1
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Dongxu Z. Trifluoromethylated hydrazones and acylhydrazones as potent nitrogen-containing fluorinated building blocks. Beilstein J Org Chem 2023; 19:1741-1754. [PMID: 38025086 PMCID: PMC10667715 DOI: 10.3762/bjoc.19.127] [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: 09/02/2023] [Accepted: 11/03/2023] [Indexed: 12/01/2023] Open
Abstract
Nitrogen-containing organofluorine derivatives, which are prepared using fluorinated building blocks, are among the most important active fragments in various pharmaceutical and agrochemical products. This review focuses on the reactivity, synthesis, and applications of fluoromethylated hydrazones and acylhydrazones. It summarizes recent methodologies that have been used for the synthesis of various nitrogen-containing organofluorine compounds.
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Affiliation(s)
- Zhang Dongxu
- Department of Fire Protection Engineering, China Fire and Rescue Institute, Beijing 102202, P. R. of China
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2
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Liang RX, Chen JF, Huang YY, Yu YP, Zhang HY, Song YF, Tsui GC, Jia YX. Enantioselective Pd-catalyzed dearomative reductive Heck and domino Heck-Suzuki reactions of 2-CF 3-indoles. Chem Commun (Camb) 2022; 58:6200-6203. [PMID: 35506738 DOI: 10.1039/d2cc01435a] [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
Highly enantioselective palladium-catalyzed dearomative reductive Heck reaction and domino Heck-Suzuki reaction of 2-CF3-indoles have been developed. Using Pd(OAc)2/(R)-Synphos as the catalyst and Et3SiH as a hydride source, a variety of indolines bearing a 2-trifluoromethyl quaternary stereocenter were obtained via a dearomative reductive Heck reaction. Alternatively, using Pd(dba)2/phosphoramidite as the catalyst and Ar4BNa as a coupling partner, structurally diverse indolines containing two vicinal carbon stereocenters were afforded through the domino dearomative Heck-Suzuki reaction.
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Affiliation(s)
- Ren-Xiao Liang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou, 310014, China.
| | - Jian-Fei Chen
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou, 310014, China.
| | - Ying-Ying Huang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou, 310014, China.
| | - Ya-Ping Yu
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou, 310014, China.
| | - Han-Yue Zhang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou, 310014, China.
| | - Yu-Feng Song
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou, 310014, China.
| | - Gavin Chit Tsui
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.
| | - Yi-Xia Jia
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou, 310014, China.
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3
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Hu Y, Wang X, Ren N, Li N, Li J, Chen J, Zhang H, Deng H, Cao W, Lin J. A Convenient Synthesis of Fluoroalkylated Benzimidazole‐ or Indole‐fused Benzoxazines. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yijie Hu
- Shanghai University Department of chemistry CHINA
| | - Xiaoli Wang
- Shanghai University Department of chemistry CHINA
| | - Nan Ren
- Shanghai University Department of chemistry CHINA
| | - Na Li
- Shanghai University Qianweichang College CHINA
| | - Jianyang Li
- Shanghai University Qianweichang College CHINA
| | - Jie Chen
- Shanghai University Department of chemistry CHINA
| | - Hui Zhang
- Shanghai University Laboratory for Microstructures and Instrumental Analysis and Research Center CHINA
| | - Hongmei Deng
- Shanghai University Laboratory for Microstructures and instrumental Analysis and Research center CHINA
| | - Weiguo Cao
- Shanghai University Department of chemistry CHINA
| | - Jinhong Lin
- Shanghai Institute of Organic Chemistry Key Laboratory of Organofluorine Chemistry 345 Lingling Road 200032 Shanghai CHINA
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4
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Zhao WW, Shao YC, Wang AN, Huang JL, He CY, Cui BD, Wan NW, Chen YZ, Han WY. Diazotrifluoroethyl Radical: A CF 3-Containing Building Block in [3 + 2] Cycloaddition. Org Lett 2021; 23:9256-9261. [PMID: 34802247 DOI: 10.1021/acs.orglett.1c03603] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We present herein a visible-light-induced [3 + 2] cycloaddition of a hypervalent iodine(III) reagent with α-ketoacids for the construction of 5-CF3-1,3,4-oxadiazoles that are of importance in medicinal chemistry. The reaction proceeds smoothly without a photocatalyst, metal, or additive under mild conditions. Different from the well-established trifluorodiazoethane (CF3CHN2), the diazotrifluoroethyl radical [CF3C(·)N2], a trifluoroethylcarbyne (CF3CĊ:) equivalent and an unusual CF3-containing building block, is involved in the present reaction system.
