NbCl5-promoted the synthesis of 4H-pyrans through multicomponent reaction
作者:Mayara de Souza Siqueira、Luiz Carlos da Silva-Filho
DOI:10.1016/j.tetlet.2016.10.008
日期:2016.11
Multicomponentreactions between β-ketoesters and benzaldehydes for the synthesis of 4H-pyran derivatives promoted by niobiumpentachloride (NbCl5) were carried out, providing good yields and reasonable reaction times under mild reaction conditions.