Reactions of Boroles Formed by 1,1-Carboboration
作者： Fang Ge , Gerald Kehr , Constantin G. Daniliuc , Gerhard Erker
DOI: 10.1021/OM501085J
关键词:
摘要: The borole 2, obtained by 1,1-carboboration of phenylbis(trimethylsilylethynyl)borane with B(C6F5)3, undergoes [4 + 2] cycloaddition reactions 1-pentyne and ethene to give the 7-borabicyclo[2.2.1]heptadiene -heptene derivatives, respectively. 2 reacts pyridine at room temperature a pyridine-stabilized borolium ion. reaction proceeds phenyl migration Me3SiF elimination. Carbon monoxide rapidly unusual ketene derivative 19 Me3Si across ring system.
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