title: Synthesis of hindered 1-arylnaphthalene derivatives via ring expansion of benzocyclobutenones.
abstract: [reaction: see text] Various 1-arylnaphthalenes, including highly substituted derivatives, are accessible via a simple two-step process. Treatment of alkenylbenzocyclobutenones with aryllithium provides two-carbon expanded dihydronaphthalenes, which are readily dehydrated by MsCl-Et(3)N or PPTS in MeOH.
authors.affiliation: Department of Chemistry, Tokyo Institute of Technology, and CREST, Japan Science and Technology (JST) Corporation, O-okayama, Meguro-ku, Tokyo 152-8551, Japan.
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Hamura
authors.forename: Makoto
authors.initials: M
authors.lastname: Miyamoto
authors.forename: Takashi
authors.initials: T
authors.lastname: Matsumoto
authors.forename: Keisuke
authors.initials: K
authors.lastname: Suzuki