1
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Shi S, Gu M, Chen D, Li R, Shen Z, Huang J, Yan W. Organocatalytic enantio- and diastereoselective synthesis of trifluoro-ethylamine allenoate derivatives containing axial and central chiralities. Chem Commun (Camb) 2024; 60:11116-11119. [PMID: 39264294 DOI: 10.1039/d4cc03297g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2024]
Abstract
Herein, we report an example of a stereoselective γ-addition reaction of trifluoromethyl ketimines to 1-alkynyl ketones mediated by an isothiourea, BTM, under mild conditions, which afforded tetrasubstituted allenes with central chiralities in high yields (up to 94% yield), good enantioselectivities (up to 91% ee), and excellent diastereoselectivities (all >20 : 1 dr). In addition, the BTM-catalyzed γ-addition reaction was successfully applied to the gram-scale reaction, and an unexpected benzopyrrolothiazine derivative was successfully converted, albeit racemic.
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Affiliation(s)
- Siyu Shi
- The Institute of Pharmacology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Mengyun Gu
- The Institute of Pharmacology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Danna Chen
- Department of Hematology, Guangzhou First People's Hospital, Institute of Blood Transfusion and Hematology, Guangzhou Medical University, Guangzhou, Guangdong, China.
| | - Ruya Li
- The Affiliated Hospital of Guangdong Medical University, Guangdong, China
| | - Zhiqiang Shen
- The Institute of Pharmacology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China.
- Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou Gansu, 730000, China
| | - Jinqi Huang
- Department of Hematology, Guangzhou First People's Hospital, Institute of Blood Transfusion and Hematology, Guangzhou Medical University, Guangzhou, Guangdong, China.
| | - Wenjin Yan
- The Institute of Pharmacology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China.
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2
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Ren Y, Du M, Peng Z, Zheng C, Zhao G. Asymmetric aza-Henry reaction toward trifluoromethyl β-nitroamines and biological investigation of their adamantane-type derivatives. Front Chem 2024; 12:1398946. [PMID: 38800577 PMCID: PMC11116722 DOI: 10.3389/fchem.2024.1398946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 04/17/2024] [Indexed: 05/29/2024] Open
Abstract
Amino acid-derived quaternary ammonium salts were successfully applied in the asymmetric aza-Henry reaction of nitromethane to N-Boc trifluoromethyl ketimines. α-Trifluoromethyl β-nitroamines were synthesized in good to excellent yields with moderate to good enantioselectivities. This reaction is distinguished by its mild conditions, low catalyst loading (1 mol%), and catalytic base. It also proceeded on a gram scale without loss of enantioselectivity. The products were transformed to a series of adamantane-type compounds containing chiral trifluoromethylamine fragments. The potent anticancer activities of these compounds against liver cancer HepG2 and melanoma B16F10 were evaluated. Six promising compounds with notable efficacy have potential for further development.
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Affiliation(s)
- Yi Ren
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Mengyuan Du
- Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Ziyu Peng
- Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Changwu Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Gang Zhao
- Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
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3
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Jana S, Telu S, Jakobsson JE, Yang BY, Pike VW. Copper(I)-free syntheses of [ 11C/ 18F]trifluoromethyl ketones from alkyl or aryl esters and [ 11C/ 18F]fluoroform. Chem Commun (Camb) 2024; 60:4589-4592. [PMID: 38577766 PMCID: PMC11047764 DOI: 10.1039/d4cc00465e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Herein, we report a copper(I)-free method for labeling the trifluoroacetyl group with positron-emitting carbon-11 (t1/2 = 20.4 min) or fluorine-18 (t1/2 = 109.8 min) as part of our exploration of radiolabeled fluoroforms to access new radiolabeled chemotypes of interest for tracer development. Treatment of alkyl esters and aryl esters, containing electron-donating or electron-withdrawing groups, with [11C/18F]fluoroform in the presence of strong base, gave [11C/18F]trifluoromethyl ketones as novel radiolabeling synthons in moderate to high yields within 15 minutes.
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Affiliation(s)
- Susovan Jana
- Molecular Imaging Branch, NIMH, National Institutes of Health, 10 Center Dr, Bethesda, Maryland 20892, USA.
| | - Sanjay Telu
- Molecular Imaging Branch, NIMH, National Institutes of Health, 10 Center Dr, Bethesda, Maryland 20892, USA.
| | - Jimmy E Jakobsson
- Molecular Imaging Branch, NIMH, National Institutes of Health, 10 Center Dr, Bethesda, Maryland 20892, USA.
| | - Bo Yeun Yang
- Molecular Imaging Branch, NIMH, National Institutes of Health, 10 Center Dr, Bethesda, Maryland 20892, USA.
| | - Victor W Pike
- Molecular Imaging Branch, NIMH, National Institutes of Health, 10 Center Dr, Bethesda, Maryland 20892, USA.
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4
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Wei J, Du Z, Wang X, Ji C, Li L, You Y. Palladium-catalyzed enantioselective arylation of trichloro- or tri-/difluoroacetaldimine precursors. Chem Commun (Camb) 2024; 60:3303-3306. [PMID: 38426541 DOI: 10.1039/d4cc00022f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
A palladium-catalyzed asymmetric α-arylation of N-carbamoyl imine precursors containing CCl3, CF3 and CF2H is presented. This protocol provides facile access to a series of chiral α-aryl trichloroethylamines bearing various functional groups, with moderate to high yields (40-82% yield) and high enantioselectivity (80-99% ee).
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Affiliation(s)
- Jian Wei
- School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Province Key Laboratory of Value-Added Catalytic Conversion and Reaction Engineering, Hefei 230009, P. R. China.
| | - Zhongjian Du
- School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Province Key Laboratory of Value-Added Catalytic Conversion and Reaction Engineering, Hefei 230009, P. R. China.
| | - Xu Wang
- School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Province Key Laboratory of Value-Added Catalytic Conversion and Reaction Engineering, Hefei 230009, P. R. China.
| | - Chenlei Ji
- School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Province Key Laboratory of Value-Added Catalytic Conversion and Reaction Engineering, Hefei 230009, P. R. China.
| | - Longji Li
- School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Province Key Laboratory of Value-Added Catalytic Conversion and Reaction Engineering, Hefei 230009, P. R. China.