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Affiliation(s)
- Wen-Wen Zhao
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563006, P. R. China
| | - Yong-Chao Shao
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563006, P. R. China
| | - An-Ni Wang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563006, P. R. China
| | - Jia-Li Huang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563006, P. R. China
| | - Chun-Yang He
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563006, P. R. China.,Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, P. R. China
| | - Bao-Dong Cui
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563006, P. R. China.,Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, P. R. China
| | - Nan-Wei Wan
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563006, P. R. China.,Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, P. R. China
| | - Yong-Zheng Chen
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563006, P. R. China.,Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, P. R. China
| | - Wen-Yong Han
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563006, P. R. China.,Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, P. R. China
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5
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Wang X, Sun X, Li N, Chen J, Zhang H, Deng H, Lin JH, Cao W. The synthesis of perfluoroalkylated indolizines via tandem cyclization/aromatization. J Fluor Chem 2021. [DOI: 10.1016/j.jfluchem.2021.109900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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6
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Li Z, Wang N, Liu J, Mei H, Soloshonok VA, Han J. Synthesis of Isothiazoles through N-Propargylsulfinylamide: TFA-Promoted Sulfinyl Group-Involved Intramolecular Cyclization. Org Lett 2021; 23:6941-6945. [PMID: 34423993 DOI: 10.1021/acs.orglett.1c02538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new reactivity mode of tert-butanesulfinamide has been developed, which proceeds through C-S and O-S bond cleavage of N-propargyl tert-butanesulfinylamide allowing rapid assembly of poly functionalized isothiazoles. This intramolecular cyclization reaction could be conducted under mild and convenient conditions and tolerates several fluoroalkyl and substituted phenyl groups with good chemical yields. This reaction not only represents a new reactivity of tert-butanesulfinamide but also provides an easy strategy for the synthesis of isothiazoles.
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Affiliation(s)
- Ziyi Li
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Nana Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jiang Liu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Haibo Mei
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Vadim A Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 San Sebastián, Spain.,IKERBASQUE, Basque Foundation for Science, María Díaz de Haro 3, Plaza Bizkaia, 48013 Bilbao, Spain
| | - Jianlin Han
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
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7
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Hu Y, Ye L, Chen J, Zhang H, Deng H, Lin J, Cao W. An Efficient Construction of CF
3
‐Substituted Spirooxindole‐Fused Benzo[a]quinolizidines by a Three‐Component Cyclization. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Yijie Hu
- Department of Chemistry Shanghai University Shanghai 200444 P. R. China
| | - Liufeiyang Ye
- Department of Chemistry Shanghai University Shanghai 200444 P. R. China
| | - Jie Chen
- Department of Chemistry Shanghai University Shanghai 200444 P. R. China
| | - Hui Zhang
- Laboratory for Microstructures and Instrumental Analysis and Research Center Shanghai University Shanghai 200444 P. R. China
| | - Hongmei Deng
- Laboratory for Microstructures and Instrumental Analysis and Research Center Shanghai University Shanghai 200444 P. R. China
| | - Jin‐Hong Lin
- Department of Chemistry Shanghai University Shanghai 200444 P. R. China
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 P. R. China
| | - Weiguo Cao
- Department of Chemistry Shanghai University Shanghai 200444 P. R. China
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 P. R. China
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8
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Han J, Wzorek A, Klika KD, Soloshonok VA. Recommended Tests for the Self-Disproportionation of Enantiomers (SDE) to Ensure Accurate Reporting of the Stereochemical Outcome of Enantioselective Reactions. MOLECULES (BASEL, SWITZERLAND) 2021; 26:molecules26092757. [PMID: 34067099 PMCID: PMC8124418 DOI: 10.3390/molecules26092757] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 05/04/2021] [Accepted: 05/04/2021] [Indexed: 12/14/2022]
Abstract
The purpose of this review is to highlight the necessity of conducting tests to gauge the magnitude of the self-disproportionation of enantiomers (SDE) phenomenon to ensure the veracity of reported enantiomeric excess (ee) values for scalemic samples obtained from enantioselective reactions, natural products isolation, etc. The SDE always occurs to some degree whenever any scalemic sample is subjected to physicochemical processes concomitant with the fractionation of the sample, thus leading to erroneous reporting of the true ee of the sample if due care is not taken to either preclude the effects of the SDE by measurement of the ee prior to the application of physicochemical processes, suppressing the SDE, or evaluating all obtained fractions of the sample. Or even avoiding fractionation altogether if possible. There is a clear necessity to conduct tests to assess the magnitude of the SDE for the processes applied to samples and the updated and improved recommendations described herein cover chromatography and processes involving gas-phase transformations such as evaporation or sublimation.
