mild conditions, and the reaction of substituted benzoxazoles, oxazole and benzothiazole occurred even at room temperature. The substrate scope of the reaction was turned out to include mono-, di- and trisubstituted alkenyl bromides. To validate the scalability of this method, 5-Methyl-2-(prop-1-en-2-yl)benzoxazole (3c) was prepared on one-gram scale at room temperature.
Ligand promoted Pd-catalyzed dehydrogenative alkenylation of hetereoarenes
作者:Wei-Chih Lee、Ting-Hsuan Wang、Tiow-Gan Ong
DOI:10.1039/c3cc48750d
日期:——
An efficient Pd-catalyzed cross-dehydrogenative coupling of heteroarenes with alkenes has been developed. This alkenylation paradigm encompasses a wide range of substrates and provides a straightforward approach toward C2-E-alkenylated azole motifs.