作者:Fang Ge、Gerald Kehr、Constantin G. Daniliuc、Gerhard Erker
DOI:10.1021/ja4110396
日期:2014.1.8
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.