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Affiliation(s)
- Jianlin Han
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China;
| | - Alicja Wzorek
- Institute of Chemistry, Jan Kochanowski University in Kielce, Uniwersytecka 7, 25-406 Kielce, Poland;
| | - Karel D. Klika
- Molecular Structure Analysis, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, D-69120 Heidelberg, Germany
- Correspondence: (K.D.K.); (V.A.S.)
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, Alameda Urquijo 36-5, Plaza Bizkaia, 48011 Bilbao, Spain
- Correspondence: (K.D.K.); (V.A.S.)
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9
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Onyeagusi CI, Malcolmson SJ. Strategies for the Catalytic Enantioselective Synthesis of α-Trifluoromethyl Amines. ACS Catal 2020; 10:12507-12536. [PMID: 34306806 DOI: 10.1021/acscatal.0c03569] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The exploitation of the α-trifluoromethylamino group as an amide surrogate in peptidomimetics and drug candidates has been on the rise. In a large number of these cases, this moiety bears stereochemistry with the stereochemical identity having important consequences on numerous molecular properties, such as the potency of the compound. Yet, the majority of stereoselective syntheses of α-CF3 amines rely on diastereoselective couplings with chiral reagents. Concurrent with the rapid expansion of fluorine into pharmaceuticals has been the development of catalytic enantioselective means of preparing α-trifluoromethyl amines. In this work, we outline the strategies that have been employed for accessing these enantioenriched amines, including normal polarity approaches and several recent developments in imine umpolung transformations.
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Affiliation(s)
- Chibueze I. Onyeagusi
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Steven J. Malcolmson
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
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10
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Llobat A, Sedgwick DM, Cabré A, Román R, Mateu N, Escorihuela J, Medio‐Simón M, Soloshonok V, Han J, Riera A, Fustero S. Asymmetric Synthesis of Fluorinated Monoterpenic Alkaloid Derivatives from Chiral Fluoroalkyl Aldimines via the Pauson‐Khand Reaction. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901504] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Alberto Llobat
- Departamento de Química OrgánicaUniversitat de València 46100 Burjassot, València Spain
| | - Daniel M. Sedgwick
- Departamento de Química OrgánicaUniversitat de València 46100 Burjassot, València Spain
| | - Albert Cabré
- Institute for Research in Biomedicine (IRB Barcelona), BarcelonaInstitute of Science and Technology Baldiri Reixac 10 08028 Barcelona Spain
- Departament de Química Inorgànica i Orgànica, Secció OrgànicaUniversitat de Barcelona Martí i Franquès 1 08028 Barcelona Spain
| | - Raquel Román
- Departamento de Química OrgánicaUniversitat de València 46100 Burjassot, València Spain
| | - Natalia Mateu
- Departamento de Química OrgánicaUniversitat de València 46100 Burjassot, València Spain
| | - Jorge Escorihuela
- Departamento de Química OrgánicaUniversitat de València 46100 Burjassot, València Spain
| | - Mercedes Medio‐Simón
- Departamento de Química OrgánicaUniversitat de València 46100 Burjassot, València Spain
| | - Vadim Soloshonok
- Department of Organic Chemistry I, Faculty of ChemistryUniversity of the Basque Country, UPV/EHU 20018 San Sebastian Spain
- IKERBASQUEBasque Foundation for Science 48011 Bilbao Spain
| | - Jianlin Han
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical EngineeringNanjing Forestry University Nanjing 210037 Jiangsu People's Republic of China
| | - Antoni Riera
- Institute for Research in Biomedicine (IRB Barcelona), BarcelonaInstitute of Science and Technology Baldiri Reixac 10 08028 Barcelona Spain
- Departament de Química Inorgànica i Orgànica, Secció OrgànicaUniversitat de Barcelona Martí i Franquès 1 08028 Barcelona Spain
| | - Santos Fustero
- Departamento de Química OrgánicaUniversitat de València 46100 Burjassot, València Spain
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11
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Onyeagusi CI, Shao X, Malcolmson SJ. Enantio- and Diastereoselective Synthesis of Homoallylic α-Trifluoromethyl Amines by Catalytic Hydroalkylation of Dienes. Org Lett 2020; 22:1681-1685. [PMID: 32013445 PMCID: PMC7079280 DOI: 10.1021/acs.orglett.0c00342] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
We describe a strategy for the enantio- and diastereoselective synthesis of homoallylic α-trifluoromethyl amines by the catalytic hydroalkylation of terminal dienes. Trifluoromethyl-substituted isatin-derived azadienolate nucleophiles undergo γ-selective alkylation with a Pd-DTBM-SEGPHOS catalyst, which additionally promotes regioselective addition to the diene and delivers products in up to 86% yield, 10:1 dr, and 97.5:2.5 er.
