title: Generation of benzocyclobutadiene derivatives from zirconaindene derivatives.
abstract: Zirconaindene derivatives produced benzocyclobutadiene derivatives in situ in the presence of CuCl and 1,4-naphthoquinone, which afforded their dimers, 6a,10b-dihydrobenzo[a]biphenylenes and dibenzosemibullvalenes or dibenzo[a,e]cycloctenes.
authors.affiliation: Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, P.R. China.
authors.forename: Chao
authors.initials: C
authors.lastname: Chen
authors.forename: Chanjuan
authors.initials: C
authors.lastname: Xi
authors.forename: Yuanyuan
authors.initials: Y
authors.lastname: Liu
authors.forename: Xiaoyin
authors.initials: X
authors.lastname: Hong
mesh_terms: D003503:Cyclobutanes / Q000138:chemical synthesis* / Q000737:chemistry; D007192:Indenes / Q000737:chemistry*; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D015040:Zirconium / Q000737:chemistry*
chemical_list: D003503:Cyclobutanes; D007192:Indenes; D009942:Organometallic Compounds; D015040:Zirconium