Synthesis of novel carborane-containing terminal alkynes |
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Authors: | I. D. Kosenko N. V. Dudarova I. V. Ananyev V. I. Bregadze A. A. Semioshkin |
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Affiliation: | 1.A. N. Nesmeyanov Institute of Organoelement Compounds,Russian Academy of Sciences,Moscow,Russian Federation |
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Abstract: | Lithiation of 1-bromomethyl-o-carborane with lithium diisopropylamide (LDA) in THF results in the in situ formation of 1-lithio-2-bromomethyl-o-carborane, the reaction of which with 3-trimethylsilylprop-2-ynal gives 2-(2-trimethylsilylethynyl)-3,4-(о-carborano)-2,5-dihydrofuran. Subsequent base-catalyzed desilylation furnishes new terminal alkynes of closoand nido-carborane series. |
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