1
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Modular synthesis of diphosphoramidite ligands derived from 1,8,10,9-triazaboradecalin and their complexes with Ni, Pd, and Pt. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115877] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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2
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Suresh CH, Remya GS, Anjalikrishna PK. Molecular electrostatic potential analysis: A powerful tool to interpret and predict chemical reactivity. WIRES COMPUTATIONAL MOLECULAR SCIENCE 2022. [DOI: 10.1002/wcms.1601] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Cherumuttathu H. Suresh
- Chemical Sciences and Technology Division CSIR‐National Institute for Interdisciplinary Science and Technology Thiruvananthapuram Kerala India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad India
| | - Geetha S. Remya
- Chemical Sciences and Technology Division CSIR‐National Institute for Interdisciplinary Science and Technology Thiruvananthapuram Kerala India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad India
| | - Puthannur K. Anjalikrishna
- Chemical Sciences and Technology Division CSIR‐National Institute for Interdisciplinary Science and Technology Thiruvananthapuram Kerala India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad India
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3
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Ruthenacycles and Iridacycles as Transfer Hydrogenation Catalysts. Molecules 2021; 26:molecules26134076. [PMID: 34279416 PMCID: PMC8271416 DOI: 10.3390/molecules26134076] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 06/22/2021] [Accepted: 06/29/2021] [Indexed: 11/29/2022] Open
Abstract
In this review, we describe the synthesis and use in hydrogen transfer reactions of ruthenacycles and iridacycles. The review limits itself to metallacycles where a ligand is bound in bidentate fashion to either ruthenium or iridium via a carbon–metal sigma bond, as well as a dative bond from a heteroatom or an N-heterocyclic carbene. Pincer complexes fall outside the scope. Described are applications in (asymmetric) transfer hydrogenation of aldehydes, ketones, and imines, as well as reductive aminations. Oxidation reactions, i.e., classical Oppenauer oxidation, which is the reverse of transfer hydrogenation, as well as dehydrogenations and oxidations with oxygen, are described. Racemizations of alcohols and secondary amines are also catalyzed by ruthenacycles and iridacycles.
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4
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Wang K, Zhang L, Tang W, Sun H, Xue D, Lei M, Xiao J, Wang C. Asymmetric Guerbet Reaction to Access Chiral Alcohols. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003104] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Kun Wang
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710062 China
| | - Lin Zhang
- State Key Laboratory of Chemical Resource Engineering Institute of Computational Chemistry College of Chemistry Beijing University of Chemical Technology Beijing 100029 China
| | - Weijun Tang
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710062 China
| | - Huaming Sun
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710062 China
| | - Dong Xue
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710062 China
| | - Ming Lei
- State Key Laboratory of Chemical Resource Engineering Institute of Computational Chemistry College of Chemistry Beijing University of Chemical Technology Beijing 100029 China
| | - Jianliang Xiao
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710062 China
- Department of Chemistry University of Liverpool Liverpool L69 7ZD UK
| | - Chao Wang
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710062 China
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5
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Wang K, Zhang L, Tang W, Sun H, Xue D, Lei M, Xiao J, Wang C. Asymmetric Guerbet Reaction to Access Chiral Alcohols. Angew Chem Int Ed Engl 2020; 59:11408-11415. [DOI: 10.1002/anie.202003104] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Kun Wang
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710062 China
| | - Lin Zhang
- State Key Laboratory of Chemical Resource Engineering Institute of Computational Chemistry College of Chemistry Beijing University of Chemical Technology Beijing 100029 China
| | - Weijun Tang
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710062 China
| | - Huaming Sun
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710062 China
| | - Dong Xue
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710062 China
| | - Ming Lei
- State Key Laboratory of Chemical Resource Engineering Institute of Computational Chemistry College of Chemistry Beijing University of Chemical Technology Beijing 100029 China
| | - Jianliang Xiao
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710062 China
- Department of Chemistry University of Liverpool Liverpool L69 7ZD UK
| | - Chao Wang
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710062 China
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6
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Chuchelkin IV, Gavrilov KN, Borisova NE, Perepukhov AM, Maximychev AV, Zheglov SV, Gavrilov VK, Firsin ID, Zimarev VS, Mikhel IS, Tafeenko VA, Murashova EV, Chernyshev VV, Goulioukina NS. Diamidophosphites from β-hydroxyamides: readily assembled ligands for Pd-catalyzed asymmetric allylic substitution. Dalton Trans 2020; 49:5625-5635. [DOI: 10.1039/d0dt00741b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Novel diamidophosphites based on β-hydroxyamides were prepared, and their individual and in situ formed complexes were tested in Pd-mediated allylations.
