PETROV, A. A.; Zh. Obshch. Khim. 64 (1994) 1, 77-80; S.-Peterburgskii tekhnol. univ., St. Petersburg, Russia; RU)

ChemInform Abstract The conditions of the reaction of the alkynylstannane (I) with the perfluoropropyl iodide (II) to give tert-butylperfluoropropylacetylene (III) are optimized.

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