- Department of Nuclear Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Yang'en You
- School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Province Key Laboratory of Value-Added Catalytic Conversion and Reaction Engineering, Hefei 230009, P. R. China.
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5
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Liu Y, Zhou T, Xuan L, Lin Y, Li F, Wang H, Lyu J, Yan Q, Zhou H, Wang W, Chen FE. Visible-Light-Driven C,N-Selective Heteroarylation of N-Fluoroalkyl Hydroxylamine Reagents with Quinoxalin-2(1 H)-ones. Org Lett 2023. [PMID: 37991496 DOI: 10.1021/acs.orglett.3c03594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Herein, we disclose a direct and powerful strategy for the synthesis of highly valuable α-trifluoromethylamine and N-trifluoroethylamine derivatives from a visible-light-promoted C,N-selective heteroarylation of N-trifluoroethyl hydroxylamine reagents with quinoxalin-2(1H)-ones under ambient conditions. The chemoselectivity of the process (trifluoroalkylation or N-trifluoroethylamination) can easily be dictated and modulated by a selection of N-trifluoroethyl hydroxylamine substrates. The key to success is the protecting group on the N atom of hydroxylamine reagents, which can control the process of 1,2-H shift of the in situ-generated N-trifluoroethyl radical. Remarkable features of this method include mild conditions, easy operation, high selectivity, and excellent functional group tolerability. More importantly, the trifluoroalkylated products can be readily derivatized into other interesting imidazo-fused heterocycles that would be of great potential for the exploitation of pharmaceutically relevant molecules.
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Affiliation(s)
- Yang Liu
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Tongyao Zhou
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Liangming Xuan
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Yanchun Lin
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Fuqi Li
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Haifeng Wang
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Jian Lyu
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Qiongjiao Yan
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Hui Zhou
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health. College of Chemistry, Central China Normal University (CCNU), Wuhan 430079, P. R. China
| | - Wei Wang
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Fen-Er Chen
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China
- Shanghai Engineering Center of Industrial Catalysis for Chiral Drugs, Shanghai 200433, P. R. China
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6
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Zhao Y, Luo Y, Liu J, Zheng C, Zhao G. Multiple Hydrogen-Bonding Catalysts Enhance the Asymmetric Cyanation of Ketimines and Aldimines. Chemistry 2023; 29:e202302061. [PMID: 37463871 DOI: 10.1002/chem.202302061] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/18/2023] [Accepted: 07/18/2023] [Indexed: 07/20/2023]
Abstract
A highly enantioselective cyanation of imines (up to >99 % ee) has been developed using well-designed C2 -symmetric hydrogen bonding catalysts. The catalytic strategy was characterized with low catalyst loading (0.1-1 mol %), easily accessible catalysts with diverse functional groups, and catalytic base additives. A wide range of imines, including the challenging N-Boc and N-Cbz protected ketimines and aldimines, as well as fluoroalkylated ketimines, were investigated under mild conditions to afford the products with good to excellent yields (up to 99 % yield) and high enantioselectivity (up to >99 % ee). Control experiments revealed that the multiple hydrogen bonding catalysts enhanced the reactivity and enantioselectivity of the Strecker reaction initiated by the base.
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Affiliation(s)
- Yunhui Zhao
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, 411201, P. R. China
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecular, Ministry of Education, Hunan University of Science and Technology, Xiangtan, Hunan, 411201, P. R. China
| | - Yueyang Luo
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, 411201, P. R. China
| | - Jun Liu
- Key Laboratory of Synthetic Chemistry of Natural Substances Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
| | - Changwu Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, P. R. China
| | - Gang Zhao
- Key Laboratory of Synthetic Chemistry of Natural Substances Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
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7
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Racochote S, Naweephattana P, Surawatanawong P, Kuhakarn C, Leowanawat P, Reutrakul V, Soorukram D. Base-catalyzed diastereodivergent thia-Michael addition to chiral β-trifluoromethyl-α,β-unsaturated N-acylated oxazolidin-2-ones. Org Biomol Chem 2023; 21:7180-7187. [PMID: 37624045 DOI: 10.1039/d3ob00999h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
Base-catalyzed diastereodivergent thia-Michael addition of thiols to chiral β-trifluoromethyl-α,β-unsaturated N-acylated oxazolidin-2-ones is reported. By tuning the base-catalyst (i-Pr2NEt, DABCO, or P2-t-Bu), a range of chiral thia-Michael adducts was synthesized in good yields with high diastereoselectivities. A plausible mechanism was proposed on the basis of the experimental results. This work is complementary to the existing methods offering advantages, e.g., switchable diastereoselectivity using a readily synthesized chiral starting material, a cheap and readily available base catalyst, and a simple and practical operation, enabling synthetic application in organic synthesis.
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Affiliation(s)
- Sasirome Racochote
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand.
| | - Phiphob Naweephattana
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand.
| | - Panida Surawatanawong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand.
| | - Chutima Kuhakarn
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand.
| | - Pawaret Leowanawat
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand.
| | - Vichai Reutrakul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand.
| | - Darunee Soorukram
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand.
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8
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Wang YZ, Hu L, Bai ST, Zhang X. Ru-Catalyzed Asymmetric Reductive Amination of Aryl-Trifluoromethyl Ketones for Synthesis of Primary α-(Trifluoromethyl)arylmethylamines. Org Lett 2023. [PMID: 37393577 DOI: 10.1021/acs.orglett.3c01734] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
The ruthenium-catalyzed asymmetric reductive amination of aryl-trifluoromethyl ketones affording high value primary α-(trifluoromethyl)arylmethylamines using cheap NH4OAc as the nitrogen source and H2 as the reductant is reported. This user-friendly and simple catalytic method tolerates various aromatic functions with electron-withdrawing or -donating substituents at the para- or meta-positions and as well challenging heteroaromatic functions, yielding primary α-(trifluoromethyl)arylmethylamines with excellent chemoselectivities, enantioselectivities, and useful yields (80-97% ee, 51-92% isolated yields). Finally, scalable and concise synthesis of key drug intermediates using this methodology is presented.
