1
|
Gajecki L, Sawicka B, Berg DJ, Oliver AG. Synthesis and Magnetic Studies of Two Neutral, Bis-Ligand Fe(II) Complexes Containing Carbazole- Bis(tetrazole) Ligands. Inorg Chem 2023. [PMID: 37478316 DOI: 10.1021/acs.inorgchem.3c01167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2023]
Abstract
Previously reported carbazole-bis(tetrazole) (CzTR) ligands (where R = iPr and CH2-2,4,6-C6H2Me3) were used to synthesize air-stable, six-coordinate, octahedral bis-ligand Fe(II) complexes (CzTR)2Fe. The synthesis and characterization of these complexes using 1H nuclear magnetic resonance (NMR), X-ray crystallography, Mössbauer spectroscopy, and density functional theory (DFT) calculations are reported. Analysis of the magnetic properties revealed that the isopropyl derivative displays thermally induced spin crossover (SCO) over a temperature range of 150-350 K. This transition appears as an abrupt two-step transition in the solid state but simplifies to a smooth one-step transition in solution. The two-step transition in the solid state has been postulated to be due to lattice and solvation effects. In contrast, the slightly bulkier substituted CH2-2,4,6-C6H2Me3 (CH2Mes) Fe complex displays dramatically different magnetic behavior with no SCO and magnetic data suggesting low-spin Fe(II) with a possible TIP contribution. DFT calculations support the postulate that the change in magnetic behavior is primarily due to the nature of the ligand substituents.
Collapse
Affiliation(s)
- Leah Gajecki
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, British Columbia, Canada V8W 3V6
| | - Barbara Sawicka
- Department of Mechanical Engineering, University of Victoria, P.O. Box 1700 STN CSC, Victoria, British Columbia, Canada V8W 2Y2
| | - David J Berg
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, British Columbia, Canada V8W 3V6
| | - Allen G Oliver
- Department of Chemistry & Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| |
Collapse
|
2
|
Isoselective mechanism for asymmetric kinetic resolution polymerization of rac-lactide catalyzed by chiral tridentate bis(oxazolinylphenyl)amido ligand supported zinc complexes. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
3
|
Nihala R, Hisana KN, Afsina CMA, Anilkumar G. Applications of iron pincer complexes in hydrosilylation reactions. RSC Adv 2022; 12:24339-24361. [PMID: 36128525 PMCID: PMC9414319 DOI: 10.1039/d2ra04239h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 08/08/2022] [Indexed: 11/21/2022] Open
Abstract
Due to its abundance, low cost and low toxicity, the first-row transition metal, iron is widely preferred as a catalyst in organic synthesis. The only drawback of lower selectivity due to high reactivity and low stability of the metal centre is tuned by using pincer ligands of different types. The different iron pincer complexes thus prepared are extensively used in catalyzing different types of organic reactions with great selectivity and functional group tolerance under moderate reaction conditions. In this review, we focus on the applications of iron pincer complexes in hydrosilylation reactions, especially the hydrosilylation of carbonyl derivatives and alkene/alkynes. Iron pincer complexes are efficient in catalyzing various organic reactions with excellent selectivity and functional group tolerance at moderate reaction conditions. This review focuses on the applications of iron pincer complexes in hydrosilylation reactions.![]()
Collapse
Affiliation(s)
- Rasheed Nihala
- Institute for Integrated Programmes and Research in Basic Sciences (IIRBS), Mahatma Gandhi University, Priyadarsini Hills P.O., Kottayam, Kerala, 686560, India, +91-481-2731036
| | - Kalathingal Nasreen Hisana
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills P.O., Kottayam, Kerala, 686560, India
| | - C. M. A. Afsina
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills P.O., Kottayam, Kerala, 686560, India
| | - Gopinathan Anilkumar
- Institute for Integrated Programmes and Research in Basic Sciences (IIRBS), Mahatma Gandhi University, Priyadarsini Hills P.O., Kottayam, Kerala, 686560, India, +91-481-2731036
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills P.O., Kottayam, Kerala, 686560, India
- Advanced Molecular Materials Research Centre (AMMRC), Mahatma Gandhi University, Priyadarsini Hills P.O., Kottayam, Kerala, 686560, India
| |
Collapse
|
4
|
Wang Y, Wang CJ, Feng QZ, Zhai JJ, Qi S, Zhong AG, Chu M, Xu DQ. Copper-catalyzed asymmetric 1,6-conjugate addition of in situ generated para-quinone methides with β-ketoesters. Chem Commun (Camb) 2022; 58:6653-6656. [DOI: 10.1039/d2cc00146b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Cu-catalyzed asymmetric 1,6-conjugate addition of in situ generated para-quinone methides (p-QMs) with β-ketoester has been developed to construct the ketoester skeleton bearing adjacent tertiary-quaternary carbon stereocenter in good yields...
