51
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Vicinal difunctionalization of carbon-carbon double bond for the platform synthesis of trifluoroalkyl amines. Nat Commun 2020; 11:5924. [PMID: 33230122 PMCID: PMC7683743 DOI: 10.1038/s41467-020-19748-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 10/27/2020] [Indexed: 02/06/2023] Open
Abstract
Regioselective vicinal diamination of carbon-carbon double bonds with two different amines is a synthetic challenge under transition metal-free conditions, especially for the synthesis of trifluoromethylated amines. However, the synthesis of ethylene diamines and fluorinated amine compounds is demanded, especially in the pharmaceutical sector. Herein, we demonstrate that the controllable double nucleophilic functionalization of an activated alkene synthon, originated from a trifluoropropenyliodonium salt with two distinct nucleophiles, enables the selective synthesis of trifluoromethylated ethylene amines and diamines on broad scale with high efficiency under mild reaction conditions. Considering the chemical nature of the reactants, our synthetic approach brings forth an efficient methodology and provides versatile access to highly fluorinated amines.
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52
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Wang XY, Zhang QB, Jin XL, Wu LZ, Liu Q. Preparation of Oxazole Acetals from
N
‐Propargylamides Enabled by Visible‐Light‐Promoted Selenium‐π‐Acid Catalysis. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.202000239] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Xue Yang Wang
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Qing Bao Zhang
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Xiao Ling Jin
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Li Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry The Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Qiang Liu
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 P. R. China
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53
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54
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Chen C, Cao Z, Zhang X, Li Y, Yu L, Jiang X. Synergistic Catalysis of Se and Cu for the Activation of
α
‐H
of Methyl Ketones with Molecular Oxygen/Alcohol to Produce
α
‐Keto
Acetals
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000089] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Chao Chen
- School of Chemistry and Chemical Engineering, Yangzhou University Yangzhou Jiangsu 225002 China
| | - Zhicheng Cao
- School of Chemistry and Chemical Engineering, Yangzhou University Yangzhou Jiangsu 225002 China
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, Department of Chemistry, East China Normal University Shanghai 200062 China
| | - Xu Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University Yangzhou Jiangsu 225002 China
| | - Yiming Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, Department of Chemistry, East China Normal University Shanghai 200062 China
| | - Lei Yu
- School of Chemistry and Chemical Engineering, Yangzhou University Yangzhou Jiangsu 225002 China
| | - Xuefeng Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, Department of Chemistry, East China Normal University Shanghai 200062 China
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55
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Zhou M, Li K, Chen D, Xu R, Xu G, Tang W. Enantioselective Reductive Coupling of Imines Templated by Chiral Diboron. J Am Chem Soc 2020; 142:10337-10342. [PMID: 32459089 DOI: 10.1021/jacs.0c04558] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We herein report a general, practical, and highly efficient method for asymmetric synthesis of a wide range of chiral vicinal diamines via reductive coupling of imines templated by chiral diboron. The protocol features high enantioselectivity and stereospecificity, mild reaction conditions, simple operating procedures, use of readily available starting materials, and a broad substrate scope. The method signifies the generality of diboron-enabled [3,3]-sigmatropic rearrangement.
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Affiliation(s)
- Mingkang Zhou
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Kaidi Li
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Dongping Chen
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Ronghua Xu
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Guangqing Xu
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China.,NingBo Zejun Pharmaceutical Technology Co., Ltd, Hangzhou Bay New District, Ningbo 315336, China
| | - Wenjun Tang
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China.,School of Chemistry and Material Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China.,NingBo Zejun Pharmaceutical Technology Co., Ltd, Hangzhou Bay New District, Ningbo 315336, China
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56
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Toledano-Pinedo M, Martínez del Campo T, Tiemblo M, Fernández I, Almendros P. Organoseleno-Catalyzed Synthesis of α,β-Unsaturated α′-Alkoxy Ketones from Allenes Enabled by Se···O Interactions. Org Lett 2020; 22:3979-3984. [DOI: 10.1021/acs.orglett.0c01288] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Mireia Toledano-Pinedo
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Quı́mica Orgánica, Unidad Asociada al CSIC, Facultad de Quı́mica, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Teresa Martínez del Campo
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Quı́mica Orgánica, Unidad Asociada al CSIC, Facultad de Quı́mica, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Marta Tiemblo
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Quı́mica Orgánica, Unidad Asociada al CSIC, Facultad de Quı́mica, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Israel Fernández
- Departamento de Quı́mica Orgánica and Centro de Innovación en Quı́mica Avanzada (ORFEO−CINQA), Facultad de Quı́mica, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Pedro Almendros
- Instituto de Quı́mica Orgánica General, IQOG, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
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57
