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Preparation of 1-ethynyl-o,m-, and p-carboranes from carboranylcopper compounds

Journal Article · · Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States)
DOI:https://doi.org/10.1007/BF00956611· OSTI ID:6417567

Two methods have been developed for the preparation of 1-ethynyl-o-, m-, and p-carboranes: reaction of 1-o-, m-, and p-carboranylcopper derivatives with 1-bromo-2-trimethyl-silylacetylene and subsequent decomposition of the C-Si bond in the trimethylsilylethynyl-carboranes with either ethanolic base or KF in a two-phase system, and, secondly, reaction of 1-o-, m-, and p-carboranylcopper with trans-1-halo-2-iodoethylenes (halogen = Cl or I), followed by dehydrohalogenation of the resulting 1-(trans-..beta..-halovinyl)carboranes with sodium amide in liquid ammonia.

Research Organization:
A.N. Nesmeyanov Institute of Heteroorganic Compounds, Moscow, USSR
OSTI ID:
6417567
Journal Information:
Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States), Journal Name: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States) Vol. 35:6; ISSN BACCA
Country of Publication:
United States
Language:
English

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