Collapse
|
5
|
Xu PW, Cui XY, Chen C, Zhou F, Yu JS, Ao YF, Zhou J. Enantioselective Synthesis of C α-Tetrasubstituted N-Hydroxyl-α-amino Nitriles via Cyanation of Ketonitrones Using Me 2(CH 2Cl)SiCN. Org Lett 2021; 23:8471-8476. [PMID: 34644098 DOI: 10.1021/acs.orglett.1c03176] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Here, we report an unprecedented catalytic enantioselective cyanation of ketonitrones enabled by the bifunctional cyanating reagent Me2(CH2Cl)SiCN. This approach allows facile access to optically active N-hydroxyl-α-amino nitriles that are of high synthetic value but difficult to acquire by other methods. The use of bifunctional cyanating reagent Me2(CH2Cl)SiCN not only achieves an enantioselectivity higher than that with TMSCN but also enables various diversification reactions of the resulting silylated adducts. This represents the first enantioselective catalytic nucleophilic addition reaction of unactivated ketone-derived nitrones, exhibiting the potential of such tetrasubstituted C═N bonds for asymmetric synthesis of N-hydroxy α-amino acids and other N-hydroxy tertiary amines.
Collapse
Affiliation(s)
- Peng-Wei Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Process and Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, China
| | - Xiao-Yuan Cui
- Shanghai Key Laboratory of Green Chemistry and Chemical Process and Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, China
| | - Chen Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical Process and Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, China
| | - Feng Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Process and Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, China
| | - Jin-Sheng Yu
- Shanghai Key Laboratory of Green Chemistry and Chemical Process and Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, China
| | - Yu-Fei Ao
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jian Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Process and Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, China.,Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, China
| |
Collapse
|
6
|
Samanta S, Zheng C, Gajecki L, Berg DJ, Oliver AG, Crosby T, Godin L, Sandhu J. Carbazolyl- bis(triazole) and Carbazolyl- bis(tetrazole) Complexes of Palladium(II) and Platinum(II). J COORD CHEM 2021. [DOI: 10.1080/00958972.2021.1882674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Samya Samanta
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
| | - Cameron Zheng
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
| | - Leah Gajecki
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
| | - David J. Berg
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
| | - Allen G. Oliver
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Tristan Crosby
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
| | - Logan Godin
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
| | - Jaylene Sandhu
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
| |
Collapse
|
7
|
Giunta D, Arras A, Peluso P, Solinas M. Synthesis of “Click BOX” ligands and preliminary results on their application in the asymmetric copper catalysed Henry reaction of o-methoxybenzaldehyde. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
8
|
Aydin AE. Enantioselective Addition of Diethylzinc to Aromatic Aldehydes
Using Chiral Oxazoline-Based Ligands. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428020070271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
9
|
NNN‐
Cobalt(II) Pincer Complexes: Paramagnetic NMR Spectroscopy in Solution and Application as Hydrosilylation Catalysts. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000378] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
10
|
Hydrosoluble Complexes Bearing Tris(pyrazolyl)methane Sulfonate Ligand: Synthesis, Characterization and Catalytic Activity for Henry Reaction. Catalysts 2019. [DOI: 10.3390/catal9070611] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
The catalytic activity of the water-soluble scorpionate coordination compounds [Cu(-NN’O-Tpms)2] (1), [Mn(Tpms)2] (2) and Li[FeCl2(-NN’N’’-Tpms)] (3) [Tpms = tris(pyrazolyl)-methane sulfonate, O3SC(pz)3], were studied towards the (Henry) reaction between benzaldehyde and nitromethane or nitroethane in aqueous medium to afford, respectively, 2-nitro-1-phenylethanol or 2-nitro-1-phenylpropanol, the latter in the syn and the anti diastereoisomeric forms. Complex 1 exhibited the highest activity under the optimum experimental conditions and was used to broaden the scope of the reaction to include several aromatic aldehydes achieving yields up to 94%.
