Two contrasting ethynyl hydroboration pathways in the formation of a novel tris-hydroboration product from reaction of dimesitylborane with 2,5-diethynylpyridineElectronic supplementary information (ESI) available: NMR data for 4, rotatable 3-D molecular structure diagrams of optimised geometries in CHIME format and energy data for optimised geometries. See http://www.rsc.org/suppdata/cc/b3/b316250h/
Results of research on the cleavage of triptycene and quinolizinium ions by alkali metals, and on the decomposition of substituted benzoyl peroxides and of cumylperacetate are reported
Two contrasting ethynyl hydroboration pathways in the formation of a novel tris-hydroboration product from reaction of dimesitylborane with 2,5-diethynylpyridineElectronic supplementary information (ESI) available: NMR data for 4, rotatable 3-D molecular structure diagrams of optimised geometries in CHIME format and energy data for optimised geometries. See http://www.rsc.org/suppdata/cc/b3/b316250h/
作者:Christopher D. Entwistle、Andrei S. Batsanov、Judith A. K. Howard、Mark A. Fox、Todd B. Marder
DOI:10.1039/b316250h
日期:——
Reaction of 2,5-diethynylpyridine with dimesitylborane, [(Mes)2BH]2
(Mes = mesityl = 2,4,6-Me3C6H2), gave the unexpected tris-hydroboration product 1-(Mes)2B}-2-[Z-1-(Mes)2B}ethylidene]-5-[E-(Mes)2B}vinyl]-1,2-dihydropyridine, which has been structurally characterised by single-crystal X-ray diffraction.