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7
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Xu T, Li JH, Momen R, Huang WJ, Kirk SR, Shigeta Y, Jenkins S. Chirality–Helicity Equivalence in the S and R Stereoisomers: A Theoretical Insight. J Am Chem Soc 2019; 141:5497-5503. [DOI: 10.1021/jacs.9b00823] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Tianlv Xu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research and Key Laboratory of Resource, National and Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
| | - Jia Hui Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research and Key Laboratory of Resource, National and Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
| | - Roya Momen
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research and Key Laboratory of Resource, National and Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
| | - Wei Jie Huang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research and Key Laboratory of Resource, National and Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
| | - Steven Robert Kirk
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research and Key Laboratory of Resource, National and Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
| | - Yasuteru Shigeta
- Center for Computational Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Samantha Jenkins
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research and Key Laboratory of Resource, National and Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
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8
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Gavrilov KN, Mikhel IS, Zheglov SV, Gavrilov VK, Chuchelkin IV, Firsin ID, Birin KP, Pytskii IS, Paseshnichenko KA, Tafeenko VA, Chernyshev VV, Shiryaev AA. Oxalamide-based bisdiamidophosphites: synthesis, coordination, and application in asymmetric metallocatalysis. Org Chem Front 2019. [DOI: 10.1039/c9qo00237e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A new group of P*-chiral bisdiamidophosphites has been developed for Pd- and Rh-catalyzed asymmetric reactions with good to excellent enantioselectivities.
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9
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Computational Characterization of Bidentate P-Donor Ligands: Direct Comparison to Tolman's Electronic Parameters. Molecules 2018; 23:molecules23123176. [PMID: 30513796 PMCID: PMC6321482 DOI: 10.3390/molecules23123176] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 11/22/2018] [Accepted: 11/28/2018] [Indexed: 11/16/2022] Open
Abstract
The applicability of two types of transition-metal carbonyl complexes as appropriate candidates for computationally derived Tolman's ligand electronic parameters were examined with density functional theory (DFT) calculations employing the B97D3 functional. Both Pd(0)L2(CO) and HRh(I)L2(CO) complexes correlated well with the experimental Tolman Electronic Parameter scale. For direct comparison of the electronic effects of diphosphines with those of monophosphines, the palladium-containing system is recommended. The t r a n s influence of various phosphines did not show a major difference, but the decrease of the H-Rh-P angle from linear can cause a significant change.
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10
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Behr A, Halama M, Domke L. High throughput screening of homogenously catalyzed hydrogenations in a continuously perfused membrane reactor. Chem Eng Res Des 2017. [DOI: 10.1016/j.cherd.2017.04.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Gavrilov KN, Zheglov SV, Novikov IM, Lugovsky VV, Zimarev VS, Mikhel IS. Diamidophosphite–oxazolines with a pyridine core in Pd-catalyzed asymmetric reactions. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2016.10.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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12
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Joyce LA, Regalado EL, Welch CJ. Hydroxypyridyl Imines: Enhancing Chromatographic Separation and Stereochemical Analysis of Chiral Amines via Circular Dichroism. J Org Chem 2016; 81:8199-205. [DOI: 10.1021/acs.joc.6b01162] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Leo A. Joyce
- Analytical Research & Development, Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Erik L. Regalado
- Analytical Research & Development, Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Christopher J. Welch
- Analytical Research & Development, Merck Research Laboratories, Rahway, New Jersey 07065, United States
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13
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Gavrilov KN, Shiryaev AA, Zheglov SV, Bochelyuk MS, Chuchelkin IV, Tafeenko VA, Chernyshev VV, Zamilatskov IA, Mikhel IS. NOBIN-based chiral phosphite-type ligands and their application in asymmetric catalysis. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.06.047] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Louise Hazeland E, Chapman AM, Pringle PG, Sparkes HA. A one-step, modular route to optically-active diphos ligands. Chem Commun (Camb) 2015; 51:10206-9. [PMID: 26017020 DOI: 10.1039/c5cc03517a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A chlorosilane elimination reaction has been developed that allows the efficient synthesis of optically pure C1-symmetric, C1-backboned diphosphines with a wide variety of stereoelectronic characteristics.
