Artículos de revistas
Synthesis of 4H-chromenes promoted by NbCl<inf>5</inf> through multicomponent reaction
Fecha
2015-06-25Registro en:
Tetrahedron Letters, v. 56, n. 30, p. 4476-4479, 2015.
1873-3581
0040-4039
10.1016/j.tetlet.2015.05.099
2-s2.0-84932192674
Autor
Universidade Estadual Paulista (Unesp)
Institución
Resumen
Abstract Multicomponent reactions between phenols, β-ketoesters, and benzaldehydes for the synthesis of 4H-chromenes derivatives promoted by niobium pentachloride (NbCl<inf>5</inf>) were carried out, providing good yields and reasonable reaction times under mild reaction conditions.