Kuiling Ding
Chinese Academy of Sciences
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Featured researches published by Kuiling Ding.
Chemical Reviews | 2009
Zheng Wang; Gang Chen; Kuiling Ding
2.2.6. Poly-Carbene Coordination Polymers 335 2.3. Oxidation 335 2.3.1. Poly-N-Ligand Coordination Polymers 335 2.3.2. Poly-Carboxylate Polymers 336 2.3.3. Lanthanide Disulfonate Polymers 338 2.4. Polymerization 338 2.5. Ring Opening of Epoxides 340 2.6. Miscellaneous 340 3. Self-Supported Chiral Catalysts 342 3.1. Background 342 3.2. Enantioselective Hydrogenation 344 3.3. Enantioselective Oxidations 347 3.3.1. Enantioselective Epoxidation 347 3.3.2. Enantioselective Sulfoxidation 349 3.4. Asymmetric C-C Bond-Formation Reactions 350 3.4.1. Michael Addition 350 3.4.2. Carbonyl-Ene Reaction 350 3.4.3. Addition of Diethylzinc to Aldehydes 351 3.5. Asymmetric Ring Opening of Epoxide 353 3.6. Miscellaneous 353 4. General Considerations in Self-Supported Catalyst Design 354
Angewandte Chemie | 2013
Baoguo Zhao; Zhaobin Han; Kuiling Ding
The organometallic approach is one of the most active topics in catalysis. The application of NH functionality in organometallic catalysis has become an important and attractive concept in catalyst design. NH moieties in the modifiers of organometallic catalysts have been shown to have various beneficial functions in catalysis by molecular recognition through hydrogen bonding to give catalyst-substrate, ligand-ligand, ligand-catalyst, and catalyst-catalyst interactions. This Review summarizes recent progress in the development of the organometallic catalysts based on the concept of cooperative catalysis by focusing on the NH moiety.
Angewandte Chemie | 2012
Zhaobin Han; Liangce Rong; Jiang Wu; Lei Zhang; Zheng Wang; Kuiling Ding
Two birds with one stone: the simultaneous production of two important bulk chemicals, methanol and ethylene glycol, from CO(2) and ethylene oxide has been achieved under mild conditions by the highly efficient homogeneous catalytic hydrogenation of ethylene carbonate in the presence of a (PNP)Ru(II) catalyst.
Archive | 2008
Kuiling Ding; Yasuhiro Uozumi
Preface An Overview of Heterogeneous Asymmetric Catalysis Heterogeneous Enantioselective Catalysis Using Inorganic Supports Heterogeneous Enantioselective Catalysis Using Organic Polymeric Supports Enantioselective Catalysis Using Dendrimer Supports Enantioselective Catalysis in Fluorous Solvents Enantioselective Catalysis in Aqueous Media Heterogeneous Enantioselective Catalysis in Ionic Liquids or Supercritical CO2 Supported Organocatalysts for Enantioselective Reactions Self-supported Chiral Catalysts for Enantioselective Reactions Heterogeneous Enantioselective Hydrogenation on the Metal Surface Modified by Chiral Molecules Heterogeneous Diastereoselective Catalysis Industrial Research and Application of Heterogeneous Asymmetric Catalysis
Angewandte Chemie | 2009
Zhaobin Han; Zheng Wang; Xumu Zhang; Kuiling Ding
From imines to amines through catalysis by Ir(I) complexes of a new type of P,N ligand (see scheme): This reaction affords the corresponding optically active amines with up to 98 % ee and has also been used with perfect stereoselectivity in the asymmetric synthesis of sertraline (1), an important antidepressant chiral drug.
Chemistry-an Asian Journal | 2009
Kuiling Ding; Zhaobin Han; Zheng Wang
This Focus Review highlights the exciting results obtained in the area of asymmetric catalysis using spirobiindane- or spirobifluorene-based chiral ligands. The spiro, mono, and bidentate ligands have been successfully applied in a wide range of transition-metal-catalyzed asymmetric reactions, including hydrogenations, carbon-carbon and carbon-heteroatom coupling reactions, with superior or comparable enantioselectivities to those obtained by using the related ligands bearing other backbones, thus proving that the spiro skeleton is a type of privileged structure for chiral ligand design. It is expected that the spiro concept for chiral ligand design will stimulate the future efforts to understand the features that account for their broad applicability and to apply this understanding to seek new privileged chiral ligands and catalysts.
