title: Cyclopropane formation under frustrated Lewis pair conditions.
abstract: Reaction of the -CH2OSiMe3 substituted allyldimesitylphosphane 5 with HB(C6F5)2 resulted in a hydroboration/(C6F5)2BOSiMe3 elimination sequence to give the phosphinomethyl substituted cyclopropane derivative , probably via a phosphiranium type intermediate. Addition of B(C6F5)3 to compound gave the stable phosphiranium/borate zwitterion that was isolated and characterized by X-ray diffraction.
authors.affiliation: Organisch-Chemisches Institut, Universität Münster, Corrensstrasse 40, 48149 Münster, Germany. erker@uni-muenster.de.
authors.forename: Sergei
authors.initials: S
authors.lastname: Krupski
authors.affiliation: Organisch-Chemisches Institut, Universität Münster, Corrensstrasse 40, 48149 Münster, Germany. erker@uni-muenster.de.
authors.forename: Gerald
authors.initials: G
authors.lastname: Kehr
authors.affiliation: Organisch-Chemisches Institut, Universität Münster, Corrensstrasse 40, 48149 Münster, Germany. erker@uni-muenster.de.
authors.forename: Constantin G
authors.initials: CG
authors.lastname: Daniliuc
authors.affiliation: Organisch-Chemisches Institut, Universität Münster, Corrensstrasse 40, 48149 Münster, Germany. erker@uni-muenster.de.
authors.forename: Gerhard
authors.initials: G
authors.lastname: Erker
mesh_terms: D003521:Cyclopropanes / Q000138:chemical synthesis*; D058116:Lewis Acids / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D014961:X-Ray Diffraction
chemical_list: D003521:Cyclopropanes; D058116:Lewis Acids; C030797:cyclopropane