作者:Piyush Kumar Verma、K. Sujit Prasad、Dominic Varghese、K. Geetharani
DOI:10.1021/acs.orglett.0c00038
日期:2020.2.21
cobalt-complex-catalyzed borylation of a wide range of alkyl halides with a diboron reagent (B2pin2 or B2neop2) has been developed under mild reaction conditions, demonstrating the first cobalt-mediated cross-coupling with alkyl electrophiles. This protocol allows alkyl boronic esters to be accessed from alkyl halides, including alkyl chlorides, which were used rarely as coupling partners. Mechanistic
在温和的反应条件下,已开发出钴配合物催化的多种烷基卤化物与二硼试剂(B2pin2或B2neop2)的硼化反应,这证明了钴与烷基亲电试剂的首次交联。该协议允许从烷基卤化物(包括烷基氯化物)中获取烷基硼酸酯,而烷基卤化物很少用作偶联伙伴。机理研究表明,烷基中间体可能参与了该钴介导的催化循环。