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Affiliation(s)
- Yuan-Zheng Wang
- Department of Chemistry and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
| | - Le'an Hu
- Department of Chemistry and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
| | - Shao-Tao Bai
- Department of Chemistry and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
- Institute of Carbon-Neutral Technology and Center for Carbon-Neutrality Catalysis and Engineering, Shenzhen Polytechnic, No. 7098 Liuxian Avenue, Nanshan District, Shenzhen 518055, China
| | - Xumu Zhang
- Department of Chemistry and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
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9
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Liu Y, Feng A, Zhu R, Zhang D. New insights into the mechanism of synergetic photoredox/copper(i)-catalyzed carbocyanation of 1,3-dienes: a DFT study. Chem Sci 2023; 14:4580-4588. [PMID: 37152251 PMCID: PMC10155915 DOI: 10.1039/d3sc00002h] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 03/26/2023] [Indexed: 03/31/2023] Open
Abstract
This work presents a DFT-based computational study to understand the mechanism, and regio- and enantioselectivities in the synergetic photoredox/copper(i)-catalyzed carbocyanation of 1,3-dienes with alkyl redox-active esters. The calculated results show an unprecedented copper catalytic mechanism, where the reaction follows a catalytic cycle involving CuI-only catalysis, instead of a Cu(i)/Cu(ii)/Cu(iii)/Cu(i) cycle as proposed in the experimental study. Moreover, it is found that the critical step involves the reaction of the cyanocopper(i) species with an allyl cation rather than the cyanocopper(ii) species reacting with an allyl radical as proposed in the experiment, and that the photocatalyst is regenerated via single electron transfer from the allyl radical to the oxidized photocatalyst. In the newly proposed photoredox/copper(i) catalysis, the reaction consists of four stages: (i) generation of the copper(i) active catalyst, (ii) formation of an allyl radical with oxidative quenching of the photoexcited species, (iii) generation of an allylcopper complex accompanied by the regeneration of the photocatalyst, and (iv) formation of the allyl cyanide product with the regeneration of the copper(i) active catalyst. The cyanation of the allyl cation is calculated to be the regio- and enantioselectivity-determining step. The excellent regio- and stereoselectivities are attributed to the favorable CH-π interaction between the substrate and catalyst as well as the small distortion of the substrate.
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Affiliation(s)
- Yanhong Liu
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University Jinan 250100 P. R. China
- School of Radiology, Shandong First Medical University & Shandong Academy of Medical Sciences Taian 271016 P. R. China
| | - Aili Feng
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University Jinan 250100 P. R. China
| | - Rongxiu Zhu
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University Jinan 250100 P. R. China
| | - Dongju Zhang
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University Jinan 250100 P. R. China
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10
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Liu S, Zhang L, Xu L, Gao P, Duan XH, Guo LN. Fe-Catalyzed Alkylazidation of α-Trifluoromethylalkenes: An Access to Quaternary Stereocenters Containing CF 3 and N 3 Groups. Org Lett 2023. [PMID: 36815835 DOI: 10.1021/acs.orglett.3c00439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
A concise Fe-catalyzed alkylazidation of α-trifluoromethylalkenes via a C-C bond cleavage/radical addition/azidation cascade is described. This protocol features a broad substrate scope, excellent functional group compatibility, and the ability to be performed on a gram scale, thus offering a practical and step-economic approach to the synthetically useful tertiary α-trifluoromethyl azides.
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Affiliation(s)
- Shuai Liu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Lu Zhang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Liang Xu
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xin-jiang Bingtuan, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Pin Gao
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Xin-Hua Duan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Li Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
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11
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Cai W, Cai D, Liang H, Ren X, Zhao B. Asymmetric Biomimetic Transamination of Trifluoromethyl Ketones. J Org Chem 2023. [PMID: 36696680 DOI: 10.1021/acs.joc.2c02329] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
In the presence of chiral pyridoxamine 4b as the catalyst and 2,2-diphenylglycine (3) as the amine source, asymmetric biomimetic transamination of trifluoromethyl ketones produces optically active α-trifluoromethyl amines 6 in 81-98% yields with 88-95% ee's under mild conditions.
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Affiliation(s)
- Weiqi Cai
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, China
| | - Dongchen Cai
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, China
| | - Hanyu Liang
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, China
| | - Xinyi Ren
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, China
| | - Baoguo Zhao
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, China
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12
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Kim S, Richardson ADS, Modak A, Race NJ. Dual-Catalytic Enantioselective Allylation of N-(Heteroaromatic-methyl)imine Derivatives. J Org Chem 2022. [PMID: 36562778 DOI: 10.1021/acs.joc.2c02254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We report the dual-catalytic enantioselective allylic alkylation of 2-(pyridylmethyl)amine-derived ketimines with allylic carbonates. The reaction proceeds under mild reaction conditions to generate α-amino heteroaryl benzylamine stereocenters in good yield and enantioselectivity. Enantioselectivity is achieved through the use of a copper catalyst modified with chiral bisphosphine ligand (2S,4S)-bis(diphenylphosphino)pentane.
