title: Borole formation by 1,1-carboboration.
abstract: Bis(trimethylsilylethynyl)diphenylaminoborane was reacted with the strong Lewis acid B(C6F5)3 at ambient temperature to give the borole 9 admixed with a small amount of its thermal follow-up product 12. Compound 9 was subsequently stabilized by adduct formation with pyridine (10). Treatment of bis(trimethylsilylethynyl)phenylborane with B(C6F5)3 gave the borole 14, which reacted with 3-hexyne to give the [4 + 2] cycloaddition product 15.
authors.affiliation: Organisch-Chemisches Institut, Universität Münster , Corrensstrasse 40, D-48149 Münster, Germany.
authors.forename: Fang
authors.initials: F
authors.lastname: Ge
authors.forename: Gerald
authors.initials: G
authors.lastname: Kehr
authors.forename: Constantin G
authors.initials: CG
authors.lastname: Daniliuc
authors.forename: Gerhard
authors.initials: G
authors.lastname: Erker