Collapse
|
11
|
Liu H, Yuan H, Shi X. Synthesis of nickel and palladium complexes with diarylamido-based unsymmetrical pincer ligands and application for norbornene polymerization. Dalton Trans 2019; 48:609-617. [PMID: 30534670 DOI: 10.1039/c8dt04413a] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A set of diarylamido-based unsymmetrical [PNNox] pincer ligands containing a chiral oxazoline ring have been synthesized and their nickel and palladium complexes [(2-PPh2(R1)ArN(R1)Ar-2-(R)oxazoline)MCl] (R1 = 4-H, R = (S)-4-iPr, M = Pd (Pd1); R1 = 4-H, R = (S)-4-Bn, M = Pd (Pd2); R1 = 4-H, R = (S)-4-Ph, M = Pd (Pd3); R1 = 4-Me, R = (S)-4-Bn, M = Pd (Pd4); R1 = 4-Me, R = (S)-4-Ph, M = Pd (Pd5); R1 = 4-H, R = 4-Me2, M = Pd (Pd6); R1 = 4-H, R = Benzo[d]-, M = Pd (Pd7); R1 = 4-H, R = (S)-4-Bn, M = Ni (Ni1); R1 = 4-H, R = (S)-4-Ph, M = Ni (Ni2); R1 = 4-Me, R = (S)-4-Bn, M = Ni (Ni3); R1 = 4-Me, R = (S)-4-Ph, M = Pd (Ni4)) were tested to show high catalytic activities for polymerization of norbornene. After activation of methylaluminoxane (MAO), all the nickel and palladium complexes could catalyze the polymerization of norbornene to yield vinyl-type polymers with activities up to 40.3 × 105 g of PNB (mol of Pd)-1 h-1. The copolymerization of norbornene with functional norbornene comonomers was also investigated by catalyst Pd2, accompanied by decreased catalytic activity and low incorporation of functional comonomers.
Collapse
Affiliation(s)
- Hui Liu
- Department of Polymer Materials, College of Materials Science and Engineering, Shanghai University, Materials Building, Nanchen Street 333, Shanghai 200444, China.
| | | | | |
Collapse
|
12
|
Heravi MM, Zadsirjan V, Masoumi B, Heydari M. Organometal-catalyzed asymmetric Friedel-Crafts reactions. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2018.10.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
13
|
Wang B, Wang Y, Jiang Y, Chu M, Qi S, Ju W, Xu D. Asymmetric fluorination of indanone-2-carboxylates using a polystyrene-supported diphenylamine-linked bis(oxazoline) complex. Org Biomol Chem 2018; 16:7702-7710. [PMID: 30288521 DOI: 10.1039/c8ob01943f] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly enantioselective fluorination of indanone-2-carboxylates catalyzed by a polystyrene-supported diphenylamine-linked bis(oxazoline) (PS-box)-Cu(OTf)2 complex has been developed in a continuous flow system. The supported complex exhibited extremely efficient catalytic performance with high activity, affording the corresponding products in excellent yields (up to 99% yield) with excellent enantioselectivities (up to 99% ee) and more than 4000 turnover number (TON).
Collapse
Affiliation(s)
- Biao Wang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
| | - Yifeng Wang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
| | - Yidong Jiang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
| | - Mingming Chu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
| | - Suosuo Qi
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
| | - Wanzhen Ju
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
| | - Danqian Xu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
| |
Collapse
|
14
|
Karasawa T, Oriez R, Kumagai N, Shibasaki M. anti-Selective Catalytic Asymmetric Nitroaldol Reaction of α-Keto Esters: Intriguing Solvent Effect, Flow Reaction, and Synthesis of Active Pharmaceutical Ingredients. J Am Chem Soc 2018; 140:12290-12295. [DOI: 10.1021/jacs.8b08236] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Tomoya Karasawa
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Raphaël Oriez
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| |
Collapse
|
15
|
Mahmoud AG, Guedes da Silva MFC, Śliwa EI, Smoleński P, Kuznetsov ML, Pombeiro AJL. Copper(II) and Sodium(I) Complexes based on 3,7-Diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane-5-oxide: Synthesis, Characterization, and Catalytic Activity. Chem Asian J 2018; 13:2868-2880. [DOI: 10.1002/asia.201800799] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 06/20/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Abdallah G. Mahmoud
- Centro de Química Estrutural; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
- Department of Chemistry; Faculty of Science; Helwan University; Ain Helwan 11795 Cairo Egypt
| | - M. Fátima C. Guedes da Silva
- Centro de Química Estrutural; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Ewelina I. Śliwa
- Faculty of Chemistry; University of Wrocław; Ul. F. Joliot-Curie 14 50-383 Wrocław Poland
| | - Piotr Smoleński
- Faculty of Chemistry; University of Wrocław; Ul. F. Joliot-Curie 14 50-383 Wrocław Poland
| | - Maxim L. Kuznetsov
- Centro de Química Estrutural; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
| |
Collapse
|
16
|
Abstract
This review covers diastereo- and enantiodivergent catalyzed reactions in acyclic and cyclic systems using metal complexes or organocatalysts. Among them, nucleophilic addition to carbon-carbon and carbon-nitrogen double bonds, α-functionalization of carbonyl compounds, allylic substitutions, and ring opening of oxiranes and aziridines are considered. The diastereodivergent synthesis of alkenes from alkynes is also included. Finally, stereodivergent intramolecular and intermolecular cycloadditions and other cyclizations are also reported.
