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Xu Y, Liu D, Gao F, Li S, Zhang X, Wang L, Yang D. Harnessing Dpp-Imine as a Powerful Achiral Cocatalyst to Dramatically Increase the Efficiency and Stereoselectivity in a Magnesium-Mediated Oxa-Michael Reaction. JACS AU 2024; 4:164-176. [PMID: 38274262 PMCID: PMC10806778 DOI: 10.1021/jacsau.3c00584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 12/06/2023] [Accepted: 12/11/2023] [Indexed: 01/27/2024]
Abstract
Dpp-imines are classic model substrates for synthetic method studies. Here, we disclose their powerful use as achiral coligands in metal-catalyzed reactions. It is highly interesting to find that the Dpp-imine can not only act as powerful ligand to create excellent chiral pockets with magnesium complexes but also, more importantly, this coligand can dramatically enhance the catalytic ability of the metal catalyst. The underlying reaction mechanism was extensively explored by conducting a series of experiments, including 31P NMR studies of the coordination complex between the Dpp-imine coligand and magnesium complexes, ESI capture results, multiple control experiments, studies and comparison of different coligands, 1H NMR studies on the relationship between the substrate and Dpp-imine coligand, as well as the relationship between the substrate and the full complexes. Furthermore, DFT calculation provided valuable insights in the role of the imine additive and demonstrated that adding the Dpp-imine coligand in the magnesium catalyst can switch the deprotonation/nucleophilic addition steps from a stepwise mechanism to a concerted process during the oxa-cyclization reaction. The crucial factors responsible for the excellent enantioselectivity and enhanced reaction efficiency brought by Dpp-imine have been extracted from the calculation model. These mechanistic experiments and DFT calculation data clearly disclose and prove the powerful and interesting functions of the Dpp-imine coligand, which also direct a novel application of this type of active imine as useful ligands in metal-catalyzed asymmetric reactions.
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Affiliation(s)
- Yingfan Xu
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, School
of Basic Medical Sciences & Research Unit of Peptide Science,
2019RU066, Lanzhou University, Lanzhou 730000, Gansu, P. R. China
| | - Dan Liu
- Institute
of Systems and Physical Biology, Shenzhen
Bay Laboratory, Shenzhen 518055, P. R. China
| | - Feiyun Gao
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, School
of Basic Medical Sciences & Research Unit of Peptide Science,
2019RU066, Lanzhou University, Lanzhou 730000, Gansu, P. R. China
| | - Shixin Li
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, School
of Basic Medical Sciences & Research Unit of Peptide Science,
2019RU066, Lanzhou University, Lanzhou 730000, Gansu, P. R. China
| | - Xiaoyong Zhang
- Institute
of Systems and Physical Biology, Shenzhen
Bay Laboratory, Shenzhen 518055, P. R. China
| | - Linqing Wang
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, School
of Basic Medical Sciences & Research Unit of Peptide Science,
2019RU066, Lanzhou University, Lanzhou 730000, Gansu, P. R. China
| | - Dongxu Yang
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, School
of Basic Medical Sciences & Research Unit of Peptide Science,
2019RU066, Lanzhou University, Lanzhou 730000, Gansu, P. R. China
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Wolińska E, Rozbicki P, Branowska D. Chiral pyridine oxazoline and 1,2,4-triazine oxazoline ligands incorporating electron-withdrawing substituents and their application in the Cu-catalyzed enantioselective nitroaldol reaction. MONATSHEFTE FUR CHEMIE 2022. [DOI: 10.1007/s00706-022-02893-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
AbstractEight pyridine-containing and four 1,2,4-triazine-containing chiral oxazoline ligands incorporating electron-withdrawing substituents have been synthesized by two-step route including Buchwald–Hartwig amination. Enantio-inducing activity of the ligands has been assessed in the copper-catalyzed asymmetric nitroaldol reactions and the influence of the electron-withdrawing substituents on the ligands' activity has been investigated.
