Solvent-free NbCl5 catalyzed condensation of 1,3-dicarbonyl compounds and aldehydes: a facile synthesis of trisubstituted alkenes
作者:J.S. Yadav、Dinesh C. Bhunia、Vinay K. Singh、P. Srihari
DOI:10.1016/j.tetlet.2009.03.015
日期:2009.5
A simple preparation of trisubstituted alkenes by condensation of β-diketones or β-ketoesters with aldehydes in presence of NbCl5 as a Lewis acid catalyst in solvent-free conditions is described.