Issue Date: January 25, 2016
Crafty Cobalt Polyborylations
Precious-metal catalysts such as iridium and rhodium are widely used to promote C–H borylation reactions, in which a boronate group is installed in place of a hydrogen atom. The aryl boronate product is a useful intermediate that can in turn be used in cross-coupling and other reactions to complete functionalization of the C–H bond. Although functionalizing aryl ring carbons with groups such as boron pinacolate is well-known, less common is achieving addition of the boronate . . .
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