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Affiliation(s)
- E Louise Hazeland
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK.
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15
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DUTTA PAPIA, SAIKIA MRINAL, DAS RASHMIJYOTI, BORAH RULI. Investigation of Keto-enol Tautomers during the Synthesis of Aryl-bis (2-hydroxy-1-naphthyl)Methanes. J CHEM SCI 2015. [DOI: 10.1007/s12039-014-0741-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Metola P, Nichols S, Kahr B, Anslyn E. Well Plate Circular Dichroism Reader for the Rapid Determination of Enantiomeric Excess. Chem Sci 2014; 5:4278-4282. [PMID: 25386332 PMCID: PMC4224325 DOI: 10.1039/c4sc01641f] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Circular dichroism (CD) spectropolarimeters typically employ one photoelastic modulator. However, spectropolarimeters employing two or even four modulators are more versatile and can be used to subvert common measurement errors arising from imperfectly isotropic samples or sample holders. Small linear anisotropies that can cause large errors in CD measurement can be associated with multi-well sample holders. Thus, high-throughput CD analyses in multi-well plates have not yet been demonstrated. One such application is the determination of enantiomeric excess of a library of reaction products. Herein, a spectropolarimeter employing four photoelastic modulators and a translation stage was used to determine the enantiomeric excess of a family of chiral amine complexes much more rapidly than could be achieved with a robotic fluid injection system. These experiments are proof of concept for high-throughput CD analysis. In practice, commercially available glass bottomed well plates are sufficiently strain free such that a simple instrument with just one photoelastic modulator and a vertical optical train should be able to deliver the CD without special considerations given herein. On the other hand, polystyrene well plates cannot be used in this way.
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Affiliation(s)
- P. Metola
- Department of Chemistry, The University of Texas at Austin, Austin, Texas, 78712, USA
| | - S.M. Nichols
- Department of Chemistry and Molecular Design Institute, New York University, New York, New York 10003, USA
| | - B. Kahr
- Department of Chemistry and Molecular Design Institute, New York University, New York, New York 10003, USA
| | - E.V. Anslyn
- Department of Chemistry, The University of Texas at Austin, Austin, Texas, 78712, USA
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17
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Gavrilov KN, Zheglov SV, Gavrilov VK, Chuchelkin IV, Novikov IM, Shiryaev AA, Volov AN, Zamilatskov IA. Diamidophosphites with remote P∗-stereocentres and their performance in Pd-catalyzed enantioselective reactions. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2014.06.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Ahmed I, Clark DA. Rapid synthesis of 3,3' bis-arylated BINOL derivatives using a C-H borylation in situ Suzuki-Miyaura coupling sequence. Org Lett 2014; 16:4332-5. [PMID: 25079395 DOI: 10.1021/ol502126r] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The increased interest in BINOL derived catalysts for asymmetric transformations has encouraged us to disclose a rapid and scalable method of preparing 3,3' bis-arylated BINOL derivatives 1 using a one-pot CH borylation/Suzuki-Miyaura coupling sequence. The use of an aldehyde additive was found to be crucial to the success of this in situ tandem approach. This method was applied to the preparation of 10 BINOL derivatives, each completed within 24 h. Notably, this approach requires only a single purification step.