Collapse
Affiliation(s)
- Irina P Beletskaya
- Chemistry Department , M. V. Lomonosov Moscow State University , Leninskie Gory 1 , 119992 Moscow , Russia
| | - Carmen Nájera
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , E-03080 Alicante , Spain
| | - Miguel Yus
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , E-03080 Alicante , Spain
| |
Collapse
|
17
|
Shende VS, Singh P, Bhanage BM. Recent trends in organocatalyzed asymmetric reduction of prochiral ketones. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02409f] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review depicts the recent practices followed in organocatalyzed asymmetric reduction of prochiral ketones, highlighting the main organocatalysts used for the past seven years.
Collapse
Affiliation(s)
- Vaishali S. Shende
- Department of Chemistry
- Institute of Chemical Technology
- Mumbai
- 400019 India
| | - Priya Singh
- Department of Chemistry
- Institute of Chemical Technology
- Mumbai
- 400019 India
| | | |
Collapse
|
18
|
He F, Chen G, Yang J, Liang G, Deng P, Xiong Y, Zhou H. Catalytic enantioselective Henry reaction of α-keto esters, 2-acylpyridines and 2-acylpyridine N-oxides. RSC Adv 2018; 8:9414-9422. [PMID: 35541881 PMCID: PMC9078658 DOI: 10.1039/c8ra00552d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 02/19/2018] [Indexed: 12/25/2022] Open
Abstract
Asymmetric Henry reaction of ketones catalyzed by a pre-prepared Ni complex with low catalyst loading.
Collapse
Affiliation(s)
- Feilong He
- School of Pharmaceutical Science
- Chongqing Medical University
- Chongqing 400016
- PR China
| | - Guanghui Chen
- School of Pharmaceutical Science
- Chongqing Medical University
- Chongqing 400016
- PR China
| | - Junxia Yang
- School of Pharmaceutical Science
- Chongqing Medical University
- Chongqing 400016
- PR China
| | - Guojuan Liang
- School of Pharmaceutical Science
- Chongqing Medical University
- Chongqing 400016
- PR China
| | - Ping Deng
- School of Pharmaceutical Science
- Chongqing Medical University
- Chongqing 400016
- PR China
| | - Yan Xiong
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 401331
- PR China
| | - Hui Zhou
- School of Pharmaceutical Science
- Chongqing Medical University
- Chongqing 400016
- PR China
| |
Collapse
|
19
|
Affiliation(s)
- András A. Gurka
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, H-6720 Szeged, Hungary
| | - Gábor London
- MTA-SZTE Stereochemistry Research Group, Dóm tér 8, H-6720 Szeged, Hungary
| |
Collapse
|
20
|
Azizoglu M, Erdogan A, Arslan N, Turgut Y, Hosgoren H, Pirinccioglu N. A series of novel β-hydroxyamide based catalysts for borane-mediated enantioselective reductions of prochiral ketones. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2016.06.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
21
|
Bennett SD, Pope SJA, Jenkins RL, Ward BD. Scandium Complexes Bearing Bis(oxazolinylphenyl)amide Ligands: An Analysis of Their Reactivity, Solution‐State Structures and Photophysical Properties. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Stacey D. Bennett
- School of ChemistryCardiff UniversityMain Building, Park PlaceCF10 3ATCardiffUK
| | - Simon J. A. Pope
- School of ChemistryCardiff UniversityMain Building, Park PlaceCF10 3ATCardiffUK
| | - Robert L. Jenkins
- School of ChemistryCardiff UniversityMain Building, Park PlaceCF10 3ATCardiffUK
| | - Benjamin D. Ward
- School of ChemistryCardiff UniversityMain Building, Park PlaceCF10 3ATCardiffUK
| |
Collapse
|
22
|
First row transition metal complexes of di-o-substituted-diarylamine-based ligands (including carbazoles, acridines and dibenzoazepines). Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.02.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
23
|
Tawde TS, Wagh SJ, Sapre JV, Khose VN, Badani PM, Karnik AV. Reversal of enantioselectivity induced by the achiral part of an organocatalyst in a Diels–Alder reaction. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2016.01.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
24
|
Ashokkumar V, Duraimurugan K, Siva A. A new series of bipyridine based chiral organocatalysts for enantioselective Henry reaction. NEW J CHEM 2016. [DOI: 10.1039/c6nj01045h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
We report the design and synthesis of a new series of binaphthol based chiral organocatalysts which can act as metal-free organocatalysts in the enantioselective Henry reaction with very good yield and ee.