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Affiliation(s)
- Chibueze I Onyeagusi
- Department of Chemistry , Duke University , Durham , North Carolina 27708 , United States
| | - Xinxin Shao
- Department of Chemistry , Duke University , Durham , North Carolina 27708 , United States
| | - Steven J Malcolmson
- Department of Chemistry , Duke University , Durham , North Carolina 27708 , United States
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12
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Wu W, Xu S, Zhang Y, Wang X, Li R, Sun F, Yu C, Li T, Wei D, Yao C. NHC-catalyzed β-specific addition of N-based nucleophiles to allenoates. Org Chem Front 2020. [DOI: 10.1039/d0qo00189a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
N-heterocyclic carbene (NHC) catalyzed reactions of nitrogenous heterocycles or trifluoromethylated acylhydrazone with allenoates gave regiospecific β-adducts. DFT calculations rationalized the origination of regio- and E/Z selectivities.
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13
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Wang Y, Deng LF, Zhang X, Niu D. Catalytic Asymmetric Synthesis of α-Tetrasubstituted α-Trifluoromethyl Homoallylic Amines by Ir-Catalyzed Umpolung Allylation of Imines. Org Lett 2019; 21:6951-6956. [PMID: 31418581 DOI: 10.1021/acs.orglett.9b02550] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Yingwei Wang
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering, Sichuan University, Chengdu, 610041, China
| | - Li-Fan Deng
- 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
| | - 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
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14
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Daniel PE, Onyeagusi CI, Ribeiro AA, Li K, Malcolmson SJ. Palladium-Catalyzed Synthesis of α-Trifluoromethyl Benzylic Amines via Fluoroarylation of gem-Difluoro-2-azadienes Enabled by Phosphine-Catalyzed Formation of an Azaallyl-Silver Intermediate. ACS Catal 2019; 9:205-210. [PMID: 31105988 DOI: 10.1021/acscatal.8b03999] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We report the synthesis of α-trifluoromethyl benzylic amines through the vicinal fluoroarylation of gem-difluoro-2-azadienes. Our studies indicate that XPhos plays an important role as a phase transfer catalyst that promotes the addition of AgF to the difluoroazadiene, generating an α-trifluoromethyl azaallyl-silver intermediate that we have characterized by NMR spectroscopy. This intermediate likely transmetallates to Pd, coupling several aryl iodides to deliver products in up to 90% yield. Modification of the azadiene's activating group facilitates challenging cross-couplings.
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Affiliation(s)
- Paige E. Daniel
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Chibueze I. Onyeagusi
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Anthony A. Ribeiro
- Duke University NMR Center and Department of Radiology, Duke University, Durham, North Carolina 27710, United States
| | - Kangnan Li
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Steven J. Malcolmson
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
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15
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Marcantoni E, Palmieri A, Petrini M. Recent synthetic applications of α-amido sulfones as precursors of N-acylimino derivatives. Org Chem Front 2019. [DOI: 10.1039/c9qo00196d] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
α-Amido sulfones can be directly used as N-acylimine or N-acyliminium ion precursors in several synthetic processes aimed at the preparation of nitrogen containing compounds. This review collects the most relevant and practical utilizations of α-amido sulfones appeared in the literature after 2005.