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Affiliation(s)
- Ijaz Ahmed
- Department of Chemistry, 1-014 Center for Science and Technology, Syracuse University , Syracuse, New York 13244, United States
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19
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Pradal A, Gladiali S, Michelet V, Toullec PY. Combinatorial approach to chiral tris-ligated carbophilic platinum complexes: application to asymmetric catalysis. Chemistry 2014; 20:7128-35. [PMID: 24757042 DOI: 10.1002/chem.201304794] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 02/17/2014] [Indexed: 11/09/2022]
Abstract
A straightforward methodology for the synthesis of libraries of chiral tris-ligated cationic platinum complexes and their in situ evaluation as asymmetric carbophilic catalysts in a model domino hydroarylation/cyclization reaction of a 1,6-enyne was developed. A catalyst-generation process based on a combination of a monodentate and a bidentate phosphorus ligand allowed the formation of 108 chiral complexes. One-pot screening of the stereoinduction obtained with this library in a test domino addition/cyclization reaction validated this approach and stressed the key role played by the monodentate ligand partner in obtaining high enantioselectivities. In the case of two challenging substrate/nucleophile combinations, the combinatorial approach resulted in a significant gain in enantioselectivity.
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Affiliation(s)
- Alexandre Pradal
- Institut de Recherche de Chimie Paris, UMR 8247, Chimie ParisTech, ENSCP, 11, rue Pierre et Marie Curie, 75231 Paris CEDEX 05 (France), Fax: (+33) 144071062
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20
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Jover J, Fey N. The Computational Road to Better Catalysts. Chem Asian J 2014; 9:1714-23. [DOI: 10.1002/asia.201301696] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 02/17/2014] [Indexed: 11/07/2022]
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21
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Dong K, Li Y, Wang Z, Ding K. Catalytic Asymmetric Hydrogenation of α-CF3- or β-CF3-Substituted Acrylic Acids using Rhodium(I) Complexes with a Combination of Chiral and Achiral Ligands. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201307903] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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22
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Dong K, Li Y, Wang Z, Ding K. Catalytic Asymmetric Hydrogenation of α-CF3- or β-CF3-Substituted Acrylic Acids using Rhodium(I) Complexes with a Combination of Chiral and Achiral Ligands. Angew Chem Int Ed Engl 2013; 52:14191-5. [DOI: 10.1002/anie.201307903] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2013] [Indexed: 11/09/2022]
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23
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Li Y, Dong K, Wang Z, Ding K. Rhodium(I)-Catalyzed Enantioselective Hydrogenation of Substituted Acrylic Acids with Sterically Similar β,β-Diaryls. Angew Chem Int Ed Engl 2013; 52:6748-52. [DOI: 10.1002/anie.201302349] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Indexed: 11/10/2022]
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24
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Li Y, Dong K, Wang Z, Ding K. Rhodium(I)-Catalyzed Enantioselective Hydrogenation of Substituted Acrylic Acids with Sterically Similar β,β-Diaryls. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302349] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Gavrilov KN, Shiryaev AA, Zheglov SV, Potapova OV, Chuchelkin IV, Novikov IM, Rastorguev EA, Davankov VA. Development of P∗-monodentate diamidophosphites with a C1-symmetric 1,2-diamine backbone: the effects of substituents in the 1,3,2-diazaphospholidine cycle on Pd-catalyzed asymmetric allylations. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.02.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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26
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Phillips HIA, Chernikov AV, Fletcher NC, Ashcroft AE, Ault JR, Filby MH, Wilson AJ. The use of electrospray mass spectrometry to determine speciation in a dynamic combinatorial library for anion recognition. Chemistry 2012; 18:13733-42. [PMID: 22996943 PMCID: PMC3569615 DOI: 10.1002/chem.201201302] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Revised: 07/26/2012] [Indexed: 01/10/2023]
Abstract
The composition of a dynamic mixture of similar 2,2'-bipyridine complexes of iron(II) bearing either an amide (5-benzylamido-2,2'-bipyridine and 5-(2-methoxyethane)amido-2,2'-bipyridine) or an ester (2,2'-bipyridine-5-carboxylic acid benzylester and 2,2'-bipyridine-5-carboxylic acid 2-methoxyethane ester) side chain have been evaluated by electrospray mass spectroscopy in acetonitrile. The time taken for the complexes to come to equilibrium appears to be dependent on the counteranion, with chloride causing a rapid redistribution of two preformed heteroleptic complexes (of the order of 1 hour), whereas the time it takes in the presence of tetrafluoroborate salts is in excess of 24 h. Similarly the final distribution of products is dependent on the anion present, with the presence of chloride, and to a lesser extent bromide, preferring three amide-functionalized ligands, and a slight preference for an appended benzyl over a methoxyethyl group. Furthermore, for the first time, this study shows that the distribution of a dynamic library of metal complexes monitored by ESI-MS can adapt following the introduction of a different anion, in this case tetrabutylammonium chloride to give the most favoured heteroleptic complex despite the increasing ionic strength of the solution.
