Efficient Aerobic Wacker Oxidation of Styrenes Using Palladium Bis(isonitrile) Catalysts
作者:Anu Naik、Liu Meina、Manfred Zabel、Oliver Reiser
DOI:10.1002/chem.200901560
日期:2010.2.1
The palladium‐catalyzed aerobicoxidation of alkenes and especially styrenes (Wackeroxidation) by using chiral pseudo C2‐symmetrical bis(isonitrile) ligands in the absence of further cocatalysts gives rise to methyl ketones in a highly chemoselective manner. The palladiumbis(isonitrile) catalyst was characterized by NMR spectroscopy and X‐ray structure analysis, revealing a dissymmetric coordination
Iron-Catalyzed Highly Enantioselective Hydrogenation of Alkenes
作者:Peng Lu、Xiang Ren、Haofeng Xu、Dongpo Lu、Yufeng Sun、Zhan Lu
DOI:10.1021/jacs.1c04773
日期:2021.8.18
for the first time an iron-catalyzed highlyenantioselectivehydrogenation of minimally functionalized 1,1-disubstituted alkenes to accesschiral alkanes with full conversion and excellent ee. A novel chiral 8-oxazoline iminoquinoline ligand and its iron complex have been designed and synthesized. This protocol is operationally simple by using 1 atm of hydrogen gas and shows good functional group tolerance
Regio- and Enantioselective Cobalt-Catalyzed Sequential Hydrosilylation/Hydrogenation of Terminal Alkynes
作者:Jun Guo、Xuzhong Shen、Zhan Lu
DOI:10.1002/anie.201610121
日期:2017.1.9
sequential hydrosilylation/hydrogenation of alkynes was developed to afford chiral silanes. This one‐pot method is operationally simple and atom economic. It makes use of relatively simple and readily available starting materials, namely alkynes, silanes, and hydrogen gas, to construct more valuable chiral silanes. Primary mechanistic studies demonstrated that highly regioselective hydrosilylation of alkynes
Iron-Catalyzed Asymmetric Hydrosilylation of 1,1-Disubstituted Alkenes
作者:Jianhui Chen、Biao Cheng、Minyi Cao、Zhan Lu
DOI:10.1002/anie.201411884
日期:2015.4.7
The highly regio‐ and enantioselective iron‐catalyzed anti‐Markovnikov hydrosilylation of 1,1‐disubstituted aryl alkenes was developed using iminopyridine oxazoline ligands to afford chiral organosilanes. Additional derivatization of these products lead to chiral organosilanols, cyclic silanes, phenol derivatives, and 3‐substituted 2,3‐dihydrobenzofurans.