Negishi cross-coupling of secondary alkylzinc halides with aryl/heteroaryl halides using Pd–PEPPSI–IPent
作者:Selçuk Çalimsiz、Michael G. Organ
DOI:10.1039/c0cc04835f
日期:——
Pd-PEPPSI-IPent has proven to be an excellent catalyst for the Negishi cross-couplingreaction of secondary alkylzinc reagents with a wide variety of aryl/heteroarylhalides. Importantly, beta-hydride elimination/migratory insertion of the organometallic leading to the production of isomeric coupling products has been significantly reduced using the highly-hindered Ipent ligand.