51
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Chávez MÁ, Vargas S, Suárez A, Álvarez E, Pizzano A. Highly Enantioselective Hydrogenation of β-Acyloxy and β-Acylamino α,β-Unsaturated Phosphonates Catalyzed by Rhodium Phosphane-Phosphite Complexes. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201000611] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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52
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Gopalaiah K, Kagan HB. Use of Nonfunctionalized Enamides and Enecarbamates in Asymmetric Synthesis. Chem Rev 2011; 111:4599-657. [DOI: 10.1021/cr100031f] [Citation(s) in RCA: 283] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kovuru Gopalaiah
- Department of Chemistry, University of Delhi, Delhi 110007, India
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (UMR 8182, CNRS), Laboratoire de Catalyse Moléculaire, Université Paris-Sud, 91405 Orsay, France
| | - Henri B. Kagan
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (UMR 8182, CNRS), Laboratoire de Catalyse Moléculaire, Université Paris-Sud, 91405 Orsay, France
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53
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Sun T, Hou G, Ma M, Zhang X. New Synthetic Strategy for High-Enantiopurity N-Protected α-Amino Ketones and their Derivatives by Asymmetric Hydrogenation. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201000680] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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54
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Xie JH, Zhu SF, Zhou QL. Transition Metal-Catalyzed Enantioselective Hydrogenation of Enamines and Imines. Chem Rev 2010; 111:1713-60. [DOI: 10.1021/cr100218m] [Citation(s) in RCA: 844] [Impact Index Per Article: 60.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jian-Hua Xie
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Shou-Fei Zhu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Qi-Lin Zhou
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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55
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Geng H, Huang K, Sun T, Li W, Zhang X, Zhou L, Wu W, Zhang X. Enantioselective Synthesis of Optically Pure β-Amino Ketones and γ-Aryl Amines by Rh-Catalyzed Asymmetric Hydrogenation. J Org Chem 2010; 76:332-4. [DOI: 10.1021/jo102091f] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Huiling Geng
- College of Science, Northwest Agriculture & Forestry University, Yangling, Shaanxi 712100, P. R. China
- Department of Chemistry and Chemical Biology & Department of Pharmaceutical Chemistry, Rutgers, the State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Kexuan Huang
- Department of Chemistry and Chemical Biology & Department of Pharmaceutical Chemistry, Rutgers, the State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Tian Sun
- Department of Chemistry and Chemical Biology & Department of Pharmaceutical Chemistry, Rutgers, the State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Wei Li
- Department of Chemistry and Chemical Biology & Department of Pharmaceutical Chemistry, Rutgers, the State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Xiaowei Zhang
- Department of Chemistry and Chemical Biology & Department of Pharmaceutical Chemistry, Rutgers, the State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Le Zhou
- College of Science, Northwest Agriculture & Forestry University, Yangling, Shaanxi 712100, P. R. China
| | - Wenjun Wu
- College of Science, Northwest Agriculture & Forestry University, Yangling, Shaanxi 712100, P. R. China
| | - Xumu Zhang
- Department of Chemistry and Chemical Biology & Department of Pharmaceutical Chemistry, Rutgers, the State University of New Jersey, Piscataway, New Jersey 08854, United States
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56
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Lee N, Petrenko T, Bergmann U, Neese F, DeBeer S. Probing valence orbital composition with iron Kbeta X-ray emission spectroscopy. J Am Chem Soc 2010; 132:9715-27. [PMID: 20578760 DOI: 10.1021/ja101281e] [Citation(s) in RCA: 207] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A systematic study of 12 ferric and ferrous Kbeta X-ray emission spectra (XES) is presented. The factors contributing to the Kbeta main line and the valence to core region of the spectra are experimentally assessed and quantitatively evaluated. While the Kbeta main line spectra are dominated by spin state contributions, the valence to core region is shown to have greater sensitivity to changes in the chemical environment. A density functional theory (DFT) based approach is used to calculate the experimental valence spectra and to evaluate the contributions to experimental intensities and energies. The spectra are found to be dominated by iron np to 1s electric dipole allowed transitions, with pronounced sensitivity to spin state, ligand identity, ligand ionization state, hybridization state, and metal-ligand bond lengths. These findings serve as an important calibration for future applications to iron active sites in biological and chemical catalysis. Potential applications to Compound II heme derivatives are highlighted.
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Affiliation(s)
- Nicole Lee
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA
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57
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Huang K, Zhang X, Emge TJ, Hou G, Cao B, Zhang X. Design and synthesis of a novel three-hindered quadrant bisphosphine ligand and its application in asymmetric hydrogenation. Chem Commun (Camb) 2010; 46:8555-7. [PMID: 20944852 DOI: 10.1039/c0cc02620d] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel three hindered quadrant bisphosphine ligand has been synthesized. The ligand shows excellent enantioselectivities and reactivities for rhodium-catalyzed hydrogenations of various functionalized olefins.
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Affiliation(s)
- Kexuan Huang
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
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58
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Nugent T, El-Shazly M. Chiral Amine Synthesis - Recent Developments and Trends for Enamide Reduction, Reductive Amination, and Imine Reduction. Adv Synth Catal 2010. [DOI: 10.1002/adsc.200900719] [Citation(s) in RCA: 722] [Impact Index Per Article: 51.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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59
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Lucarini S, Alessi M, Bedini A, Giorgini G, Piersanti G, Spadoni G. Diastereo- and Enantioselective Hydrogenation of a Challenging Enamide Derived from 4-Phenyl-2-tetralone: An Appealing Shortcut Towards Enantiopurecis-2-Aminotetraline Derivatives. Chem Asian J 2010; 5:550-4. [DOI: 10.1002/asia.200900441] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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60
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Tang W, Capacci A, Sarvestani M, Wei X, Yee NK, Senanayake CH. A Facile and Practical Synthesis of N-Acetyl Enamides. J Org Chem 2009; 74:9528-30. [DOI: 10.1021/jo902259u] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wenjun Tang
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut 06877
| | - Andrew Capacci
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut 06877
| | - Max Sarvestani
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut 06877
| | - Xudong Wei
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut 06877
| | - Nathan K. Yee
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut 06877
| | - Chris H. Senanayake
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut 06877
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61
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Geng H, Zhang W, Chen J, Hou G, Zhou L, Zou Y, Wu W, Zhang X. Rhodium-Catalyzed Enantioselective and Diastereoselective Hydrogenation of β-Ketoenamides: Efficient Access toanti1,3-Amino Alcohols. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200902339] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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62
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Geng H, Zhang W, Chen J, Hou G, Zhou L, Zou Y, Wu W, Zhang X. Rhodium-Catalyzed Enantioselective and Diastereoselective Hydrogenation of β-Ketoenamides: Efficient Access toanti1,3-Amino Alcohols. Angew Chem Int Ed Engl 2009; 48:6052-4. [DOI: 10.1002/anie.200902339] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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