R. Soengas, Vera L. M. Silva, D. Ide
Jun 9, 2016
Citations
0
Influential Citations
11
Citations
Journal
Tetrahedron
Abstract
Abstract The Henry-type Barbier addition of bromonitromethane to 3-formylchromone, immediately followed by acetylation and concomitant elimination to afford nitroalkenes in excellent yield and total (E)-selectivity is described. Cycloaddition of N-methylhydrazones with the obtained nitroalkenes gave the corresponding pyrazoles. Among the prepared pyrazoles, derivative 6j, which contains a catechol moiety, showed simultaneously a potent 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging activity and an α-glucosidase inhibitory activities.