Collapse
Affiliation(s)
| | | | - Ayyanar Siva
- School of Chemistry
- Madurai Kamaraj University
- Madurai-625 021
- India
| |
Collapse
|
25
|
Samimi HA, Mostafavi A, Farsani MR. K5[PW11ZnO39].23H2O-catalyzed acylation/ring expansion of ketoaziridines in a single pot: a new regio- and stereo-selective route for the synthesis of oxazolines. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2015. [DOI: 10.1007/s13738-015-0678-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
26
|
O’Reilly S, Aylward M, Keogh-Hansen C, Fitzpatrick B, McManus HA, Müller-Bunz H, Guiry PJ. Synthesis of Bis(oxazoline) Ligands Possessing C-5 gem-Disubstitution and Their Application in Asymmetric Friedel–Crafts Alkylations. J Org Chem 2015; 80:10177-86. [DOI: 10.1021/acs.joc.5b01767] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Steven O’Reilly
- Centre
for Synthesis and
Chemical Biology, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Miriam Aylward
- Centre
for Synthesis and
Chemical Biology, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Caoimhe Keogh-Hansen
- Centre
for Synthesis and
Chemical Biology, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Brian Fitzpatrick
- Centre
for Synthesis and
Chemical Biology, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Helen A. McManus
- Centre
for Synthesis and
Chemical Biology, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Helge Müller-Bunz
- Centre
for Synthesis and
Chemical Biology, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Patrick J. Guiry
- Centre
for Synthesis and
Chemical Biology, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| |
Collapse
|
27
|
Das A, Choudhary MK, Kureshy RI, Jana K, Verma S, Khan NUH, Abdi SH, Bajaj HC, Ganguly B. Asymmetric Henry reaction of trifluoromethyl ketone and aldehyde using Cu(II)-complex: computational study offers the origin of enantioselectivity with varied size of catalysts. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.06.033] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
28
|
Shi Y, Li Y, Sun J, Lai Q, Wei C, Gong Z, Gu Q, Song Z. Synthesis and applications in Henry reactions of novel chiral thiazoline tridentate ligands. Appl Organomet Chem 2015. [DOI: 10.1002/aoc.3347] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ye Shi
- Department of Organic Chemistry, College of Chemistry; Jilin University; Changchun 130021 China
| | - Yang Li
- Department of Organic Chemistry, College of Chemistry; Jilin University; Changchun 130021 China
| | - Jingbo Sun
- Department of Organic Chemistry, College of Chemistry; Jilin University; Changchun 130021 China
| | - Qi Lai
- Department of Organic Chemistry, College of Chemistry; Jilin University; Changchun 130021 China
| | - Chiyu Wei
- Department of Organic Chemistry, College of Chemistry; Jilin University; Changchun 130021 China
| | - Zhiyong Gong
- Department of Organic Chemistry, College of Chemistry; Jilin University; Changchun 130021 China
| | - Qiang Gu
- Department of Applied Chemistry, College of Chemistry; Jilin University; Changchun 130021 China
| | - Zhiguang Song
- Department of Organic Chemistry, College of Chemistry; Jilin University; Changchun 130021 China
| |
Collapse
|
29
|
Nishiyama H. Usable Optically Active Nitrogen-Based Tridentate Ligands for Asymmetric Catalysis. J SYN ORG CHEM JPN 2015. [DOI: 10.5059/yukigoseikyokaishi.73.925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
30
|
DeMott JC, Dekarske JR, McCulloch BJ, Ozerov OV. Cyclometallation of the NNN pincer ligand in complexes of platinum. Inorg Chem Front 2015. [DOI: 10.1039/c5qi00102a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Platinum complexes of the diimino/carbazolyl NNN pincer ligand have been prepared and characterized. Facile cyclometallation of the mesityl substituent was observed.
