title: An anionic strategy for three- and four-component coupling reactions leading to ketone frameworks based on vinylogous conversion of dilithio ketone alpha,beta-dianions.
abstract: [reaction: see text] Ketone alpha,delta-dianions are generated by vinylogous extension of ketone alpha,beta-dianions with alkenes such as vinylarenes, vinylsilanes, and vinyl sulfides, which then undergo reactions at the delta and alpha positions with different electrophiles, creating ketone frameworks. This work represents a cascade-type anion method that achieved three- and four-carbon component assembly reactions leading to ketones.
authors.affiliation: Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan.
authors.forename: Shin-ya
authors.initials: SY
authors.lastname: Yamato
authors.forename: Go-hei
authors.initials: GH
authors.lastname: Yamamura
authors.forename: Mitsuo
authors.initials: M
authors.lastname: Komatsu
authors.forename: Masashi
authors.initials: M
authors.lastname: Arai
authors.forename: Takahide
authors.initials: T
authors.lastname: Fukuyama
authors.forename: Ilhyong
authors.initials: I
authors.lastname: Ryu