Abstract
Described here is an enantioselective approach of making chiral, β-substituted homoallylic organoboronic esters. In the presence of LiOtBu and a catalytic amount of silver salt, commercial bis[(pinacolato)boryl]methane participated in the iridium-catalyzed asymmetric allylation reactions, delivered a “CH2B(pin)” group, and yielded the title compounds from allylic carbonates. The synthetic utility of the prepared chiral organoboronates was demonstrated by their conversion to other important classes of compounds.
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