Collapse
Affiliation(s)
| | | | | | - Oleg V. Ozerov
- Department of Chemistry
- Texas A&M University
- College Station
- USA
| |
Collapse
|
31
|
|
32
|
Li JL, Liu L, Pei YN, Zhu HJ. Copper(II)-containing C2-symmetric bistetracarboline amides in enantioselective Henry reactions. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.10.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
33
|
Samimi HA, Shams Z. Regio-controlled and Stereo-controlled Ring Expansion of N-Substituted-2 Benzoylaziridines Using Fe(NO 3) 3. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.1773] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Heshmat A. Samimi
- Department of Chemistry, Faculty of Sciences; University of Shahrekord; PO Box 115 Shahrekord Iran
| | - Zahra Shams
- Department of Chemistry, Faculty of Sciences; University of Shahrekord; PO Box 115 Shahrekord Iran
| |
Collapse
|
34
|
Deng QH, Melen RL, Gade LH. Anionic chiral tridentate N-donor pincer ligands in asymmetric catalysis. Acc Chem Res 2014; 47:3162-73. [PMID: 25166279 DOI: 10.1021/ar5002457] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tridentate monoanionic ligands known as "pincers" have gained a prominent place as ligands for transition metals and, more recently, for main-group metals and lanthanides. They have been widely employed as ancillary ligands for metal complexes studied inter alia in bond activation steps relevant to catalytic processes. The central formally anionic aryl or heteroaryl unit acts as an "anchor" in the coordination to the metal, which kinetically stabilizes the resulting complexes. Their stability, activity, and reactivity can be tuned by subtle modifications of substitution patterns on the pincer ligand or by modifying the donor atoms. The challenges in pincer ligand design for enantioselective catalysis have been met by their assembly from rigid heterocycles and chiral ligating units in the "wingtip" positions, which generally contain the stereochemical information. The resulting well-defined geometry and shape of the reactive sector of the molecular catalyst favor orientational control of the substrates. On the other hand, the kinetic stability allows reduced catalyst loadings. Recently, a new generation of tridentate anionic N(∧)N(∧)N pincer ligands has been developed which give rise to highly enantioselective transformations. Their applications in asymmetric catalysis have focused primarily on the asymmetric Nozaki-Hiyama-Kishi coupling of aldehydes with halogenated hydrocarbons as well as Lewis acid catalysis involving enantioselective electrophilic attack onto metal-activated β-keto esters, oxindoles, and related substrates. These include highly selective protocols for Friedel-Crafts alkylations with Michael acceptors, electrophilic fluorinations, trifluoromethylations, azidations, and alkylations and subsequent transformations. Increasingly, these stereodirecting ligands are being employed in other types of transformations, including hydrosilylations, cyclopropanations, and epoxidations. The stability and well-defined nature of the molecular catalysts have made them attractive targets for mechanistic studies into a wide range of these transformations, thus providing the type of insight required for a more rational approach to catalyst development. This Account reviews work performed by us and other groups in the field and places it into perspective in relation to general research efforts in enantioselective catalysis.
