A [4+2] cycloaddition/retro-cycloaddition route to functionalised aromatic boronic esters is outlined. A range of electron deficient dienes (2-pyrones) and dienophiles (alkynylboronates) were found to participate in the reaction. Furthermore, high levels of regiocontrol could be obtained in this process and a consistent mode of alkyne insertion has been uncovered. © 2007 Elsevier Ltd. All rights reserved.
CITATION STYLE
Delaney, P. M., Browne, D. L., Adams, H., Plant, A., & Harrity, J. P. A. (2008). A 2-pyrone cycloaddition route to functionalised aromatic boronic esters. Tetrahedron, 64(5), 866–873. https://doi.org/10.1016/j.tet.2007.08.118
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