1
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Wei Q, Zhang Y, Lv C, Hu C, Su Z. Theoretical Study on Cooperation Catalysis of Chiral Guanidine/ Copper(I) in Asymmetric Azide-Alkyne Cycloaddition/[2 + 2] Cascade Reaction. J Org Chem 2023. [PMID: 37437267 DOI: 10.1021/acs.joc.3c00758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
Density functional theory (DFT) calculations with BP86-D3(BJ) functionals were employed to reveal the mechanism and stereoselectivity of chiral guanidine/copper(I) salt-catalyzed stereoselective three-component reaction among N-sulfonyl azide, terminal alkyne, and isatin-imine for spiroazetidinimines that was first reported by Feng and Liu (Angew. Chem. Int. Ed. 2018, 57, 16852-16856). For the noncatalytic cascade reaction, the denitrogenation to generate ketenimine species was the rate-determining step, with an activation barrier of 25.8-34.8 kcal mol-1. Chiral guanidine-amide promoted the deprotonation of phenylacetylene, generating guanidine-Cu(I) acetylide complexes as active species. In azide-alkyne cycloaddition, copper acetylene coordinated to the O atom of the amide moiety in guanidium, and TsN3 was activated by hydrogen bonding, affording the Cu(I)-ketenimine species with an energy barrier of 3.5∼9.4 kcal mol-1. The optically active spiroazetidinimine oxindole was constructed via a stepwise four-membered ring formation, followed by deprotonation of guanidium moieties for C-H bonding in a stereoselective way. The steric effect of the bulky CHPh2 group and chiral backbone in the guanidine, combined with the coordination between the Boc group in isatin-imine with a copper center, played important roles in controlling the stereoselectivity of the reaction. The major spiroazetidinimine oxindole product with an SS configuration was formed in a kinetically more favored way, which was consistent with the experimental observation.
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Affiliation(s)
- Qi Wei
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Yan Zhang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Cidan Lv
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Changwei Hu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Zhishan Su
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
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2
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Tan Q, Chen Q, Zhu Z, Liu X. Asymmetric organocatalytic sulfenylation for the construction of a diheteroatom-bearing tetrasubstituted carbon centre. Chem Commun (Camb) 2022; 58:9686-9689. [PMID: 35959638 DOI: 10.1039/d2cc03443c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalytic enantioselective sulfenylation to construct diheteroatom-bearing carbon centres was achieved by employing chiral guanidine organocatalysts. This protocol provided a facile route towards the synthesis of α-fluoro-α-sulfenyl-β-ketoamides, azlactone adducts and α-sulfur-substituted amino acid derivatives in high yields with good to excellent enantioselectivities. A possible working mode was proposed to elucidate the chiral control of the process.
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Affiliation(s)
- Qingfa Tan
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Qianping Chen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Zitong Zhu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
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3
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Abstract
The current review is devoted to the achievements in the development of methods for the catalytic asymmetric synthesis of phosphonates containing a chiral center in the side chain. C-chiral phosphonates are widely represented among natural compounds with various biological activities as insecticides, herbicides, antibiotics, and bioregulators. Synthetic representatives of this class have found practical application as biologically active compounds. The review summarizes methods of asymmetric metal complex catalysis and organocatalysis as applied to such reactions as phospha-aldol reaction, two-component and three-component phospha-Mannich reaction, phospha-Michael reaction, as well as hydrogenation of unsaturated phosphonates and phosphine oxides, ketophosphonates, and iminophosphonates. Methods for the asymmetric hydride reduction of C=X phosphonates (X=O, S, NR) are also discussed in detail. The review presents updated literature reports, as well as original research by the author.
