The best of the old: The new hydroboration reagent 1 combines the selectivity of disiamylborane (2) with the reactivity towards carbonyls of allyl boranes 3. Conventional oxidative workup conditions are avoided, as facile hydrolysis in protic media provides the corresponding boronic acids with up to 99 % anti-Markovnikov selectivities. A one-pot hydroboration/Suzuki–Miyaura protocol adds to the synthetic value of 1.
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Калинин et al. (2003) studied this question.
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