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Affiliation(s)
- Enrico Marcantoni
- School of Science and Technology
- Chemistry Division
- University of Camerino
- 1 I-62032 Camerino
- Italy
| | - Alessandro Palmieri
- School of Science and Technology
- Chemistry Division
- University of Camerino
- 1 I-62032 Camerino
- Italy
| | - Marino Petrini
- School of Science and Technology
- Chemistry Division
- University of Camerino
- 1 I-62032 Camerino
- Italy
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16
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You Y, Lu WY, Xie KX, Zhao JQ, Wang ZH, Yuan WC. Enantioselective synthesis of isoquinoline-1,3(2H,4H)-dione derivatives via a chiral phosphoric acid catalyzed aza-Friedel-Crafts reaction. Chem Commun (Camb) 2019; 55:8478-8481. [PMID: 31268101 DOI: 10.1039/c9cc04057a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A highly enantioselective aza-Friedel-Crafts reaction of structurally new ketimines with indoles and pyrrole is developed by using a chiral phosphoric acid as the catalyst. This protocol enables the first enantioselective synthesis of isoquinoline-1,3(2H,4H)-dione derivatives in good to excellent yields (up to 99% yield) and excellent enantioselectivities (up to >99% ee).
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Affiliation(s)
- Yong You
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
| | - Wen-Ya Lu
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China.
| | - Ke-Xin Xie
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Jian-Qiang Zhao
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
| | - Zhen-Hua Wang
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
| | - Wei-Cheng Yuan
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China. and National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China.
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17
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Mei H, Han J, Fustero S, Román R, Ruzziconi R, Soloshonok VA. Recent progress in the application of fluorinated chiral sulfinimine reagents. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2018.10.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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18
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Trulli L, Raglione V, Fioravanti S. Selective Synthesis of Trifluoromethyl β-Lactams by a Zn-Promoted 2-Bromo Ester Addition on C-CF 3-Substituted Aldimines. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800168] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Laura Trulli
- Dipartimento di Chimica; Università degli Studi di Roma “La Sapienza”; P.le Aldo Moro 5 00185 Roma Italy
| | - Venanzio Raglione
- Dipartimento di Chimica; Università degli Studi di Roma “La Sapienza”; P.le Aldo Moro 5 00185 Roma Italy
| | - Stefania Fioravanti
- Dipartimento di Chimica; Università degli Studi di Roma “La Sapienza”; P.le Aldo Moro 5 00185 Roma Italy
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19
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Trulli L, Sciubba F, Fioravanti S. Chiral trans-carboxylic trifluoromethyl 2-imidazolines by a Ag2O-catalyzed Mannich-type reaction. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.12.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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20
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Sanz-Vidal Á, Torres J, Soloshonok VA, Zhu Y, Han J, Fustero S, del Pozo C. Asymmetric Vinylogous Mannich-Type Addition of α,α-Dicyanoalkenes to α-Fluoroalkyl Sulfinyl Imines. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701284] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Álvaro Sanz-Vidal
- Departamento de Química Orgánica; Universidad de Valencia; 46100 Burjassot Spain
| | - Javier Torres
- Departamento de Química Orgánica; Universidad de Valencia; 46100 Burjassot Spain
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry; University of the Basque Country, UPV/EHU; 20018 San Sebastian Spain
- IKERBASQUE; Basque Foundation for Science; 48011 Bilbao Spain
| | - Yi Zhu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry; Nanjing University; Nanjing 210093 People's Republic of China
| | - Jianlin Han
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry; Nanjing University; Nanjing 210093 People's Republic of China
| | - Santos Fustero
- Departamento de Química Orgánica; Universidad de Valencia; 46100 Burjassot Spain
- Laboratorio de Moléculas Orgánicas; Centro de Investigación Príncipe Felipe; 46012 Valencia Spain
| | - Carlos del Pozo
- Departamento de Química Orgánica; Universidad de Valencia; 46100 Burjassot Spain
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21