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Affiliation(s)
- Sangyun Kim
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Annika D S Richardson
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Atanu Modak
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Nicholas J Race
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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13
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Sumii Y, Iwasaki H, Fujihira Y, Mahmoud EM, Adachi H, Kagawa T, Cahard D, Shibata N. KHMDS/Triglyme Cryptate as an Alternative to Phosphazene Base in Stereodivergent Pentafluoroethylation of N-Sulfinylimines Using HFC-125. J Org Chem 2022; 87:15806-15819. [PMID: 36315641 DOI: 10.1021/acs.joc.2c01821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
A protocol for the stereodivergent pentafluoroethylation of N-sulfinylimines using HFC-125 with KHMDS/triglyme has been developed. Both diastereomers of the pentafluoroethylated amines can be selectively synthesized based on the presence or absence of triglyme. This additive-controlled protocol allows the KHMDS/triglyme cryptate to be a straightforward and cheap alternative to previously reported base-controlled stereodivergent trifluoromethylation using potassium hexamethyldisilazide (KHMDS) versus P4-tBu.
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Affiliation(s)
- Yuji Sumii
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya 466-8555, Japan
| | - Hiroto Iwasaki
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya 466-8555, Japan
| | - Yamato Fujihira
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya 466-8555, Japan
| | - Elsayed M Mahmoud
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya 466-8555, Japan.,Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| | - Hiroaki Adachi
- Tosoh Finechem Corporation, 4988, Kaiseicho, Shunan 746-0006, Japan
| | - Takumi Kagawa
- Tosoh Finechem Corporation, 4988, Kaiseicho, Shunan 746-0006, Japan
| | - Dominique Cahard
- CNRS UMR 6014 COBRA, Normandie Université, 76821 Mont Saint Aignan, France
| | - Norio Shibata
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya 466-8555, Japan.,Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya 466-8555, Japan
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14
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Kojima Y, Nishii Y, Hirano K. Ligand-Enabled Copper-Catalyzed Regio- and Stereoselective Allylboration of 1-Trifluoromethylalkenes. Org Lett 2022; 24:7450-7454. [DOI: 10.1021/acs.orglett.2c03024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Affiliation(s)
- Yuki Kojima
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yuji Nishii
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Koji Hirano
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
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15
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Hu M, Tan BB, Ge S. Enantioselective Cobalt-Catalyzed Hydroboration of Fluoroalkyl-Substituted Alkenes to Access Chiral Fluoroalkylboronates. J Am Chem Soc 2022; 144:15333-15338. [PMID: 35953077 PMCID: PMC9434995 DOI: 10.1021/jacs.2c06488] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Selective defluoroborylation and asymmetric hydroboration
reactions
of fluoroalkyl-substituted terminal alkenes with pinacolborane (HBpin)
have been developed with cobalt catalysts generated from Co(acac)2 and bisphosphine ligands. A variety of fluoroalkyl-substituted
terminal alkenes undergo this enantioselective hydroboration, affording
the corresponding chiral alkylboronates containing fluoroalkyl-substituted
stereogenic carbon centers with high enantioselectivity (up to 98% ee). This asymmetric hydroboration provides a versatile
foundation for the synthesis of a variety of chiral organofluorine
compounds containing fluoroalkyl-substituted stereogenic carbon centers.
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Affiliation(s)
- Ming Hu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Boon Beng Tan
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Shaozhong Ge
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
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16
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Zhu C, Zhang H, Liu Q, Chen K, Liu ZY, Feng C. Nickel-Catalyzed anti-Markovnikov Hydroalkylation of Trifluoromethylalkenes. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02052] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Chuan Zhu
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Heng Zhang
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Qian Liu
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Kai Chen
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Ze-Yao Liu
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Chao Feng
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
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17
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Uchikura T, Aruga K, Suzuki R, Akiyama T. Enantioselective Friedel-Crafts Alkylation Reaction of Pyrroles with N-Unprotected Alkynyl Trifluoromethyl Ketimines. Org Lett 2022; 24:4699-4703. [PMID: 35728276 DOI: 10.1021/acs.orglett.2c01972] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Developed herein is an enantioselective Friedel-Crafts alkylation reaction of N-unprotected alkynyl trifluoromethyl ketimines with pyrroles catalyzed by chiral phosphoric acid to furnish chiral primary α-trifluoromethyl-α-(2-pyrrolyl)propargylamines with high enantioselectivity. Transformation of the alkynyl group of the adducts afforded optically active α-trifluoromethylated amines bearing various substituents such as alkyl, alkenyl, enyne, and triazole without loss of optical purity.
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Affiliation(s)
- Tatsuhiro Uchikura
- Department of Chemistry, Faculty of Science, Gakushuin University, Mejiro, Toshima-ku, Tokyo 171-8588, Japan
| | - Kureha Aruga
- Department of Chemistry, Faculty of Science, Gakushuin University, Mejiro, Toshima-ku, Tokyo 171-8588, Japan
| | - Riku Suzuki
- Department of Chemistry, Faculty of Science, Gakushuin University, Mejiro, Toshima-ku, Tokyo 171-8588, Japan
| | - Takahiko Akiyama
- Department of Chemistry, Faculty of Science, Gakushuin University, Mejiro, Toshima-ku, Tokyo 171-8588, Japan
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18
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Hsu C, Gonçalves CR, Tona V, Pons A, Kaiser M, Maulide N. Leveraging Electron‐Deficient Iminium Intermediates in a General Synthesis of Valuable Amines. Angew Chem Int Ed Engl 2022; 61:e202115435. [PMID: 35103377 PMCID: PMC9311413 DOI: 10.1002/anie.202115435] [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: 11/12/2021] [Indexed: 11/11/2022]
Abstract
The development of reactions converting alkenes and alkynes into valuable building blocks remains one of the main goals of synthetic chemistry. Herein, we present the leveraging of highly electron‐deficient iminium ions, rare and fleeting intermediates, into a general amine synthesis. This enables the preparation of amines bearing e.g. valuable α‐trifluoromethyl moieties under mild conditions. This broad concept is highlighted by the late‐stage amination of quinine into a biologically interesting new analogue.
