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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| Institution: | 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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