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A radical‐induced 1,2‐α‐boryl migration through radical polar crossover reactions has been described. In this work, in situ formed vinyldiboron “ate” complexes from alkenyl Grignard reagent and diborylalkanes react with commercial radical precursors under light initiation. This three‐component process enables diborylation of alkene. This protocol features high atom economy, a broad substrate scope...
A convenient synthetic route to 2‐heteroaryl‐3‐hydroxybenzo[b]thiophene derivatives via K2CO3‐promoted multicomponent cyclization between o‐halogenated benzaldehyde, 2‐methylquinolines and sulfur powder has been demonstrated. This reaction is performed smoothly under simple conditions to give the corresponding products in moderate to good yields. The resultant 3‐hydroxybenzo[b]thiophenes have been...