Collapse
Affiliation(s)
- Qing-Hai Deng
- Anorganisch-Chemisches-Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Rebecca L. Melen
- Anorganisch-Chemisches-Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Lutz H. Gade
- Anorganisch-Chemisches-Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| |
Collapse
|
35
|
He J, Liu Z, Du G, Fu Y, Zhang S, Li X. Chiral Palladium(II) and Nickel(II) Complexes with C2-Symmetrical Tridentate Bis(oxazoline) Ligands: Synthesis, Characterization, and Catalytic Norbornene Polymerization. Organometallics 2014. [DOI: 10.1021/om5007616] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Jianyun He
- Key Laboratory of Cluster
Science of Ministry of Education, Department of Chemistry, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian
District, Beijing 100081, People’s Republic of China
| | - Zhanxiong Liu
- Key Laboratory of Cluster
Science of Ministry of Education, Department of Chemistry, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian
District, Beijing 100081, People’s Republic of China
| | - Gaixia Du
- Key Laboratory of Cluster
Science of Ministry of Education, Department of Chemistry, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian
District, Beijing 100081, People’s Republic of China
| | - Yinxia Fu
- Key Laboratory of Cluster
Science of Ministry of Education, Department of Chemistry, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian
District, Beijing 100081, People’s Republic of China
| | - Shaowen Zhang
- Key Laboratory of Cluster
Science of Ministry of Education, Department of Chemistry, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian
District, Beijing 100081, People’s Republic of China
| | - Xiaofang Li
- Key Laboratory of Cluster
Science of Ministry of Education, Department of Chemistry, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian
District, Beijing 100081, People’s Republic of China
| |
Collapse
|
36
|
Samimi HA, Shams Z. Fe(NO3)3 as an efficient catalyst for regio- and stereo-controlled ring expansion of 1,2-diaroyl-3-arylaziridines. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2014. [DOI: 10.1007/s13738-013-0364-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
37
|
Tan F, Lu LQ, Yang QQ, Guo W, Bian Q, Chen JR, Xiao WJ. Enantioselective Cascade Michael Addition/Cyclization Reactions of 3-Nitro-2H-Chromenes with 3-Isothiocyanato Oxindoles: Efficient Synthesis of Functionalized Polycyclic Spirooxindoles. Chemistry 2014; 20:3415-20. [DOI: 10.1002/chem.201303583] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Indexed: 12/22/2022]
|
38
|
Holmquist M, Blay G, Muñoz MC, Pedro JR. Enantioselective Addition of Nitromethane to 2-Acylpyridine N-Oxides. Expanding the Generation of Quaternary Stereocenters with the Henry Reaction. Org Lett 2014; 16:1204-7. [DOI: 10.1021/ol500082d] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Melireth Holmquist
- Departament
de Química Orgànica, Facultat de Química-Universitat de València, C/Dr. Moliner 50, E-46100Burjassot (València), Spain
| | - Gonzalo Blay
- Departament
de Química Orgànica, Facultat de Química-Universitat de València, C/Dr. Moliner 50, E-46100Burjassot (València), Spain
| | - M. Carmen Muñoz
- Departament
de Física Aplicada, Universitat Politècnica de València, E-46071 València, Spain
| | - José R. Pedro
- Departament
de Química Orgànica, Facultat de Química-Universitat de València, C/Dr. Moliner 50, E-46100Burjassot (València), Spain
| |
Collapse
|
39
|
Peng J, Du DM. Efficient enantioselective fluorination of β-keto esters/amides catalysed by diphenylamine-linked bis(thiazoline)–Cu(OTf)2complexes. RSC Adv 2014. [DOI: 10.1039/c3ra45438j] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
40
|
Bennett SD, Core BA, Blake MP, Pope SJA, Mountford P, Ward BD. Chiral lanthanide complexes: coordination chemistry, spectroscopy, and catalysis. Dalton Trans 2014; 43:5871-85. [DOI: 10.1039/c4dt00114a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Luminescent lanthanide complexes bearing amido-bisoxazoline ligands are reported. They were studied using time-resolved luminescence spectroscopy, and were probed for their activity in hydroamination/cyclisation and ring-opening polymerisation catalysis.
Collapse
Affiliation(s)
| | - Bryony A. Core
- Chemistry Research Laboratory
- University of Oxford
- Oxford OX1 3TA, UK
| | - Matthew P. Blake
- Chemistry Research Laboratory
- University of Oxford
- Oxford OX1 3TA, UK
| | | | - Philip Mountford
- Chemistry Research Laboratory
- University of Oxford
- Oxford OX1 3TA, UK
| | | |
Collapse
|
41
|
Zhang L, Wu H, Yang Z, Xu X, Zhao H, Huang Y, Wang Y. Synthesis and computation of diastereomeric phenanthroline–quinine ligands and their application in asymmetric Henry reaction. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.10.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
42
|
Corbett MT, Johnson JS. Dynamic kinetic asymmetric transformations of β-stereogenic α-ketoesters by direct aldolization. Angew Chem Int Ed Engl 2013; 53:255-9. [PMID: 24222195 DOI: 10.1002/anie.201306873] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Indexed: 11/11/2022]
Abstract
Dynamic kinetic asymmetric transformations (DyKAT) of racemic β-bromo-α-keto esters by direct aldolization of nitromethane and acetone provide access to fully substituted α-glycolic acid derivatives bearing a β-stereocenter. The aldol adducts are obtained in excellent yield with high relative and absolute stereocontrol under mild reaction conditions. Mechanistic studies determined that the reactions proceed through a facile catalyst-mediated racemization of the β-bromo-α-keto esters under a DyKAT Type I manifold.