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4
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Li J, An M, Gao Z, Guo Y, Liu H, Zhao P, Bi X, Shi E, Xiao J. Organobase-catalyzed 1,1-diborylation of terminal alkynes under metal-free conditions. RSC Adv 2022; 12:16530-16534. [PMID: 35747526 PMCID: PMC9159348 DOI: 10.1039/d2ra02638d] [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: 04/25/2022] [Accepted: 05/25/2022] [Indexed: 11/26/2022] Open
Abstract
An organobase-catalyzed 1,1-diborylation of terminal alkynes from propargylic derivatives with bis(2,4-dimethylpentane-2,4-glycolato)diboron (B2oct2) is first reported, regioselectively providing 1,1-diborylalkene products with high efficiency. The catalytic pathway is well postulated on the basis of DFT calculations. An organobase-catalyzed 1,1-diborylation of terminal alkynes from propargylic derivatives with B2oct2 is first reported, providing 1,1-diborylalkene products with high efficiency. The catalytic pathway is well postulated on the basis of DFT calculations.![]()
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Affiliation(s)
- Junchen Li
- State Key Laboratory of NBC Protection for Civilian Beijing P. R. China
| | - Min An
- College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering Zigong P. R. China
| | - Zhenhua Gao
- State Key Laboratory of NBC Protection for Civilian Beijing P. R. China
| | - Yongbiao Guo
- State Key Laboratory of NBC Protection for Civilian Beijing P. R. China
| | - Haibo Liu
- State Key Laboratory of NBC Protection for Civilian Beijing P. R. China
| | - Peichao Zhao
- State Key Laboratory of NBC Protection for Civilian Beijing P. R. China
| | - Xiaojing Bi
- State Key Laboratory of NBC Protection for Civilian Beijing P. R. China
| | - Enxue Shi
- State Key Laboratory of NBC Protection for Civilian Beijing P. R. China
| | - Junhua Xiao
- State Key Laboratory of NBC Protection for Civilian Beijing P. R. China
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5
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Tang X, Su Z, Lin Q, Lin L, Dong S, Feng X. Asymmetric catalytic α‐selective allylation of ketones with allyltrifluoroborates using dual‐functional chiral
In
III
/
N
,
N
′‐dioxide complex. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiaoxue Tang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Zhishan Su
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Qianchi Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry Sichuan University Chengdu 610064 P. R. China
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6
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Tamaribuchi K, Tian J, Akagawa K, Kudo K. Enantioselective Nitro‐Michael Addition Catalyzed by N‐Terminal Guanidinylated Helical Peptide. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101152] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Kenya Tamaribuchi
- Institute of Industrial Science The University of Tokyo 4-6-1 Komaba, Meguro-ku Tokyo 153-8505 Japan
| | - Jiaqi Tian
- Institute of Industrial Science The University of Tokyo 4-6-1 Komaba, Meguro-ku Tokyo 153-8505 Japan
| | - Kengo Akagawa
- Institute of Industrial Science The University of Tokyo 4-6-1 Komaba, Meguro-ku Tokyo 153-8505 Japan
| | - Kazuaki Kudo
- Institute of Industrial Science The University of Tokyo 4-6-1 Komaba, Meguro-ku Tokyo 153-8505 Japan
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7
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Origins of catalyst-controlled enantiodivergent hydroamination of enones with pyridazinones: A computational study. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.02.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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8
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Push–Pull Effect on the Gas-Phase Basicity of Nitriles: Transmission of the Resonance Effects by Methylenecyclopropene and Cyclopropenimine π-Systems Substituted by Two Identical Strong Electron Donors. Symmetry (Basel) 2021. [DOI: 10.3390/sym13091554] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The gas-phase basicity of nitriles can be enhanced by a push–pull effect. The role of the intercalated scaffold between the pushing group (electron-donor) and the pulling (electron-acceptor) nitrile group is crucial in the basicity enhancement, simultaneously having a transmission function and an intrinsic contribution to the basicity. In this study, we examine the methylenecyclopropene and the N-analog, cyclopropenimine, as the smallest cyclic π systems that can be considered for resonance propagation in a push–pull system, as well as their derivatives possessing two strong pushing groups (X) attached symmetrically to the cyclopropene scaffold. For basicity and push–pull effect investigations, we apply theoretical methods (DFT and G2). The effects of geometrical and rotational isomerism on the basicity are explored. We establish that the protonation of the cyano group is always favored. The push–pull effect of strong electron donor X substituents is very similar and the two π-systems appear to be good relays for this effect. The effects of groups in the two cyclopropene series are found to be proportional to the effects in the directly substituted nitrile series X–C≡N. In parallel to the basicity, changes in electron delocalization caused by protonation are also assessed on the basis of aromaticity indices. The calculated proton affinities of the nitrile series reported in this study enrich the gas-phase basicity scale of nitriles to around 1000 kJ mol−1.