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Affiliation(s)
- Hazel I A Phillips
- School of Chemistry and Chemical Engineering, Queen's University BelfastStranmillis Road, Belfast BT9 5AG (UK)
| | - Aleksey V Chernikov
- School of Chemistry and Chemical Engineering, Queen's University BelfastStranmillis Road, Belfast BT9 5AG (UK)
| | - Nicholas C Fletcher
- School of Chemistry and Chemical Engineering, Queen's University BelfastStranmillis Road, Belfast BT9 5AG (UK)
| | - Alison E Ashcroft
- Astbury Centre for Structural Molecular Biology, University of Leeds InstitutionWoodhouse Lane, Leeds LS2 9JT (UK)
| | - James R Ault
- Astbury Centre for Structural Molecular Biology, University of Leeds InstitutionWoodhouse Lane, Leeds LS2 9JT (UK)
| | - Maria H Filby
- School of Chemistry, University of Leeds InstitutionWoodhouse Lane, Leeds LS2 9JT (UK)
| | - Andrew J Wilson
- Astbury Centre for Structural Molecular Biology, University of Leeds InstitutionWoodhouse Lane, Leeds LS2 9JT (UK)
- School of Chemistry, University of Leeds InstitutionWoodhouse Lane, Leeds LS2 9JT (UK)
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27
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Gavrilov KN, Shiryaev AA, Chuchelkin IV, Zheglov SV, Rastorguev EA, Davankov VA, Börner A. BINOL-derived diphosphoramidites bearing unsymmetrical 1,2-diamine link and their application in asymmetric catalysis. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.tetasy.2012.06.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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28
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Dragna J, Pescitelli G, Tran L, Lynch VM, Anslyn EV, Di Bari L. In situ assembly of octahedral Fe(II) complexes for the enantiomeric excess determination of chiral amines using circular dichroism spectroscopy. J Am Chem Soc 2012; 134:4398-407. [PMID: 22272943 PMCID: PMC3329375 DOI: 10.1021/ja211768v] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A method for discriminating between α-chiral primary amine enantiomers is reported. The method utilizes circular dichroism (CD) spectroscopy and a sensing ensemble composed of 2-formyl-3-hydroxypyridine (4) and Fe(II)(TfO)(2). Aldehyde 4 reacts rapidly with chiral amines to form chiral imines, which complex Fe(II) to form a series of diastereomeric octahedral complexes that are CD-active in both the UV and visible regions of the spectrum. NMR studies showed that for enantiomerically pure imine complexes, the Δ-fac isomer is preferred. A statistical analysis of the distribution of stereoisomers accurately modeled the calibration curves for enantiomeric excess (ee). CD signals appearing in the UV region were bisignate, and the nulls of the CD signals were coincident with maxima in the UV spectrum, consistent with exciton coupling. Time-dependent density functional theory and semiempirical calculations confirmed that the CD signals in the UV region arise from coupling of the π-π* transitions in the imine chromophores and that they can be used to describe the signs and magnitudes of the curves accurately. The CD signals in the visible region arise from metal-to-ligand charge-transfer bands, and these signals can be used to determine the ee values of chiral amines with an average absolute error of ±5%. Overall, the strategy presented herein represents a facile in situ assembly process that uses commercially available simple reagents to create large optical signals indicative of ee values.