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Han J, Soloshonok VA, Klika KD, Drabowicz J, Wzorek A. Chiral sulfoxides: advances in asymmetric synthesis and problems with the accurate determination of the stereochemical outcome. Chem Soc Rev 2017; 47:1307-1350. [PMID: 29271432 DOI: 10.1039/c6cs00703a] [Citation(s) in RCA: 157] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Chiral sulfoxides are in extremely high demand in nearly every sector of the chemical industry concerned with the design and development of new synthetic reagents, drugs, and functional materials. The primary objective of this review is to update readers on the latest developments from the past five years (2011-2016) in the preparation of optically active sulfoxides. Methodologies covered include catalytic asymmetric sulfoxidation using either chemical, enzymatic, or hybrid biocatalytic means; kinetic resolution involving oxidation to sulfones, reduction to sulfides, modification of side chains, and imidation to sulfoximines; as well as various other methods including nucleophilic displacement at the sulfur atom for the desymmetrization of achiral sulfoxides, enantioselective recognition and separation based on either metal-organic frameworks (MOF's) or host-guest chemistry, and the Horner-Wadsworth-Emmons reaction. A second goal of this work concerns a critical discussion of the problem of the accurate determination of the stereochemical outcome of a reaction due to the self-disproportionation of enantiomers (SDE) phenomenon, particularly as it relates to chiral sulfoxides. The SDE is a little-appreciated phenomenon that can readily and spontaneously occur for scalemic samples when subjected to practically any physicochemical process. It has now been unequivocally demonstrated that ignorance in the SDE phenomenon inevitably leads to erroneous interpretation of the stereochemical outcome of catalytic enantioselective reactions, in particular, for the synthesis of chiral sulfoxides. It is hoped that this two-pronged approach to covering the chemistry of chiral sulfoxides will be appealing, engaging, and motivating for current research-active authors to respond to in their future publications in this exciting area of current research.
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Affiliation(s)
- Jianlin Han
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Nanjing University, 210093 Nanjing, China.
| | - Vadim A Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 San Sebastián, Spain. and IKERBASQUE, Basque Foundation for Science, Alameda Urquijo 36-5, Plaza Bizkaia, 48011 Bilbao, Spain
| | - Karel D Klika
- Molecular Structure Analysis, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, D-69009 Heidelberg, Germany.
| | - Józef Drabowicz
- Department of Heterooganic Chemistry, Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łódź, Poland and Institute of Chemistry, Environmental Protection and Biotechnology, Jan Długosz University in Częstochowa, Armii Krajowej 13/15, 42-201 Częstochowa, Poland
| | - Alicja Wzorek
- Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 San Sebastián, Spain. and Institute of Chemistry, Jan Kochanowski University in Kielce, Swiętokrzyska 15G, 25-406 Kielce, Poland.
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22
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Zhang W, Wang X, Zhu B, Zhu D, Han J, Wzorek A, Sato A, Soloshonok VA, Zhou J, Pan Y. Diastereoselective Regiodivergent Mannich Versus Tandem Mannich-Cyclization Reactions. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701066] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wenzhong Zhang
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Jiangsu Key Laboratory of Advanced Organic Materials; Nanjing University; 210093, People's Republic of China
| | - Xin Wang
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Jiangsu Key Laboratory of Advanced Organic Materials; Nanjing University; 210093, People's Republic of China
| | - Biqing Zhu
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Jiangsu Key Laboratory of Advanced Organic Materials; Nanjing University; 210093, People's Republic of China
| | - Di Zhu
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Jiangsu Key Laboratory of Advanced Organic Materials; Nanjing University; 210093, People's Republic of China
| | - Jianlin Han
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Jiangsu Key Laboratory of Advanced Organic Materials; Nanjing University; 210093, People's Republic of China
| | - Alicja Wzorek
- Department of Organic Chemistry I; Faculty of Chemistry; University of the Basque Country UPV/EHU; Paseo Manuel Lardizábal 3 20018 San Sebastián Spain
- Institute of Chemistry; Jan Kochanowski University in Kielce; Świętokrzyska 15G 25-406 Kielce Poland
| | - Azusa Sato
- Department of Organic Chemistry I; Faculty of Chemistry; University of the Basque Country UPV/EHU; Paseo Manuel Lardizábal 3 20018 San Sebastián Spain
- School of Medicine; Tokyo Women's Medical University; 8-1Kawada-cho, Shinjuku-ku 1628666 Tokyo Japan
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I; Faculty of Chemistry; University of the Basque Country UPV/EHU; Paseo Manuel Lardizábal 3 20018 San Sebastián Spain
- IKERBASQUE; Basque Foundation for Science Department Alameda Urquijo 36-5; Plaza Bizkaia 48011 Bilbao Spain
| | - Jie Zhou
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Jiangsu Key Laboratory of Advanced Organic Materials; Nanjing University; 210093, People's Republic of China
