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Article Dans Une Revue Chemical Communications Année : 2022

Hydroboration of vinyl halides with mesitylborane: a direct access to (mesityl)(alkyl)haloboranes

Résumé

The direct access to (mesityl)(alkyl)haloboranes (Mes(Alk)BX) (X = Br, Cl) from mesitylborane dimer and vinyl halides is presented. The involved hydroboration reaction results in the transfer of the halogen atom from the carbon of the starting material to the boron in the final product. The reactivity of the obtained Mes(Alk)BX has been evaluated for the synthesis of the bipyridyl boronium cations and 2-arylpyridine derived boron N^C-chelates. The formation mechanism of Mes(Alk)BX is apprended by DFT-calculations which shows that their formation involves two concomitant pathways derived from the regioslectivity of the hydroboration reaction.

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Chimie
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hal-03539282 , version 1 (28-03-2022)

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Marc Devillard, Marie Cordier, Thierry Roisnel, Chiara Dinoi, Iker Del rosal, et al.. Hydroboration of vinyl halides with mesitylborane: a direct access to (mesityl)(alkyl)haloboranes. Chemical Communications, 2022, 58 (10), pp.1589-1592. ⟨10.1039/D1CC06365K⟩. ⟨hal-03539282⟩
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