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9
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Guanidine-Amide-Catalyzed Aza-Henry Reaction of Isatin-Derived Ketimines: Origin of Selectivity and New Catalyst Design. Molecules 2021; 26:molecules26071965. [PMID: 33807341 PMCID: PMC8037019 DOI: 10.3390/molecules26071965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/29/2021] [Accepted: 03/29/2021] [Indexed: 12/05/2022] Open
Abstract
Density functional theory (DFT) calculations were performed to investigate the mechanism and the enantioselectivity of the aza-Henry reaction of isatin-derived ketimine catalyzed by chiral guanidine–amide catalysts at the M06-2X-D3/6-311+G(d,p)//M06-2X-D3/6-31G(d,p) (toluene, SMD) theoretical level. The catalytic reaction occurred via a three-step mechanism: (i) the deprotonation of nitromethane by a chiral guanidine–amide catalyst; (ii) formation of C–C bonds; (iii) H-transfer from guanidine to ketimine, accompanied with the regeneration of the catalyst. A dual activation model was proposed, in which the protonated guanidine activated the nitronate, and the amide moiety simultaneously interacted with the ketimine substrate by intermolecular hydrogen bonding. The repulsion of CPh3 group in guanidine as well as N-Boc group in ketimine raised the Pauli repulsion energy (∆EPauli) and the strain energy (∆Estrain) of reacting species in the unfavorable si-face pathway, contributing to a high level of stereoselectivity. A new catalyst with cyclopropenimine and 1,2-diphenylethylcarbamoyl as well as sulfonamide substituent was designed. The strong basicity of cyclopropenimine moiety accelerated the activation of CH3NO2 by decreasing the energy barrier in the deprotonation step. The repulsion between the N-Boc group in ketimine and cyclohexyl group as well as chiral backbone in the new catalyst raised the energy barrier in C–C bond formation along the si-face attack pathway, leading to the formation of R-configuration product. A possible synthetic route for the new catalyst is also suggested.
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10
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11
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Wang CC, Qu YL, Liu XH, Ma ZW, Yang B, Liu ZJ, Chen XP, Chen YJ. Synthesis of Five-Membered Cyclic Guanidines via Cascade [3 + 2] Cycloaddition of α-Haloamides with Organo-cyanamides. J Org Chem 2021; 86:3546-3554. [PMID: 33538590 DOI: 10.1021/acs.joc.0c02932] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The convenient preparation of N2-unprotected five-membered cyclic guanidines was achieved through a cascade [3 + 2] cycloaddition between organo-cyanamides and α-haloamides under mild conditions in good to excellent yields (up to 99%). The corresponding cyclic guanidines could be easily transformed into hydantoins via hydrolysis.
