Active Low-Valent Niobium Catalysts from NbCl5 and Hydrosilanes for Selective Intermolecular Cycloadditions
摘要:
An active niobium catalyst was developed via a simple and nontoxic reduction method from NbCl5/hydrosilane and utilized for the selective [2 + 2 + 2] cycloaddition reaction of terminal alkynes and alkenes/alpha,omega-dienes, to give 1,3-cyclohexadiene derivatives in high yields with excellent chemo- and regioselectivity.
Active Low-Valent Niobium Catalysts from NbCl<sub>5</sub> and Hydrosilanes for Selective Intermolecular Cycloadditions
作者:Yasushi Satoh、Yasushi Obora
DOI:10.1021/jo201757w
日期:2011.10.21
An active niobium catalyst was developed via a simple and nontoxic reduction method from NbCl5/hydrosilane and utilized for the selective [2 + 2 + 2] cycloaddition reaction of terminal alkynes and alkenes/alpha,omega-dienes, to give 1,3-cyclohexadiene derivatives in high yields with excellent chemo- and regioselectivity.