| | - Yi Pan
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Jiangsu Key Laboratory of Advanced Organic Materials; Nanjing University; 210093, People's Republic of China
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23
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Kiss L, Fülöp F. Selective Synthesis of Fluorine-Containing Cyclic β-Amino Acid Scaffolds. CHEM REC 2017; 18:266-281. [PMID: 28892275 DOI: 10.1002/tcr.201700038] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Indexed: 01/09/2023]
Abstract
Fluorine-containing organic molecules have generated increasing impact in drug research over the past decade. Their preparation and development of novel synthetic methods towards new types of fluorinated molecules among them of β-amino acid derivatives has received large interest. Our research group have designed various highly selective and stereocontrolled methods for the construction of fluorine-containing cyclic β-amino acid derivatives. The synthetic approaches developed for the synthesis of various pharmacologically interesting cyclic β-amino acid derivatives as monomers with multiple stereogenic centers might be valuable protocols for the access of other classes of organic compounds.
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Affiliation(s)
- Loránd Kiss
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary.,MTA-SZTE Stereochemistry Research Group, Hungarian Academy of Sciences, H-6720, Szeged, Eötvös u. 6, Hungary
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24
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Pelagalli A, Pellacani L, Fioravanti S. In Pursuit of β-Amino-α-nitro-β-(trifluoromethyl) Ketones: Nitro-Mannich versus Mannich-Type Reactions. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700510] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Alessia Pelagalli
- Dipartimento di Chimica; Università degli Studi di Roma “La Sapienza”; P.le Aldo Moro 5 00185 Roma Italy
| | - Lucio Pellacani
- Dipartimento di Chimica; Università degli Studi di Roma “La Sapienza”; P.le Aldo Moro 5 00185 Roma Italy
| | - Stefania Fioravanti
- Dipartimento di Chimica; Università degli Studi di Roma “La Sapienza”; P.le Aldo Moro 5 00185 Roma Italy
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25
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Mazzeo G, Longhi G, Abbate S, Palomba M, Bagnoli L, Marini F, Santi C, Han J, Soloshonok VA, Di Crescenzo E, Ruzziconi R. Solvent-free, uncatalyzed asymmetric “ene” reactions of N-tert-butylsulfinyl-3,3,3-trifluoroacetaldimines: a general approach to enantiomerically pure α-(trifluoromethyl)tryptamines. Org Biomol Chem 2017; 15:3930-3937. [PMID: 28436530 DOI: 10.1039/c7ob00670e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A novel approach to stereoselectively α-trifluoromethylated tryptamines is reported.
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Affiliation(s)
- Giuseppe Mazzeo
- Department of Molecular and Translational Medicine
- Università di Brescia
- 25123 Brescia
- Italy
| | - Giovanna Longhi
- Department of Molecular and Translational Medicine
- Università di Brescia
- 25123 Brescia
- Italy
| | - Sergio Abbate
- Department of Molecular and Translational Medicine
- Università di Brescia
- 25123 Brescia
- Italy
| | - Martina Palomba
- Department of Pharmaceutical Sciences
- University of Perugia Via del Liceo 1
- 06123 Perugia
- Italy
| | - Luana Bagnoli
- Department of Pharmaceutical Sciences
- University of Perugia Via del Liceo 1
- 06123 Perugia
- Italy
| | - Francesca Marini
- Department of Pharmaceutical Sciences
- University of Perugia Via del Liceo 1
- 06123 Perugia
- Italy
| | - Claudio Santi
- Department of Pharmaceutical Sciences
- University of Perugia Via del Liceo 1
- 06123 Perugia
- Italy
| | - Jianlin Han
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing
- P. R. China
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I
- Faculty of Chemistry
- University of the Basque Country UPV/EHU
- 20018 San Sebastián
- Spain
| | | | - Renzo Ruzziconi
- Department of Chemistry
- Biology and Biotechnologies
- 06123 Perugia
- Italy
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26
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Chen N, Dai XJ, Wang H, Li CJ. Umpolung Addition of Aldehydes to Aryl Imines. Angew Chem Int Ed Engl 2016; 56:6260-6263. [PMID: 28026143 DOI: 10.1002/anie.201610578] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Indexed: 01/19/2023]
Abstract
One of the classical ways to synthesize amines involves the coupling of carbonyl compounds and imines, either through enolate chemistry or acyl-based carbanion equivalents. We herein report an alternative strategy that is based on the use of aldehydes as alkyl carbanion equivalents in a reductive coupling with aryl imines. A wide array of secondary amines can be synthesized in moderate to high yields. This reaction is mediated by hydrazine and catalyzed by ruthenium(II) complexes, and it tolerates various functional groups, such as esters, amides, and nitriles.