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Affiliation(s)
- Chuan-Chuan Wang
- Faculty of Science, Henan University of Animal Husbandry and Economy, No. 146 Yingcai Street, Zhengzhou 450044, Henan, China.,College of Chemistry, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, Henan, China
| | - Ya-Li Qu
- School of Pharmaceutical Sciences, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, Henan, China
| | - Xue-Hua Liu
- School of Pharmaceutical Sciences, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, Henan, China
| | - Zhi-Wei Ma
- Faculty of Science, Henan University of Animal Husbandry and Economy, No. 146 Yingcai Street, Zhengzhou 450044, Henan, China
| | - Bo Yang
- College of Chemistry, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, Henan, China
| | - Zhi-Jing Liu
- Faculty of Science, Henan University of Animal Husbandry and Economy, No. 146 Yingcai Street, Zhengzhou 450044, Henan, China
| | - Xiao-Pei Chen
- Faculty of Science, Henan University of Animal Husbandry and Economy, No. 146 Yingcai Street, Zhengzhou 450044, Henan, China
| | - Ya-Jing Chen
- School of Pharmaceutical Sciences, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; Co-innovation Center of Henan Province for New Drug R & D and Preclinical Safety, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, Henan, China
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12
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Ke C, Liu Z, Ruan S, Feng X, Liu X. Organocatalytic asymmetric synthesis of benzothiazolopyrimidines via a [4 + 2] cycloaddition of azlactones with 2-benzothiazolimines. Org Chem Front 2021. [DOI: 10.1039/d1qo00948f] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A chiral guanidine-catalyzed [4 + 2] cycloaddition of 2-benzothiazolimines with azlactones characterized by a high yield, ee, and dr and a broad substrate scope has been developed. Gram-scale synthesis and derivatization of the product revealed the potential of utility.
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Affiliation(s)
- Chaoqi Ke
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Zhenzhong Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Sai Ruan
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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13
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Xie L, Li Y, Dong S, Feng X, Liu X. Catalytic asymmetric formal [3+2] cycloaddition of isatogens with azlactones to construct indolin-3-one derivatives. Chem Commun (Camb) 2021; 57:239-242. [DOI: 10.1039/d0cc06418a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A number of enantioenriched indolin-3-one derivatives were readily obtained by chiral guanidine-catalyzed [3+2] cycloaddition of isatogens with azlactones.
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Affiliation(s)
- Lihua Xie
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Yi Li
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
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14
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Kee CW, Wong MW. Bicyclic Guanidine-Catalyzed Asymmetric Cycloaddition Reaction of Anthrones-Bifunctional Binding Modes and Origin of Stereoselectivity. J Org Chem 2020; 85:15139-15153. [PMID: 33175532 DOI: 10.1021/acs.joc.0c02008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
We report a computational analysis of the [5,5] bicyclic guanidine-catalyzed asymmetric cycloaddition reaction of anthrones. Based on extensive conformational search of key intermediates and transition states on the potential energy surface and density functional theory calculations, we studied five plausible binding modes between the guanidine catalyst and substrates for this reaction. Our results indicate that the most favorable pathway is a stepwise conjugate addition-Aldol sequence via the dual hydrogen-bond binding mode. The predicted level of enantioselectivity is in good agreement with experimental values. Trends in variation of substrates and catalysts have also been reproduced by our calculations. Decomposition analysis revealed the significance of aromatic interactions in stabilizing the key enantioselectivity-determining transition state structures.
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Affiliation(s)
- Choon Wee Kee
- Process & Catalysis Research, Institute of Chemical and Engineering Sciences, 1 Pesek Road, Singapore 627899.,Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Ming Wah Wong
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
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15