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El Sayed MT, Sarhan AE, Ahmed E, Khattab RR, Elnaggar M, El‐Messery SM, Shaldam MA, Hassan GS. Novel Pyruvate Kinase (PK) Inhibitors: New Target to Overcome Bacterial Resistance. ChemistrySelect 2020. [DOI: 10.1002/slct.202000043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Mardia T. El Sayed
- Applied Organic Chemistry Department, Chemical Industries Research DivisionNational Research Centre Dokki 12311 Egypt
| | - Alaadin E. Sarhan
- Therapeutical Chemistry DepartmentPharmaceutical Division, National Research Centre Dokki 12311 Egypt
| | - Entsar Ahmed
- Chemistry Department, Faculty of ScienceAl-Azhar University (Girls Branch) Cairo Egypt
| | - Reham R. Khattab
- Photochemistry DepartmentChemical Industries Research Division, National Research Centre Dokki 12311 Egypt
| | - Mohamed Elnaggar
- Chemistry Department, Faculty of SciencesUniversity of Sharjah Sharjah 27272 UAE
| | - Shahenda M. El‐Messery
- Department of Pharmaceutical Organic ChemistryFaculty of Pharmacy, Mansoura University P.O.Box 35516 Mansoura Egypt
| | - Moataz A. Shaldam
- Department of Pharmaceutical Chemistry, Faculty of PharmacyKafrelsheikh University Kafr El Sheikh 33516 Egypt
| | - Ghada S. Hassan
- Department of Medicinal Chemistry, Faculty of PharmacyMansoura University 35516 Mansoura Egypt
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58
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Zhu LL, Tian L, Cai B, Liu G, Zhang H, Wang Y. Diamine-mediated N 2-selective β-selenoalkylation of triazoles with alkenes. Chem Commun (Camb) 2020; 56:2979-2982. [PMID: 32077882 DOI: 10.1039/d0cc00601g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A N2-selective β-selenoalkylation of 1,2,3-triazoles with alkenes mediated by diamines has been developed. The reaction proceeds presumably via the interaction of diamines with both the triazole moiety and selenium/alkene complex to construct a U-shaped reaction intermediate. This activation mode will block the N1 position on triazoles and thus favor the N2-selective selenoamination. This stereospecific anti-addition method enables an efficient N2-selective β-selenoalkylation of 1,2,3-triazoles under mild and open-air conditions and might find applications in the synthesis of biologically active molecules.
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Affiliation(s)
- Li-Li Zhu
- School of Chemistry and Chemical Engineering, Zhoukou Normal University, Wenchang Road, Zhoukou, 466001, China.
| | - Lifang Tian
- Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, China.
| | - Bin Cai
- School of Chemistry and Chemical Engineering, Zhoukou Normal University, Wenchang Road, Zhoukou, 466001, China.
| | - Guanglu Liu
- School of Chemistry and Chemical Engineering, Zhoukou Normal University, Wenchang Road, Zhoukou, 466001, China.
| | - Hui Zhang
- School of Chemistry and Chemical Engineering, Zhoukou Normal University, Wenchang Road, Zhoukou, 466001, China.
| | - Yahui Wang
- Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, China.
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59
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Wang D, Yu H, Sun S, Zhong F. Intermolecular Vicinal Diaminative Assembly of Tetrahydroquinoxalines via Metal-free Oxidative [4 + 2] Cycloaddition Strategy. Org Lett 2020; 22:2425-2430. [DOI: 10.1021/acs.orglett.0c00624] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Dangui Wang
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Huaibin Yu
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Shaohan Sun
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Fangrui Zhong
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
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60
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Wang J, Zheng G, Li X. Rhodium( iii)-catalyzed diamidation of olefins via amidorhodation and further amidation. Chem Commun (Camb) 2020; 56:7809-7812. [DOI: 10.1039/d0cc00952k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Rh(iii)/Co(iii)-catalyzed diamidation of amide-tethered olefins has been realized using dioxazolones and arylsulfonamides as different classes of amidating reagents.
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Affiliation(s)
- Jinlei Wang
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710062
- China
| | - Guangfan Zheng
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710062
- China
| | - Xingwei Li
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710062
- China
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61
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Tabor JR, Obenschain DC, Michael FE. Selenophosphoramide-catalyzed diamination and oxyamination of alkenes. Chem Sci 2019; 11:1677-1682. [PMID: 32206288 PMCID: PMC7069249 DOI: 10.1039/c9sc05335b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 12/22/2019] [Indexed: 12/13/2022] Open
Abstract
Scavenging fluoride from a selenophosphoramide-catalyzed alkene oxidation reaction suppresses the known syn-elimination pathway, enabling alkene diamination/oxyamination reactions via substitution.
A new selenophosphoramide-catalyzed diamination of terminal- and trans-1,2-disubstituted olefins is presented. Key to the success of this transformation was the introduction of a fluoride scavenger, trimethylsilyl trifluoromethanesulfonate (TMSOTf), to prevent a competitive syn-elimination pathway, as was the use of a phosphoramide ligand on selenium to promote the desired substitution reaction. A screen of catalysts revealed that more electron-rich phosphine ligands resulted in higher yields of the desired product, with selenophosphoramides giving the optimal results. A broad range of substrates and functional groups were tolerated and yields were generally good to excellent. For (E)-1,2-disubstituted olefins, diastereoselectivities were always high, giving exclusively anti products. The conditions were also applied to substrates bearing internal nucleophiles such as esters and carbonates, giving rise to 1,2-aminoesters and cyclic carbonates, respectively.
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Affiliation(s)
- John R Tabor
- University of Washington , Department of Chemistry , Box 351700, Seattle , Washington 98195-1700 , USA .
| | - Derek C Obenschain
- University of Washington , Department of Chemistry , Box 351700, Seattle , Washington 98195-1700 , USA .
| | - Forrest E Michael
- University of Washington , Department of Chemistry , Box 351700, Seattle , Washington 98195-1700 , USA .
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