Journal
TETRAHEDRON LETTERS
Volume 46, Issue 4, Pages 627-630Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2004.11.145
Keywords
diphenylboron cation; B-11 NMR; ab initio calculation
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Treatment of diphenylchloroborane with 1 equiv of pyridine or pyridine-N-oxide in CD2Cl2 formed the corresponding 1:1 adduct, which gave tricoordinate diphenylboron cation by electrophilic abstraction of chloride ion with the strong Lewis acid, SbCl5. The experimental B-11 chemical shifts were in good agreement with the ab initio calculation results and the optimized structures were well explicable by B-11, C-13, and Sb-121 NMR spectroscopy. (C) 2004 Elsevier Ltd. All rights reserved.
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