“…In recent decades, transition‐metal catalyzed borylation reactions have been extensively studied, aiming at lower catalyst loading, better functional group tolerance and stereoselectivity, and milder reaction conditions. [ 2‐12 ] The most common methods include: 1) borylation of organic halides; [ 13‐18 ] 2) direct C—H borylation; [ 19‐23 ] 3) boryl addition to unsaturated organic compounds, such as alkenes, alkynes, allenes, [ 24‐35 ] aldehydes, ketones, [ 36 ] and α , β ‐unsaturated compounds. [ 37‐40 ] In fact, noncatalytic methodologies are an important complement and should not be ignored.…”