title: An air-stable half-sandwich Ru(II) complex as an efficient catalyst for [3+2] annulation of 2-arylcyclo-2-enones with alkynes.
abstract: An air-stable half-sandwich ruthenium(II) complex, [Ru(p-cymene)(MeCN)3](SbF6)2, was synthesized and characterized. It exhibited unique catalytic ability in a [3+2] annulation reaction of 2-arylcyclo-2-enones with internal alkynes via C(sp(2))-H/alkene functionalization, which offered a rapid and atom-economical methodology to construct various synthetically challenging spiro carbocyclic indenes bearing a quaternary carbon.
authors.affiliation: Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China. gg2b@scu.edu.cn jsyou@scu.edu.cn.
authors.forename: Yinsong
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China. gg2b@scu.edu.cn jsyou@scu.edu.cn.
authors.forename: Zhen
authors.initials: Z
authors.lastname: He
authors.affiliation: Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China. gg2b@scu.edu.cn jsyou@scu.edu.cn.
authors.forename: Shiqing
authors.initials: S
authors.lastname: Li
authors.affiliation: Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China. gg2b@scu.edu.cn jsyou@scu.edu.cn.
authors.forename: Junbin
authors.initials: J
authors.lastname: Tang
authors.affiliation: Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China. gg2b@scu.edu.cn jsyou@scu.edu.cn.
authors.forename: Ge
authors.initials: G
authors.lastname: Gao
authors.affiliation: Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China. gg2b@scu.edu.cn jsyou@scu.edu.cn.
authors.forename: Jingbo
authors.initials: J
authors.lastname: Lan
authors.affiliation: Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China. gg2b@scu.edu.cn jsyou@scu.edu.cn.
authors.forename: Jingsong
authors.initials: J
authors.lastname: You