1
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Verma S, Singh V, Jat JL, Tiwari B. Amidation of Enones via Beckmann Rearrangement. J Org Chem 2024. [PMID: 38800985 DOI: 10.1021/acs.joc.3c02478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
The Beckmann reaction is one of the most atom-economical methods for the preparation of amides from ketones. Unlike ketones, the multiple competing reactivities of enones as well as the requirement of demanding reaction conditions for in situ generation of oximes have severely impacted the application of this reaction for the preparation of α,β-unsaturated amides. Herein, we describe the first chemoselective method for the direct conversion of enones to the corresponding α,β-unsaturated amides using N-Boc-O-tosylhydroxylamine.
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Affiliation(s)
- Saumya Verma
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University (A Central University) Vidya Vihar, Raebareli Road, Lucknow 226025, Uttar Pradesh, India
| | - Vikram Singh
- Department of Biological and Synthetic Chemistry, Centre of Biomedical Research, SGPGIMS-Campus, Raebareli Road, Lucknow 226014, India
| | - Jawahar L Jat
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University (A Central University) Vidya Vihar, Raebareli Road, Lucknow 226025, Uttar Pradesh, India
| | - Bhoopendra Tiwari
- Department of Biological and Synthetic Chemistry, Centre of Biomedical Research, SGPGIMS-Campus, Raebareli Road, Lucknow 226014, India
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2
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Chen J, Zhang M, Yuan C, Zhang T, Wu Z, Li T, Chi YR. Design, Synthesis, and Antifungal Activity of Acrylamide Derivatives Containing Trifluoromethylpyridine and Piperazine. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:11360-11368. [PMID: 38720533 DOI: 10.1021/acs.jafc.3c09770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2024]
Abstract
In this study, a series of acrylamide derivatives containing trifluoromethylpyridine or piperazine fragments were rationally designed and synthesized. Subsequently, the in vitro antifungal activities of all of the synthesized compounds were evaluated. The findings revealed that compounds 6b, 6c, and 7e exhibited >80% antifungal activity against Phomopsis sp. (Ps) at the concentration of 50 μg/mL. Furthermore, the EC50 values for compounds 6b, 6c, and 7e against Ps were determined to be 4.49, 6.47, and 8.68 μg/mL, respectively, which were better than the positive control with azoxystrobin (24.83 μg/mL). At the concentration of 200 μg/mL, the protective activity of compound 6b against Ps reached 65%, which was comparable to that of azoxystrobin (60.9%). Comprehensive mechanistic studies, including morphological studies with fluorescence microscopy (FM), cytoplasmic leakage, and enzyme activity assays, indicated that compound 6b disrupts cell membrane integrity and induces the accumulation of defense enzyme activity, thereby inhibiting mycelial growth. Therefore, compound 6b serves as a valuable candidate for the development of novel fungicides for plant protection.
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Affiliation(s)
- Jinli Chen
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, Guizhou 550025, People's Republic of China
| | - Meng Zhang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, Guizhou 550025, People's Republic of China
| | - Chunmei Yuan
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, Guizhou 550025, People's Republic of China
| | - Tao Zhang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, Guizhou 550025, People's Republic of China
| | - Zhibing Wu
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, Guizhou 550025, People's Republic of China
| | - Tingting Li
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, Guizhou 550025, People's Republic of China
| | - Yonggui Robin Chi
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, Guizhou 550025, People's Republic of China
- School of Chemistry, Chemical Engineering, and Biotechnology, Nanyang Technological University, Singapore 637371, Singapore
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3
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Debnath I, Roy T, Borah D, Mahata K. Stable peri-Naphthoisatogens without C2 Protection: Synthesis via Aldrone Condensation, Optical Properties and 1,3-Dipolar Cycloaddition Reaction. Chem Asian J 2023:e202300827. [PMID: 37929899 DOI: 10.1002/asia.202300827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/02/2023] [Accepted: 11/05/2023] [Indexed: 11/07/2023]
Abstract
peri-Annulation of naphthalane, an important tool for realization of wide range of functional materials, is presently accomplished with limited few functional groups like imide, amide and diamine-derivative (perimidine). To increase the diversity, we have incorporated α-keto aldonitrone as a new functional group, and herein report about five peri-naphthoisatogens (PNTIs) dyes. The synthesis were accomplished using an unusual reaction of aromatic nitro group, which is nucleophilic attack of a C-nucleophile (enol) to the N-atom of nitro group. In five different 5-alkylamino-8-nitro-1-acetylnaphthalenes, intramolecular acid-catalyzed nucleophilic attack of enol moiety to the N-atom of nitro group produced α-keto aldonitrone via addition-elimination mechanism. The PNTIs showed characteristics of 1,3-dipole and reacted with ethyl acrylate to produce isoxazolidine ring, which subsequently converted into aza phenalenone derivative via ring cleavage. Both the PNTI and the corresponding derivative strongly absorb in the visible region, displaying absorption maximum at 551 and 561 nm (in CHCl3 ) respectively. Compared to the popular analogous dye naphthalene monoimides, PNTIs showed bathochromic shift of absorption maximum by more than 100 nm. The emission maximum for the PNTI and its derivative in chloroform were observed at 594 and 635 nm respectively.