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Parker A, Lamata P, Viguri F, Rodríguez R, López JA, Lahoz FJ, García-Orduña P, Carmona D. Half-sandwich complexes of osmium containing guanidine-derived ligands. Dalton Trans 2020; 49:13601-13617. [PMID: 32975256 DOI: 10.1039/d0dt02713h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Pyridinyl- and phosphano-guanidino complexes of formula [(η6-p-cymene)OsCl(H2L)][SbF6] (cymene = MeC6H4iPr; H2L = N,N'-bis(p-Tolyl)-N''-(2-pyridinylmethyl)guanidine, H2L1 (1) and N,N'-bis(p-Tolyl)-N''-(2-diphenylphosphanoethyl)guanidine, H2L2 (2)) have been prepared from the dimer [{(η6-p-cymene)OsCl}2(μ-Cl)2] and H2L in the presence of NaSbF6. Treatment of complex 2 with HCl renders the phosphano-guanidinium complex [(η6-p-cymene)OsCl2(H3L2)][SbF6] (3). Compounds 1 and 2 react with AgSbF6 rendering the cationic aqua complexes [(η6-p-cymene)Os(H2L)(OH2)][SbF6]2 (H2L = H2L1 (4), H2L2 (5)). Addition of monodentate ligands L to compound 4 affords complexes of formula [(η6-p-cymene)Os(H2L1)L][SbF6]2 (L = py (6), 4-(NHMe)py (7), CO (8), P(OMe)3 (9)). Treatment of complexes 4 and 5 with NaHCO3 renders the monocationic complexes [(η6-p-cymene)Os(κ3N,N',N''-HL1)][SbF6] (10) and [(η6-p-cymene)Os(κ3N,N',P-HL2)][SbF6] (11), respectively, in which the HL ligand adopts a fac-κ3 coordination mode. The new complexes have been characterised by analytical and spectroscopic means, including the determination of the crystal structures of the compounds 1-4, 6, 8, and 11, by X-ray diffractometric methods. The phosphano-guanidino complexes 2 and 5 exhibit a temperature dependent fluxional process in solution. The new 18 electron complexes 1, 2, 6, and 8-10 are active catalysts for the Friedel-Crafts reaction between trans-β-nitrostyrene and N-methyl-2-methylindole. Conversions greater than 90% were obtained. Proton NMR studies support a mechanism involving the Brønsted-acid activation of trans-β-nitrostyrene through the NH functionalities of the coordinated guanidine ligands.
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Affiliation(s)
- Amie Parker
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Departamento de Química Inorgánica, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
| | - Pilar Lamata
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Departamento de Química Inorgánica, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
| | - Fernando Viguri
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Departamento de Química Inorgánica, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
| | - Ricardo Rodríguez
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Departamento de Química Inorgánica, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
| | - José A López
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Departamento de Química Inorgánica, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
| | - Fernando J Lahoz
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Departamento de Química Inorgánica, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
| | - Pilar García-Orduña
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Departamento de Química Inorgánica, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
| | - Daniel Carmona
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Departamento de Química Inorgánica, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
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16
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Kondoh A, Oishi M, Tezuka H, Terada M. Development of Chiral Organosuperbase Catalysts Consisting of Two Different Organobase Functionalities. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001419] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Azusa Kondoh
- Research and Analytical Center for Giant MoleculesGraduate School of ScienceTohoku University, Aramaki, Aoba-ku Sendai 980–8578 Japan
| | - Masafumi Oishi
- Department of ChemistryGraduate School of ScienceTohoku University, Aramaki, Aoba-ku Sendai 980–8578 Japan
| | - Hikaru Tezuka
- Department of ChemistryGraduate School of ScienceTohoku University, Aramaki, Aoba-ku Sendai 980–8578 Japan
| | - Masahiro Terada
- Department of ChemistryGraduate School of ScienceTohoku University, Aramaki, Aoba-ku Sendai 980–8578 Japan
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17
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Kondoh A, Oishi M, Tezuka H, Terada M. Development of Chiral Organosuperbase Catalysts Consisting of Two Different Organobase Functionalities. Angew Chem Int Ed Engl 2020; 59:7472-7477. [DOI: 10.1002/anie.202001419] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Indexed: 12/22/2022]
Affiliation(s)
- Azusa Kondoh
- Research and Analytical Center for Giant MoleculesGraduate School of ScienceTohoku University, Aramaki, Aoba-ku Sendai 980–8578 Japan
| | - Masafumi Oishi
- Department of ChemistryGraduate School of ScienceTohoku University, Aramaki, Aoba-ku Sendai 980–8578 Japan
| | - Hikaru Tezuka
- Department of ChemistryGraduate School of ScienceTohoku University, Aramaki, Aoba-ku Sendai 980–8578 Japan
| | - Masahiro Terada
