Preparation and characterization of chelating monoolefin-aniline ligands and their platinum(II) complexes
作者:Mervyn K. Cooper、Darryl W. Yaniuk
DOI:10.1016/s0022-328x(00)89058-0
日期:1981.12
have been prepared and treated with platinum(II). 1H NMR spectra of the ligands and their platinum(II) complexes have been recorded in order to investigate the bonding between the platinum and the olefin group. This has shown that all the olefins except o-vinyl-N,N-diphenylaniline bond to the platinum through both the olefin and the amine group to give complexes similar to those formed by the chelating
已经制备了许多新的螯合单烯烃-苯胺配体并用铂(II)处理。为了研究铂与烯烃基团之间的键合,已记录了配体及其铂(II)配合物的1 H NMR光谱。这表明除邻-乙烯基-N,N-二苯基苯胺以外的所有烯烃均通过烯烃和胺基团与铂键合,从而产生与螯合单烯烃-膦和-ar基形成的络合物相似的络合物。
Borane-Catalyzed Synthesis of Quinolines Bearing Tetrasubstituted Stereocenters by Hydride Abstraction-Induced Electrocyclization
作者:Alexander F. G. Maier、Sebastian Tussing、Hui Zhu、Garrit Wicker、Pavleta Tzvetkova、Ulrich Flörke、Constantin G. Daniliuc、Stefan Grimme、Jan Paradies
DOI:10.1002/chem.201804777
日期:2018.11.2
stereocenters from vinyl anilines has been developed. Mechanistic studies and quantum‐mechanical investigations support the hydride abstraction/electrocyclization/hydride addition mechanism. The products were obtained in up to 99 % yield with a diastereoselectivity of >99 % in favour for the 3a‐5‐cis isomer.