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Palladium-Catalyzed Addition of Arylboronic Acids to N-Benzylisatin
H. Lai, Z. Huang, Q. Wu, Y. Qin*
Sichuan University, Chengdu, P. R. of China
23 March 2009 (online)
The novel tetra-ortho-substituted biphenyl phosphinoimine ligands are synthesized by condensation of the corresponding aldehydes and enantiopure tert-butylsulfinamide, followed by separation of diastereomeric products. A difficult 1,2-addition reaction of arylboronic acids to N-benzylisatin is chosen to evaluate these new ligands via palladium catalysis.