Collapse
Affiliation(s)
- Michael T Corbett
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 (USA) http://www.unc.edu/jsjgroup/Home.html
| | | |
Collapse
|
43
|
Corbett MT, Johnson JS. Dynamic Kinetic Asymmetric Transformations of β-Stereogenic α-Ketoesters by Direct Aldolization. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306873] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
44
|
Azizoglu M, Erdogan A, Arslan N, Turgut Y. β-Hydroxyamide-Based Ligands and Their Use in the Enantioselective Borane Reduction of Prochiral Ketones. Chirality 2013; 26:21-6. [DOI: 10.1002/chir.22254] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 07/30/2013] [Accepted: 08/31/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Murat Azizoglu
- Chemistry Department, Science Faculty; Dicle University; Diyarbakir Turkey
| | - Asli Erdogan
- Chemistry Department, Science Faculty; Dicle University; Diyarbakir Turkey
| | - Nevin Arslan
- Chemistry Department, Science Faculty; Dicle University; Diyarbakir Turkey
| | - Yilmaz Turgut
- Chemistry Department, Science Faculty; Dicle University; Diyarbakir Turkey
| |
Collapse
|
45
|
Carnevale D, Perez Linde A, Bauer G, Bodenhausen G. Solid-state proton NMR of paramagnetic metal complexes: DANTE spin echoes for selective excitation in inhomogeneously broadened lines. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2013.06.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
46
|
Turgut Y, Azizoglu M, Erdogan A, Arslan N, Hosgoren H. β-Hydroxyamide derivatives of salicylic acid as organocatalysts for enantioselective reductions of prochiral ketones. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.05.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
47
|
Ran DQ, Shen TH, Zhou XC, Li JQ, Cui FN, Ma CA, Song QB. Asymmetric henry reaction catalyzed by chiral schiff base. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2013. [DOI: 10.1134/s1070428013060080] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
48
|
Liu H, He J, Liu Z, Lin Z, Du G, Zhang S, Li X. Quasi-Living trans-1,4-Polymerization of Isoprene by Cationic Rare Earth Metal Alkyl Species Bearing a Chiral (S,S)-Bis(oxazolinylphenyl)amido Ligand. Macromolecules 2013. [DOI: 10.1021/ma4005549] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Hui Liu
- Key Laboratory of Cluster
Science of Ministry of Education, Department of Chemistry, Beijing Institute of Technology, 5 South Zhongguancun
Street, Haidian District, Beijing 100081, China
| | - Jianyun He
- Key Laboratory of Cluster
Science of Ministry of Education, Department of Chemistry, Beijing Institute of Technology, 5 South Zhongguancun
Street, Haidian District, Beijing 100081, China
| | - Zhanxiong Liu
- Key Laboratory of Cluster
Science of Ministry of Education, Department of Chemistry, Beijing Institute of Technology, 5 South Zhongguancun
Street, Haidian District, Beijing 100081, China
| | - Zhengguo Lin
- Key Laboratory of Cluster
Science of Ministry of Education, Department of Chemistry, Beijing Institute of Technology, 5 South Zhongguancun
Street, Haidian District, Beijing 100081, China
| | - Gaixia Du
- Key Laboratory of Cluster
Science of Ministry of Education, Department of Chemistry, Beijing Institute of Technology, 5 South Zhongguancun
Street, Haidian District, Beijing 100081, China
| | - Shaowen Zhang
- Key Laboratory of Cluster
Science of Ministry of Education, Department of Chemistry, Beijing Institute of Technology, 5 South Zhongguancun
Street, Haidian District, Beijing 100081, China
| | - Xiaofang Li
- Key Laboratory of Cluster
Science of Ministry of Education, Department of Chemistry, Beijing Institute of Technology, 5 South Zhongguancun
Street, Haidian District, Beijing 100081, China
| |
Collapse
|
49
|
Ebru Aydin A. Synthesis of novel thiophene-based chiral ligands and their application in asymmetric Henry reaction. Appl Organomet Chem 2013. [DOI: 10.1002/aoc.2969] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- A. Ebru Aydin
- Department of Chemistry; Mustafa Kemal University; 31040; Hatay; Turkey
| |
Collapse
|
50
|
Ebru Aydin A, Yuksekdanaci S. Asymmetric Henry reactions catalyzed by metal complexes of chiral oxazoline based ligands. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2012.11.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|