New Approach to the Synthesis of 3-Alkyl-1,2-dicarba-closo-dodecaboranes: Reaction of Alkyldichloroboranes with Thallium Dicarbollide

New Approach to the Synthesis of 3-Alkyl-1,2-dicarba-closo-dodecaboranes: Reaction of Alkyldichloroboranes with Thallium Dicarbollide

A number of 3-alkyl-substituted 1,2-dicarba-closo-dodecaboranes were prepared in good yields via the reaction of alkyldichloroboranes, which were generated in situ through hydroboration of the corresponding alkenes with a dichloroborane–dioxane complex, with thallium dicarbollides in anhydrous dichl...

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Veröffentlicht in:Organometallics 2012-04, Vol.31 (7), p.2764-2769
Hauptverfasser: Safronov, Alexander V, Shlyakhtina, Natalia I, Hawthorne, M. Frederick
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container_title Organometallics
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creator Safronov, Alexander V
Shlyakhtina, Natalia I
Hawthorne, M. Frederick
description A number of 3-alkyl-substituted 1,2-dicarba-closo-dodecaboranes were prepared in good yields via the reaction of alkyldichloroboranes, which were generated in situ through hydroboration of the corresponding alkenes with a dichloroborane–dioxane complex, with thallium dicarbollides in anhydrous dichloromethane at room temperature. This reaction also affords insertion products with new thallium dicarbollides prepared from 3-iodo- and 9-iodo-1,2-dicarba-closo-dodecaboranes. The synthesized 3-alkyl-1,2-dicarba-closo-dodecaboranes can be selectively deboronated at the B(6) atom to form the anionic 3-alkyl-7,8-dicarba-nido-undecaborates. All compounds were characterized by NMR and MS techniques.
doi_str_mv 10.1021/om201060e
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title New Approach to the Synthesis of 3-Alkyl-1,2-dicarba-closo-dodecaboranes: Reaction of Alkyldichloroboranes with Thallium Dicarbollide
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