- Department of ChemistryGraduate School of ScienceTohoku University, Aramaki, Aoba-ku Sendai 980–8578 Japan
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18
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Wang Y, Cao Z, Li Q, Lin G, Zhou J, Tian P. Activating Pronucleophiles with High p
K
a
Values: Chiral Organo‐Superbases. Angew Chem Int Ed Engl 2020; 59:8004-8014. [DOI: 10.1002/anie.201913484] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Indexed: 01/02/2023]
Affiliation(s)
- Yu‐Hui Wang
- The Research Center of Chiral DrugsInnovation Research Institute of Traditional Chinese MedicineShanghai University of Traditional Chinese Medicine 1200 Cailun Road Shanghai 201203 China
| | - Zhong‐Yan Cao
- College of Chemical EngineeringZhejiang University of Technology 18 Chaowang Road Hangzhou 310014 China
| | - Qing‐Hua Li
- The Research Center of Chiral DrugsInnovation Research Institute of Traditional Chinese MedicineShanghai University of Traditional Chinese Medicine 1200 Cailun Road Shanghai 201203 China
| | - Guo‐Qiang Lin
- The Research Center of Chiral DrugsInnovation Research Institute of Traditional Chinese MedicineShanghai University of Traditional Chinese Medicine 1200 Cailun Road Shanghai 201203 China
| | - Jian Zhou
- School of Chemistry and Molecular EngineeringEast China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Ping Tian
- The Research Center of Chiral DrugsInnovation Research Institute of Traditional Chinese MedicineShanghai University of Traditional Chinese Medicine 1200 Cailun Road Shanghai 201203 China
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19
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Wang Y, Cao Z, Li Q, Lin G, Zhou J, Tian P. Activating Pronucleophiles with High p
K
a
Values: Chiral Organo‐Superbases. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913484] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yu‐Hui Wang
- The Research Center of Chiral DrugsInnovation Research Institute of Traditional Chinese MedicineShanghai University of Traditional Chinese Medicine 1200 Cailun Road Shanghai 201203 China
| | - Zhong‐Yan Cao
- College of Chemical EngineeringZhejiang University of Technology 18 Chaowang Road Hangzhou 310014 China
| | - Qing‐Hua Li
- The Research Center of Chiral DrugsInnovation Research Institute of Traditional Chinese MedicineShanghai University of Traditional Chinese Medicine 1200 Cailun Road Shanghai 201203 China
| | - Guo‐Qiang Lin
- The Research Center of Chiral DrugsInnovation Research Institute of Traditional Chinese MedicineShanghai University of Traditional Chinese Medicine 1200 Cailun Road Shanghai 201203 China
| | - Jian Zhou
- School of Chemistry and Molecular EngineeringEast China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Ping Tian
- The Research Center of Chiral DrugsInnovation Research Institute of Traditional Chinese MedicineShanghai University of Traditional Chinese Medicine 1200 Cailun Road Shanghai 201203 China
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20
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Ruan S, Zhong X, Chen Q, Feng X, Liu X. An asymmetric hydrocyanation/Michael reaction of α-diazoacetates via Cu(i)/chiral guanidine catalysis. Chem Commun (Camb) 2020; 56:2155-2158. [DOI: 10.1039/c9cc09521g] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An asymmetric one-pot hydrocyanation/Michael reaction of α-aryl diazoacetates with trimethylsilyl cyanide, tert-butanol, and N-phenylmaleimides has been realized using a chiral guanidinium salt/CuBr catalyst.
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Affiliation(s)
- Sai Ruan
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education, College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Xia Zhong
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education, College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Quangang Chen
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education, College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education, College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education, College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
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21
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Yang J, Ruan P, Yang W, Feng X, Liu X. Enantioselective carbene insertion into the N-H bond of benzophenone imine. Chem Sci 2019; 10:10305-10309. [PMID: 32110317 PMCID: PMC6979361 DOI: 10.1039/c9sc03354h] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 09/16/2019] [Indexed: 01/09/2023] Open
Abstract
Efficient enantioselective insertion of α-diazoesters into the N-H bond of N-sp2-hybridized benzophenone imine was realized by using Rh2(esp)2 and chiral guanidine cooperative catalysis. Both aliphatic and aromatic substituted α-amino esters were obtained in high yields (up to 99%) and good enantioselectivities (up to 95.5 : 4.5 er) under mild reaction conditions.
