title: [4 + 2] Annulation of Donor-Acceptor Cyclopropanes with Acetylenes Using 1,2-Zwitterionic Reactivity.
abstract: A new process for the [4 + 2] annulation of donor-acceptor cyclopropanes with acetylenes under the effect of anhydrous GaCl3using 1,2-zwitterion reactivity was elaborated. The reaction opens access to substituted dihydronaphthalenes, naphthalenes, and other fused carbocycles. The direction of the reaction can be efficiently controlled by temperature.
authors.affiliation: N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences , 47 Leninsky Prosp., 119991 Moscow, Russian Federation.|Engelhardt Institute of Molecular Biology, Russian Academy of Sciences , 32 Vavilov Street, 119991 Moscow, Russian Federation.
authors.forename: Roman A
authors.initials: RA
authors.lastname: Novikov
authors.affiliation: N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences , 47 Leninsky Prosp., 119991 Moscow, Russian Federation.
authors.forename: Anna V
authors.initials: AV
authors.lastname: Tarasova
authors.affiliation: N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences , 47 Leninsky Prosp., 119991 Moscow, Russian Federation.
authors.forename: Dmitry A
authors.initials: DA
authors.lastname: Denisov
authors.affiliation: N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences , 47 Leninsky Prosp., 119991 Moscow, Russian Federation.
authors.forename: Denis D
authors.initials: DD
authors.lastname: Borisov
authors.affiliation: N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences , 47 Leninsky Prosp., 119991 Moscow, Russian Federation.
authors.forename: Victor A
authors.initials: VA
authors.lastname: Korolev
authors.affiliation: Engelhardt Institute of Molecular Biology, Russian Academy of Sciences , 32 Vavilov Street, 119991 Moscow, Russian Federation.
authors.forename: Vladimir P
authors.initials: VP
authors.lastname: Timofeev
authors.affiliation: N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences , 47 Leninsky Prosp., 119991 Moscow, Russian Federation.
authors.forename: Yury V
authors.identifier: 0000-0002-3433-7571
authors.initials: YV
authors.lastname: Tomilov