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Affiliation(s)
- Ning Chen
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec, H3A 0B8, Canada.,Department of Organic Chemistry, Faculty of Science, Beijing University of Chemical Technology, Beijing, China
| | - Xi-Jie Dai
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec, H3A 0B8, Canada
| | - Haining Wang
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec, H3A 0B8, Canada
| | - Chao-Jun Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec, H3A 0B8, Canada
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27
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Affiliation(s)
- Ning Chen
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis; McGill University; 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada
- Department of Organic Chemistry, Faculty of Science; Beijing University of Chemical Technology; Beijing China
| | - Xi-Jie Dai
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis; McGill University; 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada
| | - Haining Wang
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis; McGill University; 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada
| | - Chao-Jun Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis; McGill University; 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada
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28
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Xie C, Zhang L, Mei H, Han J, Soloshonok VA, Pan Y. Development and Evaluation of Different Methods for Preparation of Fluorine-Containing (R)- and (S)-N-tert-Butanesulfinyl-aldimines. ChemistrySelect 2016. [DOI: 10.1002/slct.201601197] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chen Xie
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry; Nanjing University; Nanjing 210093 P. R. China
| | - Lijun Zhang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry; Nanjing University; Nanjing 210093 P. R. China
| | - Haibo Mei
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry; Nanjing University; Nanjing 210093 P. R. China
| | - Jianlin Han
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry; Nanjing University; Nanjing 210093 P. R. China
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry; University of the Basque Country UPV/EHU; Paseo Manuel Lardizábal 3 20018 San Sebastián Spain
- IKERBASQUE; Basque Foundation for Science; Alameda Urquijo 36-5, Plaza Bizkaia 48011 Bilbao Spain
| | - Yi Pan
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry; Nanjing University; Nanjing 210093 P. R. China
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29
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Fioravanti S, Mancinelli F, Parise L, Pelagalli A, Pellacani L, Trulli L. β,β-Dialkyl γ-amino γ-trifluoromethyl alcohols from trifluoromethyl (E)-aldimines by a one-pot solvent-free Mannich-type reaction and subsequent reduction. RSC Adv 2016. [DOI: 10.1039/c6ra22507a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A diastereoselective one-pot solvent-free Mannich-type addition of α-alkyl aldehydes to trifluoromethyl (E)-aldimines, which first act as bases and then as electrophiles, leads to β,β-dialkyl γ-amino γ-CF3 alcohols in good yields, after reduction.
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Affiliation(s)
- Stefania Fioravanti
- Dipartimento di Chimica
- Università degli Studi di Roma “La Sapienza”
- I-00185 Roma
- Italy
| | - Federico Mancinelli
- Dipartimento di Chimica
- Università degli Studi di Roma “La Sapienza”
- I-00185 Roma
- Italy
| | - Luca Parise
- Dipartimento di Chimica
- Università degli Studi di Roma “La Sapienza”
- I-00185 Roma
- Italy
| | - Alessia Pelagalli
- Dipartimento di Chimica
- Università degli Studi di Roma “La Sapienza”
- I-00185 Roma
- Italy
| | - Lucio Pellacani
- Dipartimento di Chimica
- Università degli Studi di Roma “La Sapienza”
- I-00185 Roma
- Italy
| | - Laura Trulli
- Dipartimento di Chimica
- Università degli Studi di Roma “La Sapienza”
- I-00185 Roma
- Italy
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