The C–N borylation of arylhydrazine hydrochlorides with bis(pinacolato)diboron was achieved under photochemical and electrochemical conditions, respectively. This novel and scalable transformation provides two efficient and mild transition-metal-free synthetic routes towards...
A photocatalyzed method for the synthesis of δ-ketonitriles from the reaction of diaryl allyl alcohols with bromoacetonitrile is developed. The result of control experiments indicates that the reaction might proceed via a free radical mechanism and bromoacetonitrile was the source of cyanomethyl radical.
Organoboron compounds are important building blocks in organic synthesis and have been widely applied in materials and pharmaceutical science. The development of practical and concise borylation reactions to synthesize organoboron compounds has always been one of the core topics of organoboron chemistry. Recently, photochemical and electrochemical borylation reactions have gained rapid development and emerged as important methods towards the synthesis of organoboron compounds. The recent research progress concerning photochemical, electrochemical and photoelectrochemical borylation involving aryl and alkyl compounds from the view of energy resources and substrates is reviewed. Additionally, research trends of this area are also discussed.
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