Metal–Organic Frameworks with Phosphonate Monoester Linkers for Catalytic C(sp2)–H Borylation of Alkenes

An isoreticular metal–organic framework (MOF) series was constructed from nickel or cobalt nodes, phosphonate monoester, and bipyridine linkers. The cobalt-containing MOFs were found to catalyze the dehydrogenative C–H borylation of alkenes under mild conditions. This process selectively generates vinyl boronate without the formation of alkyl boronate byproducts and is insensitive to air, enabling large-scale preparation of the target products with isolated yields of over 80%.