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Affiliation(s)
- Che‐Sheng Hsu
- University of Vienna Institute of Organic Chemistry Währinger Strasse 38 1090 Vienna Austria
| | - Carlos R. Gonçalves
- University of Vienna Institute of Organic Chemistry Währinger Strasse 38 1090 Vienna Austria
| | - Veronica Tona
- University of Vienna Institute of Organic Chemistry Währinger Strasse 38 1090 Vienna Austria
| | - Amandine Pons
- University of Vienna Institute of Organic Chemistry Währinger Strasse 38 1090 Vienna Austria
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute Socinstrasse 57 4002 Basel Switzerland
| | - Nuno Maulide
- University of Vienna Institute of Organic Chemistry Währinger Strasse 38 1090 Vienna Austria
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19
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Hsu C, Gonçalves CR, Tona V, Pons A, Kaiser M, Maulide N. Nutzung von elektronenarmen Iminiumintermediaten zur Synthese von wertvollen Aminen. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 134:e202115435. [PMID: 38505700 PMCID: PMC10946883 DOI: 10.1002/ange.202115435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Indexed: 11/09/2022]
Abstract
AbstractDie Entwicklung von Reaktionen zur Umwandlung von Alkenen und Alkinen in wertvolle Bausteine ist nach wie vor eines der Hauptziele in der synthetischen Chemie. In dieser Arbeit berichten wir von der Nutzbarmachung von stark elektronenarmen, seltenen und kurzlebigen Iminiumionen zur Synthese von Aminen. Dies ermöglicht die milde Herstellung von Aminen mit z. B. trifluormethylierten Einheiten. Dieses umfassende Konzept wird durch die Aminierung von Chinin zu einem biologisch interessanten neuen Analogon verdeutlicht.
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Affiliation(s)
- Che‐Sheng Hsu
- Institut für Organische ChemieUniversität WienWähringer Strasse 381090WienÖsterreich
| | - Carlos R. Gonçalves
- Institut für Organische ChemieUniversität WienWähringer Strasse 381090WienÖsterreich
| | - Veronica Tona
- Institut für Organische ChemieUniversität WienWähringer Strasse 381090WienÖsterreich
| | - Amandine Pons
- Institut für Organische ChemieUniversität WienWähringer Strasse 381090WienÖsterreich
| | - Marcel Kaiser
- Schweizerisches Tropen- und Public-Health-InstitutSocinstrasse 574002BaselSchweiz
| | - Nuno Maulide
- Institut für Organische ChemieUniversität WienWähringer Strasse 381090WienÖsterreich
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20
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Xing SN, Hua YZ, Yang XC, Du SS, Jia SK, Mei GJ, Wang MC. Catalytic Asymmetric Umpolung Tandem Reactions of Hemiacetals via Dinuclear Zinc Cooperative Catalysis. Org Lett 2022; 24:3909-3914. [PMID: 35467355 DOI: 10.1021/acs.orglett.2c00913] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The umpolung activity of hemiacetals serving as α-carbon nucleophiles has been reported via dinuclear zinc cooperative catalysis. This umpolung strategy has been applied to catalytic asymmetric tandem reactions of 1-tosylindoline-2,3-diols with β,γ-unsaturated-α-keto compounds, providing a broad series of structurally diverse tetrahydrofuran spirooxindoles and dihydrofurans, respectively. In addition, products could be transformed to quinazoline and quinoline derivatives.
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Affiliation(s)
- Sheng-Nan Xing
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou City, Henan 450000, P. R. China
| | - Yuan-Zhao Hua
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou City, Henan 450000, P. R. China
| | - Xiao-Chao Yang
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou City, Henan 450000, P. R. China
| | - Si-Si Du
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou City, Henan 450000, P. R. China
| | - Shi-Kun Jia
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou City, Henan 450000, P. R. China
| | - Guang-Jian Mei
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou City, Henan 450000, P. R. China
| | - Min-Can Wang
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou City, Henan 450000, P. R. China
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21
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Nam D, Tinoco A, Shen Z, Adukure RD, Sreenilayam G, Khare SD, Fasan R. Enantioselective Synthesis of α-Trifluoromethyl Amines via Biocatalytic N-H Bond Insertion with Acceptor-Acceptor Carbene Donors. J Am Chem Soc 2022; 144:2590-2602. [PMID: 35107997 PMCID: PMC8855427 DOI: 10.1021/jacs.1c10750] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
![]()
The biocatalytic
toolbox has recently been expanded to include
enzyme-catalyzed carbene transfer reactions not occurring in Nature.
Herein, we report the development of a biocatalytic strategy for the
synthesis of enantioenriched α-trifluoromethyl amines through
an asymmetric N–H carbene insertion reaction catalyzed by engineered
variants of cytochrome c552 from Hydrogenobacter thermophilus. Using a combination of protein and substrate engineering, this
metalloprotein scaffold was redesigned to enable the synthesis of
chiral α-trifluoromethyl amino esters with up to >99% yield
and 95:5 er using benzyl 2-diazotrifluoropropanoate as the carbene
donor. When the diazo reagent was varied, the enantioselectivity of
the enzyme could be inverted to produce the opposite enantiomers of
these products with up to 99.5:0.5 er. This methodology is applicable
to a broad range of aryl amine substrates, and it can be leveraged
to obtain chemoenzymatic access to enantioenriched β-trifluoromethyl-β-amino
alcohols and halides. Computational analyses provide insights into
the interplay of protein- and reagent-mediated control on the enantioselectivity
of this reaction. This work introduces the first example of a biocatalytic
N–H carbenoid insertion with an acceptor–acceptor carbene
donor, and it offers a biocatalytic solution for the enantioselective
synthesis of α-trifluoromethylated amines as valuable synthons
for medicinal chemistry and the synthesis of bioactive molecules.
