Alkynylboronates represent useful substrates for the direct synthesis of triazole boronic esters by their thermal cycloaddition with azides. A telescoped cycloaddition-cross-coupling protocol is reported and its employment in the synthesis of a small triazole array is disclosed. (C) 2009 Elsevier Ltd. All rights reserved.
A cycloaddition route to novel triazole boronic esters
作者:Jianhui Huang、Simon J. F. Macdonald、Joseph P. A. Harrity
DOI:10.1039/b817052e
日期:——
The [3 + 2] cycloaddition of alkynylboronates and azides provides a direct route to novel triazole boronicesters, the regioselectivity of this process and functionalisation of the heterocycle products is described.