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Affiliation(s)
- Indraneel Debnath
- Department of Chemistry, Indian Institute of Technology, Guwahati, Guwahati, Assam, 781039, India
| | - Tirupati Roy
- Department of Chemistry, Indian Institute of Technology, Guwahati, Guwahati, Assam, 781039, India
| | - Dharismita Borah
- Department of Chemistry, Indian Institute of Technology, Guwahati, Guwahati, Assam, 781039, India
| | - Kingsuk Mahata
- Department of Chemistry, Indian Institute of Technology, Guwahati, Guwahati, Assam, 781039, India
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4
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Zhang MZ, Wang P, Liu HY, Wang D, Deng Y, Bai YH, Luo F, Wu WY, Chen T. Metal-Catalyst-Free One-Pot Aqueous Synthesis of trans-1,2-Diols from Electron-Deficient α,β-Unsaturated Amides via Epoxidation Using Oxone as a Dual Role Reagent. CHEMSUSCHEM 2023; 16:e202300583. [PMID: 37311715 DOI: 10.1002/cssc.202300583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/05/2023] [Accepted: 06/13/2023] [Indexed: 06/15/2023]
Abstract
In organic synthesis, incorporating two functional groups into the carbon-carbon double bond of α,β-unsaturated amides is challenging due to the electron-deficient nature of the olefin moiety. Although a few examples of dihydroxylation of α,β-unsaturated amides have been demonstrated, producing cis-1,2-diols using either highly toxic OsO4 or other specialized metal reagents in organic solvents, they are limited to several specific amides. We describe herein a general and one-pot direct synthesis of trans-1,2-diols from electron-deficient α,β-unsaturated amides through dihydroxylation using oxone as a dual-role reagent in water. This reaction does not require any metal catalyst and produces non-hazardous and nontoxic K2 SO4 as the sole byproduct. Moreover, epoxidation products could also be selectively formed by adjusting the reaction conditions. By the strategy, the intermediates of Mcl-1 inhibitor and antiallergic bioactive molecule can be synthesized in one pot. The gram-scale synthesis of trans-1,2-diol which is isolated and purified by recrystallization further shows the potential applications of this new reaction in organic synthesis.
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Affiliation(s)
- Ming-Zhong Zhang
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Ping Wang
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Hai-Yan Liu
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Dailian Wang
- College of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan, 756000, China
| | - Ya Deng
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Yu-Heng Bai
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Fei Luo
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Wen-Yu Wu
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Tieqiao Chen
- College of Chemical Engineering and Technology, Hainan University, Haikou, 410082, China
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5
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Janardan Pawar T, Bonilla‐Landa I, Reyes‐Luna A, Barrera‐Méndez. F, Javier Enríquez‐Medrano F, Enrique Díaz‐de‐León‐Gómez R, Luis Olivares‐Romero J. Chiral Hydroxamic Acid Ligands in Asymmetric Synthesis: The Evolution of Metal‐Catalyzed Oxidation Reactions. ChemistrySelect 2023. [DOI: 10.1002/slct.202300555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Affiliation(s)
- Tushar Janardan Pawar
- Red de Estudios Moleculares Avanzados Clúster Científico y Tecnológico BioMimic Campus III. Instituto de Ecología, A. C. Carretera Antigua a Coatepec 351 91073 Xalapa Veracruz México
| | - Israel Bonilla‐Landa
- Red de Estudios Moleculares Avanzados Clúster Científico y Tecnológico BioMimic Campus III. Instituto de Ecología, A. C. Carretera Antigua a Coatepec 351 91073 Xalapa Veracruz México
| | - Alfonso Reyes‐Luna
- Red de Estudios Moleculares Avanzados Clúster Científico y Tecnológico BioMimic Campus III. Instituto de Ecología, A. C. Carretera Antigua a Coatepec 351 91073 Xalapa Veracruz México
| | - Felipe Barrera‐Méndez.