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Affiliation(s)
- Donggeon Nam
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Antonio Tinoco
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Zhuofan Shen
- Department of Chemistry and Chemical Biology, Rutgers University, New Brunswick, New Jersey 08854, United States
| | - Ronald D Adukure
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | | | - Sagar D Khare
- Department of Chemistry and Chemical Biology, Rutgers University, New Brunswick, New Jersey 08854, United States
| | - Rudi Fasan
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
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22
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Luo X, Wang S, Lei A. Electrochemical‐induced hydroxysulfonylation of α‐CF3 alkenes to access tertiary β‐hydroxysulfones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101393] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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23
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Fan T, Liu Y. Recent Advances in Synthesis of Chiral Tertiary Amines via Asymmetric Catalysis Involving Metal-Hydride Species. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202206032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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24
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Belen’kii LI, Gazieva GA, Evdokimenkova YB, Soboleva NO. The literature of heterocyclic chemistry, Part XX, 2020. ADVANCES IN HETEROCYCLIC CHEMISTRY 2022. [DOI: 10.1016/bs.aihch.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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25
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Liu YL, Wang XP, Wei J, Li Y. Synthesis of oxindoles bearing a stereogenic 3-fluorinated carbon center from 3-fluorooxindoles. Org Biomol Chem 2021; 20:538-552. [PMID: 34935824 DOI: 10.1039/d1ob01964c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
3,3-Disubstituted oxindoles bearing a stereogenic 3-fluorinated carbon center are privileged structural motifs present in many bioactive molecules. The straightforward functionalization of 3-fluorooxindoles constitutes a powerful method for the synthesis of 3-fully substituted 3-fluorooxindoles, taking advantage of the ease of preparation of 3-fluorooxindoles with different substitution patterns and the atom efficiency of chemical reactions. In the past decade, many papers have appeared on the synthesis of 3-fully substituted 3-fluorooxindoles from 3-fluorooxindoles. Importantly, many asymmetric catalytic methods have been developed for the enantioselective synthesis of these valuable compounds. This review summarizes the achievements in this area, and overviews synthetic opportunities that still exist.
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Affiliation(s)
- Yong-Liang Liu
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, China.
| | - Xiao-Ping Wang
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, China.
| | - Jie Wei
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, China.
| | - Ya Li
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, China. .,Shanghai Frontiers Science Research Center for Druggability of Cardiovascular noncoding RNA, Institute for Frontier Medical Technology, Shanghai University of Engineering Science, Shanghai, 201620, China
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26
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Zhao Y, Wang X, Yao R, Li C, Xu Z, Zhang L, Han G, Hou J, Liu Y, Song Y. Iron‐Catalyzed Alkene Trifluoromethylation in Tandem with Phenol Dearomatizing Spirocyclization: Regioselective Construction of Trifluoromethylated Spirocarbocycles. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yilin Zhao
- Tianjin Key Laboratory of Technologies Enabling Development of Clinical Therapeutics and Diagnostics School of Pharmacy The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics School of Basic Medical Sciences Tianjin Medical University Tianjin 300070 People's Republic of China
| | - Xue Wang
- Tianjin Key Laboratory of Technologies Enabling Development of Clinical Therapeutics and Diagnostics School of Pharmacy The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics School of Basic Medical Sciences Tianjin Medical University Tianjin 300070 People's Republic of China
| | - Ru Yao
- Tianjin Key Laboratory of Technologies Enabling Development of Clinical Therapeutics and Diagnostics School of Pharmacy The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics School of Basic Medical Sciences Tianjin Medical University Tianjin 300070 People's Republic of China
| | - Chengwen Li
- Tianjin Key Laboratory of Technologies Enabling Development of Clinical Therapeutics and Diagnostics School of Pharmacy The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics School of Basic Medical Sciences Tianjin Medical University Tianjin 300070 People's Republic of China
| | - Zelin Xu
- Tianjin Key Laboratory of Technologies Enabling Development of Clinical Therapeutics and Diagnostics School of Pharmacy The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics School of Basic Medical Sciences Tianjin Medical University Tianjin 300070 People's Republic of China
| | - Liming Zhang
- Tianjin Key Laboratory of Technologies Enabling Development of Clinical Therapeutics and Diagnostics School of Pharmacy The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics School of Basic Medical Sciences Tianjin Medical University Tianjin 300070 People's Republic of China
| | - Guifang Han
- Tianjin Key Laboratory of Technologies Enabling Development of Clinical Therapeutics and Diagnostics School of Pharmacy The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics School of Basic Medical Sciences Tianjin Medical University Tianjin 300070 People's Republic of China
| | - Jingli Hou
- Tianjin Key Laboratory of Technologies Enabling Development of Clinical Therapeutics and Diagnostics School of Pharmacy The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics School of Basic Medical Sciences Tianjin Medical University Tianjin 300070 People's Republic of China
| | - Yangping Liu
- Tianjin Key Laboratory of Technologies Enabling Development of Clinical Therapeutics and Diagnostics School of Pharmacy The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics School of Basic Medical Sciences Tianjin Medical University Tianjin 300070 People's Republic of China
| | - Yuguang Song
- Tianjin Key Laboratory of Technologies Enabling Development of Clinical Therapeutics and Diagnostics School of Pharmacy The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics School of Basic Medical Sciences Tianjin Medical University Tianjin 300070 People's Republic of China
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27
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Huang S, Tong FF, Bai DC, Zhang GP, Jiang YJ, Zhang B, Leng X, Guo YL, Wan XL, Zhang X, Ding CH, Hou XL. Regio- and enantioselective umpolung gem-difluoroallylation of hydrazones via palladium catalysis enabled by N-heterocyclic carbene ligand. Nat Commun 2021; 12:6551. [PMID: 34772944 PMCID: PMC8589859 DOI: 10.1038/s41467-021-26667-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 10/11/2021] [Indexed: 11/09/2022] Open
Abstract
The enantioselective construction of C-CF2R (R: alkyl or fluoroalkyl) bonds has attracted the attention of synthetic chemists because of the importance of chiral fluorinated compounds in life and materials sciences. Catalytic asymmetric fluoroalkylation has mainly been realized under organocatalysis and Lewis acid catalysis, with substrates limited to carbonyl compounds. Few examples using transition-metal catalysis exist, owing to side reactions including decomposition and isomerization of fluoroalkylating reagents. Herein we report umpolung asymmetric difluoroallylation of hydrazones with 3-bromo-3,3-difluoropropene (BDFP) under palladium catalysis. Difluoroallylation products having quaternary chiral carbon centers are afforded in good yields with high α/γ- and enantioselectivities. The usefulness of the reaction products is demonstrated and an inner-sphere mechanism of the reaction is proposed. The use of chiral N-heterocyclic carbene as ligand is the key for the selectivities as well as the productivity of the reaction.
