Near-IR luminescent neodymium complexes: spectroscopic probes for hydroamination catalysis
作者:Stacey D. Bennett、Simon J. A. Pope、Benjamin D. Ward
DOI:10.1039/c3cc42923g
日期:——
Neodymium complexes bearing the sensitising bis(oxazolinylphenyl)amine (BOPA) ligands have been prepared, and analysed spectroscopically under both catalytic and pseudo-catalytic conditions with respect to the intramolecular hydroamination of an aminoalkene, providing a direct means of monitoring binding events and relative space around the metal centre.
Facile synthesis of C2-symmetric tridentate bis(thiazoline) and bis(oxazoline) ligands and their application in the enantioselective Henry reaction
作者:Shao-Feng Lu、Da-Ming Du、Shi-Wei Zhang、Jiaxi Xu
DOI:10.1016/j.tetasy.2004.09.011
日期:2004.11
A series of novel C2-symmetricbis(thiazoline) ligands with a diphenylamine backbone as a linkage between two thiazoline rings were synthesized by the use of the simple reagent phosphorus pentasulfide. Their application in the catalytic asymmetric Henry reaction of α-keto esters was investigated with comparison to the corresponding bis(oxazoline) ligands. Cu(II)–bis(oxazoline) complexes furnished moderate