Graphical abstract
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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]
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4
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Zhang S, Li Y, Xu Y, Wang Z. Recent progress in copper catalyzed asymmetric Henry reaction. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2017.10.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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5
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The synthesis of chiral tridentate ligands from l -proline and their application in the copper(II)-catalyzed enantioselective Henry reaction. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.tetasy.2017.05.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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6
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Lu G, Zheng F, Wang L, Guo Y, Li X, Cao X, Wang C, Chi H, Dong Y, Zhang Z. Asymmetric Henry reaction catalyzed by Cu(II)-based chiral amino alcohol complexes with C2-symmetry. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2016.06.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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7
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Jiao T, Tu J, Li G, Xu F. Cu-catalyzed asymmetric Henry reaction promoted by chiral camphor Schiff bases. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcata.2016.02.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Zielińska-Błajet M, Boratyński PJ, Sidorowicz Ł, Skarżewski J. Simple approach to modular chiral scaffolds: binding functional sulfur nucleophiles to Cinchona alkaloids. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.05.035] [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]
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9
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Xu F, Lei C, Yan L, Tu J, Li G. Copper-Chiral Camphor β
-Amino Alcohol Complex Catalyzed Asymmetric Henry Reaction. Chirality 2015; 27:761-5. [DOI: 10.1002/chir.22498] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Accepted: 07/19/2015] [Indexed: 01/11/2023]
Affiliation(s)
- Feng Xu
- Laboratory of Macromolecular Science of Shaanxi Province; School of Chemistry & Chemical Engineering; Shaanxi Normal University; Xi'an Shaanxi People's Republic of China
| | - Chao Lei
- Laboratory of Macromolecular Science of Shaanxi Province; School of Chemistry & Chemical Engineering; Shaanxi Normal University; Xi'an Shaanxi People's Republic of China
| | - Lei Yan
- Laboratory of Macromolecular Science of Shaanxi Province; School of Chemistry & Chemical Engineering; Shaanxi Normal University; Xi'an Shaanxi People's Republic of China
| | - Jingxuan Tu
- Laboratory of Macromolecular Science of Shaanxi Province; School of Chemistry & Chemical Engineering; Shaanxi Normal University; Xi'an Shaanxi People's Republic of China
| | - Gaoqiang Li
- Laboratory of Macromolecular Science of Shaanxi Province; School of Chemistry & Chemical Engineering; Shaanxi Normal University; Xi'an Shaanxi People's Republic of China
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A study of chiral oxazoline ligands with a 1,2,4-triazine and other six-membered aza-heteroaromatic rings and their application in Cu-catalysed asymmetric nitroaldol reactions. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2014.10.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Qian CW, Lv WL, Zong QS, Wang MY, Fang D. Copper-catalyzed Ullmann-type synthesis of diaryl ethers assisted by salicylaldimine ligands. CHINESE CHEM LETT 2014. [DOI: 10.1016/j.cclet.2013.11.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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12
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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]
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13
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Wolińska E. Chiral oxazoline ligands containing a 1,2,4-triazine ring and their application in the Cu-catalyzed asymmetric Henry reaction. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.06.084] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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14
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Synthesis of C 1-symmetric primary-secondary diamines and their application in the enantioselective Henry reaction. Front Chem Sci Eng 2013. [DOI: 10.1007/s11705-013-1343-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Liu M, Ma S, Tian Z, Wu H, Wu L, Xu X, Huang Y, Wang Y. Modular bipyridine ligands coupled with Cinchona alkaloids for Cu(II)-catalyzed asymmetric Henry reactions. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.05.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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16
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Jozwiuk A, Wang Z, Powell DR, Houser RP. Copper(II) complexes of symmetric and asymmetric bis(imine) ligands: Tuning the Cu(I)/Cu(II) redox couple. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2012.08.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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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]
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Balaghi SE, Safaei E, Chiang L, Wong EWY, Savard D, Clarke RM, Storr T. Synthesis, characterization and catalytic activity of copper(ii) complexes containing a redox-active benzoxazole iminosemiquinone ligand. Dalton Trans 2013; 42:6829-39. [DOI: 10.1039/c3dt00004d] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Wei Y, Yao L, Zhang B, He W, Zhang S. Novel Schiff base ligands derived from Cinchona alkaloids for Cu(II)-catalyzed asymmetric Henry reaction. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.08.076] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ghosn MW, Wolf C. Enantioselective recognition of amines with an atropisomeric 1,8-bisphenolnaphthalene. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.07.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Subba Reddy B, George J. Enantioselective Henry reaction catalyzed by a copper(II) glucoBOX complex. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.06.012] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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