title: Carbanion-Induced [3 + 2] Annulation of Donor-Acceptor Cyclopropanes.
abstract: The [3 + 2] annulation of donor-acceptor cyclopropanes and ylidenemalonates, in which an α-p-tosyl carbanion functions as a donor substituent, is described. A notable feature of the annulation is that the auxiliary p-tosylmethyl group can be removed via a cycloreversion during the tandem annulation sequence.
authors.affiliation: Department of Synthetic Organic Chemistry, Institute of Biomedical & Health Sciences, Hiroshima University , 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan.
authors.forename: Michiko
authors.initials: M
authors.lastname: Sasaki
authors.affiliation: Department of Synthetic Organic Chemistry, Institute of Biomedical & Health Sciences, Hiroshima University , 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan.
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Kondo
authors.affiliation: Department of Synthetic Organic Chemistry, Institute of Biomedical & Health Sciences, Hiroshima University , 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan.
authors.forename: Takuya
authors.initials: T
authors.lastname: Nishio
authors.affiliation: Department of Synthetic Organic Chemistry, Institute of Biomedical & Health Sciences, Hiroshima University , 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan.
authors.forename: Kei
authors.initials: K
authors.lastname: Takeda