Docherty, Jamie H.; Nicholson, Kieran; Dominey, Andrew P.; Thomas, Stephen P. published the artcile< A Boron-Boron Double Transborylation Strategy for the Synthesis of gem-Diborylalkanes>, Product Details of C12H20O6, the main research area is gem alkyl diboronate preparation terminal alkyne borylation hydroborane catalyst; diborylation transborylation mechanism alkyne hydroborane catalyst preparation gem diboronate.
1,1-Diborylalkanes RCH2CH(Bpin)2 were prepared by double borylation of α-alkynes catalyzed by 9-borabicyclononane via transborylation pathway. Olefin hydroboration reactions provide efficient access to synthetically versatile and easily handled organoboronic esters. In this study, we demonstrate that the com. available organoborane reagent 9-borabicyclo[3.3.1]nonane (H-B-9-BBN) can serve as a catalyst for the sequential double hydroboration of alkynes using pinacolborane (HBpin). This strategy, which is effective for a wide range of terminal alkynes, is predicated upon a key C(sp3)-B/B-H transborylation reaction. Transition-state thermodn. parameters and 10-boron-isotopic labeling experiments are indicative of a σ-bond metathesis exchange pathway.
ACS Catalysis published new progress about Alkynes, α- Role: RCT (Reactant), RACT (Reactant or Reagent). 4064-06-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C12H20O6, Product Details of C12H20O6.
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