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Affiliation(s)
- Justin Dragna
- Department of Chemistry and Biochemistry The University of Texas Austin TX 78712
- Dipartimento di Chimica e Chimica Industriale Via Risorgimento 35 1-56126 PISA (Italy)
| | - Gennaro Pescitelli
- Department of Chemistry and Biochemistry The University of Texas Austin TX 78712
- Dipartimento di Chimica e Chimica Industriale Via Risorgimento 35 1-56126 PISA (Italy)
| | - Lee Tran
- Department of Chemistry and Biochemistry The University of Texas Austin TX 78712
- Dipartimento di Chimica e Chimica Industriale Via Risorgimento 35 1-56126 PISA (Italy)
| | - Vincent M. Lynch
- Department of Chemistry and Biochemistry The University of Texas Austin TX 78712
- Dipartimento di Chimica e Chimica Industriale Via Risorgimento 35 1-56126 PISA (Italy)
| | | | - Lorenzo Di Bari
- Department of Chemistry and Biochemistry The University of Texas Austin TX 78712
- Dipartimento di Chimica e Chimica Industriale Via Risorgimento 35 1-56126 PISA (Italy)
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Phosphites and diamidophosphites based on mono-ethers of BINOL: a comparison of enantioselectivity in asymmetric catalytic reactions. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.11.092] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Ager DJ, de Vries AHM, de Vries JG. Asymmetric homogeneous hydrogenations at scale. Chem Soc Rev 2012; 41:3340-80. [DOI: 10.1039/c2cs15312b] [Citation(s) in RCA: 266] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Leung D, Kang SO, Anslyn EV. Rapid determination of enantiomeric excess: a focus on optical approaches. Chem Soc Rev 2012; 41:448-79. [DOI: 10.1039/c1cs15135e] [Citation(s) in RCA: 258] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Gridnev ID, Alberico E, Gladiali S. Captured at last: a catalyst–substrate adduct and a Rh-dihydride solvate in the asymmetric hydrogenation by a Rh-monophosphine catalyst. Chem Commun (Camb) 2012; 48:2186-8. [DOI: 10.1039/c2cc17335b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Lloret Fillol J, Kruckenberg A, Scherl P, Wadepohl H, Gade LH. Stitching Phospholanes Together Piece by Piece: New Modular Di- and Tridentate Stereodirecting Ligands. Chemistry 2011; 17:14047-62. [DOI: 10.1002/chem.201101864] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2011] [Indexed: 11/08/2022]
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Gavrilov KN, Zheglov SV, Gavrilova MN, Chuchelkin IV, Groshkin NN, Rastorguev EA, Davankov VA. Phosphoramidites based on phenyl-substituted 1,2-diols as ligands in palladium-catalyzed asymmetric allylations: the contribution of steric demand and chiral centers to the enantioselectivity. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.08.122] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Alberico E, Baumann W, de Vries JG, Drexler HJ, Gladiali S, Heller D, Henderickx HJW, Lefort L. Unravelling the Reaction Path of Rhodium-MonoPhos-Catalysed Olefin Hydrogenation. Chemistry 2011; 17:12683-95. [DOI: 10.1002/chem.201101793] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2011] [Indexed: 11/10/2022]
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Friest JA, Broussy S, Chung WJ, Berkowitz DB. Combinatorial catalysis employing a visible enzymatic beacon in real time: synthetically versatile (pseudo)halometalation/carbocyclizations. Angew Chem Int Ed Engl 2011; 50:8895-9. [PMID: 21905180 PMCID: PMC3517167 DOI: 10.1002/anie.201103365] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Indexed: 01/10/2023]
Affiliation(s)
- Jacob A. Friest
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588 (USA), Fax: (+001) 402-472-9402
| | - Sylvain Broussy
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588 (USA), Fax: (+001) 402-472-9402
| | - Woo Jin Chung
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588 (USA), Fax: (+001) 402-472-9402
| | - David B. Berkowitz
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588 (USA), Fax: (+001) 402-472-9402
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Friest JA, Broussy S, Chung WJ, Berkowitz DB. Combinatorial Catalysis Employing a Visible Enzymatic Beacon in Real Time: Synthetically Versatile (Pseudo)Halometalation/Carbocyclizations. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201103365] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Yoshida K, Akashi N, Yanagisawa A. Asymmetric addition of diethylzinc to aldehydes catalyzed by new zinc-amides prepared by a rhodium-catalyzed asymmetric addition. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.06.031] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Deuss PJ, den Heeten R, Laan W, Kamer PCJ. Bioinspired Catalyst Design and Artificial Metalloenzymes. Chemistry 2011; 17:4680-98. [DOI: 10.1002/chem.201003646] [Citation(s) in RCA: 166] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Pd-catalyzed asymmetric reactions using resorcinol- and hydroquinone-based P∗,P∗-bidentate diamidophosphites. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2010.11.111] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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41
