Phosphino-amine (PN) Ligands for Rapid Catalyst Discovery in Ruthenium-Catalyzed Hydrogen-Borrowing Alkylation of Anilines: A Proof of Principle
作者:Lewis Marc Broomfield、Yichen Wu、Eddy Martin、Alexandr Shafir
DOI:10.1002/adsc.201500562
日期:2015.11.16
A general synthetic protocol for the synthesis of simple phosphino-amine (PN) ligands is described with 19 ligands being isolated in good yields. High-throughput ligand screening uncovered the success of two of these ligands for aromatic amine alkylations via ruthenium-catalyzedhydrogen borrowing reactions. The combination of N,N′-bis(diphenylphosphino)-N,N′-dimethylpropylenediamine with a ruthenium(II)