title: NbCl3-catalyzed three-component [2 + 2 + 2] cycloaddition reaction of terminal alkynes, internal alkynes, and alkenes to 1,3,4,5-tetrasubstituted 1,3-cyclohexadienes.
abstract: Three-component [2 + 2 + 2] cycloaddition of terminal alkynes, internal alkynes, and terminal alkenes is achieved using an NbCl(3)(DME) catalyst, leading to 1,3,4,5-substituted 1,3-cyclohexadienes in excellent yields with high chemo- and regioselectivity.
authors.affiliation: Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka, Japan.
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Satoh
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Obora