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Frauenlob R, McCormack MM, Walsh CM, Bergin E. Rapid, in situ synthesis of bidentate ligands: chromatography-free generation of catalyst libraries. Org Biomol Chem 2011; 9:6934-7. [DOI: 10.1039/c1ob06180a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Stephan M, Šterk D, Zupančič B, Mohar B. Profiling the tuneable R-SMS-Phos structure in the rhodium(i)-catalyzed hydrogenation of olefins: the last stand? Org Biomol Chem 2011; 9:5266-71. [DOI: 10.1039/c1ob05364g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Jover J, Fey N, Harvey JN, Lloyd-Jones GC, Orpen AG, Owen-Smith GJJ, Murray P, Hose DRJ, Osborne R, Purdie M. Expansion of the Ligand Knowledge Base for Monodentate P-Donor Ligands (LKB-P). Organometallics 2010. [DOI: 10.1021/om100648v] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Mark Purdie
- AstraZeneca, Pharmaceutical Development, Charnwood, Bakewell Road, Loughborough, Leicestershire LE11 5RH, U.K
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Busscher GF, Lefort L, Cremers JG, Mottinelli M, Wiertz RW, Lange BD, Okamura Y, Yusa Y, Matsumura K, Shimizu H, de Vries JG, de Vries AH. Efficient preparation of an N-aryl β-amino acid via asymmetric hydrogenation and direct asymmetric reductive amination en route to Ezetimibe. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.04.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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46
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Podtetenieff J, Taglieber A, Bill E, Reijerse EJ, Reetz MT. An Artificial Metalloenzyme: Creation of a Designed Copper Binding Site in a Thermostable Protein. Angew Chem Int Ed Engl 2010; 49:5151-5. [PMID: 20572232 DOI: 10.1002/anie.201002106] [Citation(s) in RCA: 114] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- John Podtetenieff
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
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Podtetenieff J, Taglieber A, Bill E, Reijerse E, Reetz M. An Artificial Metalloenzyme: Creation of a Designed Copper Binding Site in a Thermostable Protein. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201002106] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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48
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Teichert JF, Feringa BL. Phosphoramidites: privileged ligands in asymmetric catalysis. Angew Chem Int Ed Engl 2010; 49:2486-528. [PMID: 20333685 DOI: 10.1002/anie.200904948] [Citation(s) in RCA: 541] [Impact Index Per Article: 38.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Asymmetric catalysis with transition-metal complexes is the basis for a vast array of stereoselective transformations and has changed the face of modern synthetic chemistry. Key to this success has been the design of chiral ligands to control the regio-, diastereo-, and enantioselectivity. Phosphoramidites have emerged as a highly versatile and readily accessible class of chiral ligands. Their modular structure enables the formation of ligand libraries and easy fine-tuning for a specific catalytic reaction. Phosphoramidites frequently show exceptional levels of stereocontrol, and their monodentate nature is essential in combinatorial catalysis, where a ligand-mixture approach is used. In this Review, recent developments in asymmetric catalysis with phosphoramidites used as ligands are discussed, with a focus on the formation of carbon-carbon and carbon-heteroatom bonds.
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Affiliation(s)
- Johannes F Teichert
- Stratingh Institute for Chemistry and Center for Systems Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
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Jankowski P, McMullin CL, Gridnev ID, Orpen AG, Pringle PG. Is restricted M–P rotation a common feature of enantioselective monophos catalysts? An example of restricted Rh–P rotation in a secondary phosphine complex. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.06.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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50
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Fernández-Pérez H, Donald S, Munslow I, Benet-Buchholz J, Maseras F, Vidal-Ferran A. Highly Modular POP Ligands for Asymmetric Hydrogenation: Synthesis, Catalytic Activity, and Mechanism. Chemistry 2010; 16:6495-508. [DOI: 10.1002/chem.200902915] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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