Abstract
Treatment of methyl (Z)-2-alken-4-ynoates with the strong Lewis acid tris(pentafluorophenyl) borane, B(C6F5)3, yield substituted zwitterionic pyrylium borate species via an intramolecular 6-endo-dig cyclisation reaction.
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CITATION STYLE
APA
Wilkins, L. C., Hamilton, H. B., Kariuki, B. M., Hashmi, A. S. K., Hansmann, M. M., & Melen, R. L. (2016). Lewis acid-base 1,2-addition reactions: Synthesis of pyrylium borates from en-ynoate precursors. Dalton Transactions, 45(14), 5929–5932. https://doi.org/10.1039/c5dt03340c
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