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Affiliation(s)
- Shuai Huang
- grid.422150.00000 0001 1015 4378State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry (SIOC), Chinese Academy of Sciences (CAS), Shanghai, China
| | - Fei-Fei Tong
- grid.422150.00000 0001 1015 4378Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, SIOC, CAS, Shanghai, China
| | - Da-Chang Bai
- grid.422150.00000 0001 1015 4378State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry (SIOC), Chinese Academy of Sciences (CAS), Shanghai, China
| | - Gao-Peng Zhang
- grid.422150.00000 0001 1015 4378State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry (SIOC), Chinese Academy of Sciences (CAS), Shanghai, China
| | - Yang-Jie Jiang
- grid.422150.00000 0001 1015 4378State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry (SIOC), Chinese Academy of Sciences (CAS), Shanghai, China
| | - Bo Zhang
- grid.422150.00000 0001 1015 4378State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry (SIOC), Chinese Academy of Sciences (CAS), Shanghai, China
| | - Xuebing Leng
- grid.422150.00000 0001 1015 4378State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry (SIOC), Chinese Academy of Sciences (CAS), Shanghai, China
| | - Ying-Long Guo
- grid.422150.00000 0001 1015 4378State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry (SIOC), Chinese Academy of Sciences (CAS), Shanghai, China
| | - Xiao-Long Wan
- grid.422150.00000 0001 1015 4378Department of Analytic Chemistry, Center for Excellence in Molecular Synthesis, SIOC, CAS, Shanghai, China
| | - Xingang Zhang
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, SIOC, CAS, Shanghai, China.
| | - Chang-Hua Ding
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai, China.
| | - Xue-Long Hou
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry (SIOC), Chinese Academy of Sciences (CAS), Shanghai, China. .,Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, SIOC, CAS, Shanghai, China.
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28
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Diversifying Arena of Drug Synthesis: In the Realm of Lipase Mediated Waves of Biocatalysis. Catalysts 2021. [DOI: 10.3390/catal11111328] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Hydrolases, being most prominent enzymes used in industrial processes have left no stone unturned in fascinating the pharmaceutical industry. Lipases, being a part of acyl hydrolases are the ones that function similarly to esterases (except an interfacial action) wherein they generally catalyze the hydrolysis of ester bonds. Be it in terms of stereoselectivity or regioselectivity, lipases have manifested their promiscuous proficiency in rendering biocatalytic drug synthesis and intermediates thereof. Industrial utilization of lipases is prevalent since decades ago, but their distinctive catalytic competencies have rendered them suitable for maneuverability in various tides of biocatalytic industrial process development. Numbers of exquisite catalysts have been fabricated out of lipases using nanobiotechnology whereby enzyme reusability and robustness have been conferred to many of the organic synthesis procedures. This marks a considerable achievement of lipases in the second wave of biocatalysis. Furthermore, in the third wave an advent of genetic engineering has fostered an era of customized lipases for suitable needs. Be it stability or an enhanced efficacy, genetic engineering techniques have ushered an avenue for biocatalytic development of drugs and drug intermediates through greener processes using lipases. Even in the forthcoming concept of co-modular catalytic systems, lipases may be the frontiers because of their astonishing capability to act along with other enzymes. The concept may render feasibility in the development of cascade reactions in organic synthesis. An upcoming wave demands fulfilling the vision of tailored lipase whilst a far-flung exploration needs to be unveiled for various research impediments in rendering lipase as a custom fit biocatalyst in pharmaceutical industry.
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29
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Reshi NUD, Saptal VB, Beller M, Bera JK. Recent Progress in Transition-Metal-Catalyzed Asymmetric Reductive Amination. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04208] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Noor U Din Reshi
- Department of Chemistry and Center for Environmental Science, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Vitthal B. Saptal
- Department of Chemistry and Center for Environmental Science, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Matthias Beller
- Leibniz-Institut fr Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Jitendra K. Bera
- Department of Chemistry and Center for Environmental Science, Indian Institute of Technology Kanpur, Kanpur, 208016, India
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30
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Kojima Y, Miura M, Hirano K. Copper-Catalyzed Regio- and Enantioselective Hydroallylation of 1-Trifluoromethylalkenes: Effect of Crown Ether. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02947] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yuki Kojima
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University Suita, Osaka 565-0871, Japan
| | - Masahiro Miura
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
| | - Koji Hirano
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University Suita, Osaka 565-0871, Japan
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31
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Ye ZP, Gao J, Duan XY, Guan JP, Liu F, Chen K, Xiao JA, Xiang HY, Yang H. Electrochemical heterodifunctionalization of α-CF 3 alkenes to access α-trifluoromethyl-β-sulfonyl tertiary alcohols. Chem Commun (Camb) 2021; 57:8969-8972. [PMID: 34486594 DOI: 10.1039/d1cc03288g] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An unprecedented electrochemical heterodifunctionalization of α-CF3 alkenes with benzenesulfonyl hydrazides was accomplished in this work, wherein a β-sulfonyl and a α-hydroxyl group were simultaneously incorporated across the olefinic double bond in a single operation. Consequently, a series of potentially medicinally valuable and densely functionalized α-trifluoromethyl-β-sulfonyl tertiary alcohols were assembled under mild conditions. Electrochemically-driven oxidative 1,2-difunctionlization of electron-deficient alkenes well obviates the need for oxidizing reagents, thus rendering this protocol more eco-friendly.