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Affiliation(s)
- Jian Yang
- Key Laboratory of Green Chemistry & Technology , Ministry of Education , College of Chemistry , Sichuan University , Chengdu 610064 , China .
| | - Peiran Ruan
- Key Laboratory of Green Chemistry & Technology , Ministry of Education , College of Chemistry , Sichuan University , Chengdu 610064 , China .
| | - Wei Yang
- Key Laboratory of Green Chemistry & Technology , Ministry of Education , College of Chemistry , Sichuan University , Chengdu 610064 , China .
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology , Ministry of Education , College of Chemistry , Sichuan University , Chengdu 610064 , China .
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology , Ministry of Education , College of Chemistry , Sichuan University , Chengdu 610064 , China .
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22
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Chou H, Leow D, Tan C. Recent Advances in Chiral Guanidine‐Catalyzed Enantioselective Reactions. Chem Asian J 2019; 14:3803-3822. [DOI: 10.1002/asia.201901183] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 09/27/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Hsiao‐Chieh Chou
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
| | - Dasheng Leow
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
| | - Choon‐Hong Tan
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
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23
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Lang J, Li Y, Kang T, Feng X, Liu X. Organocatalytic Asymmetric Michael/Dieckmann Cyclization Reaction of Alkynones To Construct Spirocyclopentene Oxindoles. Org Lett 2019; 21:6897-6902. [DOI: 10.1021/acs.orglett.9b02519] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Jiawen Lang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yi Li
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Tengfei Kang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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24
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Shan C, Zhang T, Xiong Q, Yan H, Bai R, Lan Y. Hydrogen‐Bond‐Induced Chiral Axis Construction: Theoretical Study of Cinchonine–Thiourea‐Catalyzed Enantioselective Intramolecular Cycloaddition. Chem Asian J 2019; 14:2731-2736. [DOI: 10.1002/asia.201900624] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 06/10/2019] [Indexed: 12/23/2022]
Affiliation(s)
- Chunhui Shan
- Postdoctoral Station of Biomedical EngineeringChongqing University Chongqing 400030 P.R. China
| | - Tao Zhang
- School of Chemistry and Chemical EngineeringChongqing Key Laboratory of Theoretical and Computational ChemistryChongqing University Chongqing 400030 P.R. China
| | - Qin Xiong
- School of Chemistry and Chemical EngineeringChongqing Key Laboratory of Theoretical and Computational ChemistryChongqing University Chongqing 400030 P.R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug, ResearchSchool of Pharmaceutical SciencesChongqing University Chongqing 400030 P.R. China
| | - Ruopeng Bai
- School of Chemistry and Chemical EngineeringChongqing Key Laboratory of Theoretical and Computational ChemistryChongqing University Chongqing 400030 P.R. China
| | - Yu Lan
- School of Chemistry and Chemical EngineeringChongqing Key Laboratory of Theoretical and Computational ChemistryChongqing University Chongqing 400030 P.R. China
- College of Chemistry and Molecular EngineeringZhengzhou University Zhengzhou 450001 P.R. China
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25
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Xie L, Dong S, Zhang Q, Feng X, Liu X. Asymmetric construction of dihydrobenzofuran-2,5-dione derivatives via desymmetrization of p-quinols with azlactones. Chem Commun (Camb) 2019; 55:87-90. [DOI: 10.1039/c8cc08985j] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
3-Amino-benzofuran-2,5-diones containing a chiral amino acid residue were achieved through BG-1·HBPh4 catalyzed enantioselective Michael addition/lactonization cascade reaction of p-quinols with azlactones.
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Affiliation(s)
- Lihua Xie
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Qian Zhang
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
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26
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Dong S, Feng X, Liu X. Chiral guanidines and their derivatives in asymmetric synthesis. Chem Soc Rev 2018; 47:8525-8540. [DOI: 10.1039/c7cs00792b] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
This article reviews current achievements of chiral guanidines and their derivatives in organocatalysis, and updates versatile guanidine–metal salt combinations in asymmetric catalytic reactions.
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Affiliation(s)
- Shunxi Dong
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
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