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A facile route provides the title compound 1 in only a few steps starting from bromopentafluorobenzene. Borane 1 is a very reactive hydroborating agent for a range of alkenes and alkynes. Reactions with unsymmetrical substrates display excellent regioselectivity, and interesting selectivities with silicon-containing substrates are rationalized by electronic effects.
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Parks et al. (1995) studied this question.
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