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Affiliation(s)
- Zhi-Peng Ye
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.
| | - Jie Gao
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.
| | - Xin-Yu Duan
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.
| | - Jian-Ping Guan
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.
| | - Fang Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.
| | - Kai Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.
| | - Jun-An Xiao
- College of Chemistry and Materials Science, Nanning Normal University, Nanning 530001, Guangxi, P. R. China
| | - Hao-Yue Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China. .,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, Henan, P. R. China
| | - Hua Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.
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32
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Wu J, Wu H, Li X, Liu X, Zhao Q, Huang G, Zhang C. Copper-Catalyzed Highly Selective Protoboration of CF 3 -Containing 1,3-Dienes. Angew Chem Int Ed Engl 2021; 60:20376-20382. [PMID: 34146388 DOI: 10.1002/anie.202105896] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/02/2021] [Indexed: 12/15/2022]
Abstract
The copper-catalyzed highly selective protoboration of CF3 -containing conjugated diene with proton source and B2 Pin2 has been developed. This chemistry could suppress the well-known defluorination and provide borated reagents with an intact CF3 -group. Further studies indicated that the functional group tolerance of this chemistry is very well, and the products could be used as versatile precursors for different types of transformations. Importantly, using chiral diphosphine ligand, we have developed the first example for using such starting material to synthesis allylic boron-reagents which bearing a CF3 -containing chiral center. Notably, the reaction mechanism was intensively studied by DFT calculations, which could reveal the reason that defluorination was inhibited.
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Affiliation(s)
- Juanjuan Wu
- Institute of Molecular Plus, Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
| | - Hongli Wu
- Institute of Molecular Plus, Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
| | - Xinzhi Li
- Institute of Molecular Plus, Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
| | - Xinyu Liu
- Institute of Molecular Plus, Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
| | - Qian Zhao
- Institute of Molecular Plus, Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
| | - Genping Huang
- Institute of Molecular Plus, Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
| | - Chun Zhang
- Institute of Molecular Plus, Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
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33
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Wu J, Wu H, Li X, Liu X, Zhao Q, Huang G, Zhang C. Copper‐Catalyzed Highly Selective Protoboration of CF
3
‐Containing 1,3‐Dienes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Juanjuan Wu
- Institute of Molecular Plus Tianjin Key Laboratory of Molecular Optoelectronic Science Department of Chemistry School of Science Tianjin University Tianjin 300072 China
| | - Hongli Wu
- Institute of Molecular Plus Tianjin Key Laboratory of Molecular Optoelectronic Science Department of Chemistry School of Science Tianjin University Tianjin 300072 China
| | - Xinzhi Li
- Institute of Molecular Plus Tianjin Key Laboratory of Molecular Optoelectronic Science Department of Chemistry School of Science Tianjin University Tianjin 300072 China
| | - Xinyu Liu
- Institute of Molecular Plus Tianjin Key Laboratory of Molecular Optoelectronic Science Department of Chemistry School of Science Tianjin University Tianjin 300072 China
| | - Qian Zhao
- Institute of Molecular Plus Tianjin Key Laboratory of Molecular Optoelectronic Science Department of Chemistry School of Science Tianjin University Tianjin 300072 China
| | - Genping Huang
- Institute of Molecular Plus Tianjin Key Laboratory of Molecular Optoelectronic Science Department of Chemistry School of Science Tianjin University Tianjin 300072 China
| | - Chun Zhang
- Institute of Molecular Plus Tianjin Key Laboratory of Molecular Optoelectronic Science Department of Chemistry School of Science Tianjin University Tianjin 300072 China
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34
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Ramirez NP, Pisella G, Waser J. Cu(I)-Catalyzed gem-Aminoalkynylation of Diazo Compounds: Synthesis of Fluorinated Propargylic Amines. J Org Chem 2021; 86:10928-10938. [PMID: 34260244 DOI: 10.1021/acs.joc.1c01423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The gem-aminoalkynylation of fluorinated diazo compounds catalyzed by a simple Cu(I) salt is described. This three-component reaction allows the synthesis of propargylic amines with broad functional group tolerance. Both electron-rich and electron-poor anilines can be used as nucleophiles and alkyl-, aryl-, and silyl-substituted EthynylBenziodoXoles (EBX) as electrophiles.
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Affiliation(s)
- Nieves P Ramirez
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Guillaume Pisella
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
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35
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Wan LQ, Cao JG, Niu D, Zhang X. Cobalt-Catalyzed Umpolung Alkylation of Imines To Generate α-Branched Aliphatic Amines. Org Lett 2021; 23:3818-3822. [PMID: 33974795 DOI: 10.1021/acs.orglett.1c00835] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Here we report a general and mild approach to prepare α-branched aliphatic amines from imines. This method capitalizes on a cobalt-catalyzed umpolung alkylation of imines, employs easily available reaction partners, and demonstrates a broad substrate scope. Mechanistic studies suggest this transformation occurs by a radical pathway.
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Affiliation(s)
- Li-Qiang Wan
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering, Sichuan University, Chengdu, 610041, China
| | - Jin-Ge Cao
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering, Sichuan University, Chengdu, 610041, China
| | - Dawen Niu
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering, Sichuan University, Chengdu, 610041, China
| | - Xia Zhang
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering, Sichuan University, Chengdu, 610041, China
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36
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Wu X, Ren J, Shao Z, Yang X, Qian D. Transition-Metal-Catalyzed Asymmetric Couplings of α-Aminoalkyl Fragments to Access Chiral Alkylamines. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01545] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Xiaomei Wu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming 650091, People’s Republic of China
| | - Jiangtao Ren
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming 650091, People’s Republic of China
| | - Zhihui Shao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming 650091, People’s Republic of China
| | - Xiaodong Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming 650091, People’s Republic of China
| | - Deyun Qian
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming 650091, People’s Republic of China
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37
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Novel multi-functionalized fluorine-containing organometallics: Preparation and applications of tetrafluoroethylenated zinc reagent. J Fluor Chem 2021. [DOI: 10.1016/j.jfluchem.2021.109781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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