Angewandte Chemie | 2015
Lei Zhang; Zhaobin Han; Xiaoyu Zhao; Zheng Wang; Kuiling Ding
A highly efficient catalyst system based on ruthenium-pincer-type complexes has been discovered for N-formylation of various amines with CO2 and H2, thus affording the corresponding formamides with excellent productivity (turnover numbers of up to 1,940,000 in a single batch) and selectivity. Using a simple catalyst recycling protocol, the catalyst was reused for 12 runs in N,N-dimethylformamide production without significant loss of activity, thus demonstrating the potential for practical utilization of this cost-effective process. A one-pot two-step procedure for hydrogenation of CO2 to methanol via the intermediacy of formamide formation has also been developed.
Angewandte Chemie | 2012
Xiaoming Wang; Zhaobin Han; Zheng Wang; Kuiling Ding
Recently, the chemistry of chiral aromatic spiroketals has received much attention because they are key substructures in biologically active natural products, pharmaceuticals, and chiral ligands in transition-metal-catalyzed reactions. Although several methods for the preparation of aromatic spiroketals have been reported, the direct catalytic, enantioselective synthesis of aromatic spiroketals has not yet been achieved. On the other hand, transition-metalcatalyzed asymmetric hydrogenations have long held a respected position in modern organic synthesis. In particular, the iridium-catalyzed asymmetric hydrogenation of the C=C bonds of either functionalized or unfunctionalized olefin derivatives has lately been an important topic in asymmetric catalysis. We have recently reported a class of highly efficient iridium(I) catalyst complexes with spiro[4.4]-1,6nonadiene-based chiral phosphine–oxazoline ligands (SpinPHOX, 1) for the enantioselective hydrogenation of N-aryl or alkyl imines and a-aryl-b-substituted acrylic acids. Herein, we report the first catalytic enantioselective synthesis of aromatic spiroketals 2 through the SpinPHOX/Ir-promoted asymmetric hydrogenation of a,a’-bis(2-hydroxyarylidene) ketones and spiroketalization of hydrogenation products.
Journal of the American Chemical Society | 2014
Xiaoming Wang; Peihua Guo; Zhaobin Han; Xubin Wang; Zheng Wang; Kuiling Ding
Exceptionally high activity (with a TON up to 4750) of the palladium complexes of SKP ligand was discovered in the catalysis of asymmetric allylic amination of MBH adducts with aromatic amines. A comprehensive mechanistic study indicates that the unique structural features of the SKP ligand, with a long P···P distance in its solid-state structure, were favorable for allowing two P atoms to play a bifunctional role in the catalysis. Herein, one of the P atom forms a C-P σ-bond with the terminal carbon atom of allyl moiety as a Lewis base, and an alternative P atom coordinates to Pd atom. The cooperative action of organo- and organometallic catalysis discovered in the present catalytic system is most likely responsible for its high activity, as well as excellent regio- and enantioselectivities. The mechanism disclosed in the present catalytic system is distinct from most of the currently recognized mechanisms for Pd-catalyzed allylic substitutions.
Chemistry: A European Journal | 2002
Yu Yuan; Jiang Long; Jie Sun; Kuiling Ding
This paper describes the successful development of a group of highly efficient chiral tridentate titanium catalysts for hetero-Diels-Alder reaction of Danishefskys diene and a variety of aldehydes through ligand and additive diversity. Dramatically synergetic effect of carboxylic acid additives and influence of substituent in chiral Schiff base ligands on the enantioselectivities of the reaction are reported. It was found that a chiral drug Naproxen (A21) was a highly efficient additive for Ti-catalyzed HDA reaction, affording 2-substituted 2,3-dihydro-4H-pyran-4-one in up to 97 % ee and >99 % yields. Quantitative study of the effect of chiral carboxylic acid A21 revealed that the reaction could be accelerated by one order of magnitude. Another interesting feature of present catalytic system is the existence of significant positive nonlinear effect, which indicates that the heterochiral Schiff base-titanium complexes may have higher stability than their homochiral counterparts. As a result, the homochiral Schiff base-titanium complexes with higher ee than that of starting ligand will react with carboxylic acid additive to form the more active species and predominate the catalytic process. The isolation and characterization of stable heterochiral ((+/-)-L1)2Ti complex has also been successful, which strongly supported the explanation for positive nonlinear effect observed in the catalytic system.