Axially Chiral NHC−Pd(II) Complexes in the Oxidative Kinetic Resolution of Secondary Alcohols Using Molecular Oxygen as a Terminal Oxidant
作者:Tao Chen、Jia-Jun Jiang、Qin Xu、Min Shi
DOI:10.1021/ol063061w
日期:2007.3.1
see text] Axially chiral N-heterocyclic carbene (NHC) Pd(II) complexes were prepared from optically active 1,1'-binaphthalenyl-2,2'-diamine (BINAM) and H8-BINAM and applied in the oxidativekineticresolution of secondaryalcoholsusing molecular oxygen as a terminal oxidant. The corresponding sec-alcohols can be obtained in good yields with moderate to good enantioselectivities.
Synthesis of novel axially chiral Rh–NHC complexes derived from BINAM and application in the enantioselective hydrosilylation of methyl ketones
作者:Wei-Liang Duan、Min Shi、Guo-Bin Rong
DOI:10.1039/b309185f
日期:——
Novel axially chiral Rh N-heterocyclic carbene complexes were prepared from axially dissymmetric 1,1â²-binaphthalenyl-2,2â²-diamine and applied in the Rh-catalyzed enantioselective hydrosilylation of methyl ketones. The corresponding sec-alcohols can be obtained in high yields with good to excellent ee.
A novel cis-chelated Pd(II)–NHC complex for catalyzing Suzuki and Heck-type cross-coupling reactions
作者:Qin Xu、Wei-Liang Duan、Zhi-Yu Lei、Zhi-Bin Zhu、Min Shi
DOI:10.1016/j.tet.2005.09.010
日期:2005.11
A novel Pd(II)–NHC complex, which has a ‘normal’ cis-chelating, bidentate structure is fairly effective in Suzuki and Heck-type cross-coupling reaction to give the products in good to excellent yields in most cases.
Fine Tuning of Chiral Bis(N-heterocyclic carbene) Palladium Catalysts for Asymmetric Suzuki–Miyaura Cross-Coupling Reactions: Exploring the Ligand Modification
作者:Dao Zhang、Jueqin Yu
DOI:10.1021/acs.organomet.0c00036
日期:2020.4.27
aryl–aryl cross-couplingreactions of arylboronic acids and aryl halides. The enantioselectivity of the biaryl products was greatly improved within 24 h (up to 74% ee) when complexes 7a–g were used as catalysts. The results show that for these types of bis(NHC) palladium catalysts the structural characters of the chiral scaffolds play a decisive role in the enantioselectivities of cross-coupling reactions
The Use of Chiral BINAM NHC-Rh(III) Complexes in Enantioselective Hydrosilylation of 3-Oxo-3-arylpropionic Acid Methyl or Ethyl Esters
作者:Qin Xu、Xingxing Gu、Sijia Liu、Qinyu Dou、Min Shi
DOI:10.1021/jo062453d
日期:2007.3.1
Axially chiral BINAM N-heterocyclic carbene (NHC)-Rh(III) complexes were applied in the enantioselective hydrosilylation of 3-oxo-3-arylpropionic acid methyl or ethyl esters. The reduction products 3-hydroxy-3-arylpropionic acid methyl or ethyl esters could be obtained in good yields with good to excellent enantioselectivities under mild conditions.