- Red de Estudios Moleculares Avanzados Clúster Científico y Tecnológico BioMimic Campus III. Instituto de Ecología, A. C. Carretera Antigua a Coatepec 351 91073 Xalapa Veracruz México
- Catedrático CONACyT en el Instituto de Ecología, A.C. Carretera Antigua a Coatepec 351 91073 Xalapa Veracruz México
| | | | - Ramón Enrique Díaz‐de‐León‐Gómez
- Research Center in Applied Chemistry (CIQA) Enrique Reyna Hermosillo, No. 140. Col. San José de los Cerritos Saltillo, 25294 México
| | - José Luis Olivares‐Romero
- Red de Estudios Moleculares Avanzados Clúster Científico y Tecnológico BioMimic Campus III. Instituto de Ecología, A. C. Carretera Antigua a Coatepec 351 91073 Xalapa Veracruz México
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6
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Bitai J, Nimmo AJ, Slawin AMZ, Smith AD. Cooperative Palladium/Isothiourea Catalyzed Enantioselective Formal (3+2) Cycloaddition of Vinylcyclopropanes and α,β-Unsaturated Esters. Angew Chem Int Ed Engl 2022; 61:e202202621. [PMID: 35389553 PMCID: PMC9324207 DOI: 10.1002/anie.202202621] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Indexed: 12/15/2022]
Abstract
A protocol for the enantioselective synthesis of substituted vinylcyclopentanes has been realised using cooperative palladium and isothiourea catalysis. Treatment of vinylcyclopropanes with Pd(PPh3 )4 generates a zwitterionic π-allyl palladium intermediate that intercepts a catalytically generated α,β-unsaturated acyl ammonium species prepared from the corresponding α,β-unsaturated para-nitrophenyl ester and the isothiourea (R)-BTM. Intermolecular formal (3+2) cycloaddition between these reactive intermediates generates functionalised cyclopentanes in generally good yields and excellent diastereo- and enantiocontrol (up to >95 : 5 dr, 97 : 3 er), with the use of LiCl as an additive proving essential for optimal stereocontrol. To the best of our knowledge a dual transition metal/organocatalytic process involving α,β-unsaturated acyl ammonium intermediates has not been demonstrated previously.
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Affiliation(s)
- Jacqueline Bitai
- EaStCHEM, School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
| | - Alastair J Nimmo
- EaStCHEM, School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
| | - Alexandra M Z Slawin
- EaStCHEM, School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
| | - Andrew D Smith
- EaStCHEM, School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
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7
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K. Pagire S, Kumagai N, Shibasaki M. Highly Enantio- and Diastereoselective Synthesis of 1,2,3-Trisubstituted Cyclopropanes from α,β-Unsaturated Amides and Stabilized Sulfur Ylides Catalyzed by a Chiral Copper(I) Complex. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02723] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Santosh K. Pagire
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
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8
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Pandia BK, Gunanathan C. Manganese(I) Catalyzed α-Alkenylation of Amides Using Alcohols with Liberation of Hydrogen and Water. J Org Chem 2021; 86:9994-10005. [PMID: 34254806 DOI: 10.1021/acs.joc.1c00685] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Herein, unprecedented manganese-catalyzed direct α-alkenylation of amides using alcohols is reported. Aryl amides are reacted with diverse primary alcohols, which provided the α,β-unsaturated amides in moderate to good yields with excellent selectivity. Mechanistic studies indicate that Mn(I) catalyst oxidizes the alcohols to their corresponding aldehydes and also plays an important role in efficient C═C bond formation through aldol condensation. This selective olefination is facilitated by metal-ligand cooperation by the aromatization-dearomatization process operating in the catalytic system. Biorenewable alcohols are used as alkenylation reagents for the challenging α-alkenylation of amides with the highly abundant base metal manganese as a catalyst, which results in water and dihydrogen as the only byproduct, making this catalytic transformation attractive, sustainable, and environmentally benign.
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Affiliation(s)
- Biplab Keshari Pandia
- School of Chemical Sciences, National Institute of Science Education and Research, Homi Bhabha National Institute, Bhubaneswar-752050, India
| | - Chidambaram Gunanathan
- School of Chemical Sciences, National Institute of Science Education and Research, Homi Bhabha National Institute, Bhubaneswar-752050, India
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9
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Li Z, Kumagai N, Shibasaki M. Catalytic Asymmetric 1,3-Dipolar Cycloaddition of α,β-Unsaturated Amide and Azomethine Imine. Chem Pharm Bull (Tokyo) 2021; 68:552-554. [PMID: 32475860 DOI: 10.1248/cpb.c20-00130] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
α,β-Unsaturated amides were incorporated as viable dipolarophiles in a catalytic asymmetric 1,3-dipolar cycloaddition of azomethine imines. The use of a 7-azaindoline auxiliary was essential to acquire sufficient reactivity with excellent diastereoselectivity, likely due to the chelating activation of the amide by the In(III)/bishydroxamic acid complex. Although the enantioselectivity remains unsatisfactory, this work is an important step toward the development of an asymmetric catalysis utilizing stable and low-reactive substrates.
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Affiliation(s)
- Zhao Li
- Institute of Microbial Chemistry
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10
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Abstract
AbstractThis review updates the field of enantioselective indium-catalyzed transformations of all types since 2012. It shows that asymmetric indium catalysis, that suits the growing demand for greener processes, offers a real opportunity to replace toxic metals in the near future.1 Introduction2 Allylations, Propargylations, and Allenylations of Carbonyl Compounds and Derivatives2.1 Allylations2.2 Propargylations and Allenylations3 Cycloadditions3.1 Hetero-Diels–Alder Cycloadditions3.2 1,3-Dipolar Cycloadditions4 Miscellaneous Reactions5 Domino and Tandem Reactions6 Conclusion
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11
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Zhang YP, You Y, Zhao JQ, Zhang XM, Xu XY, Yuan WC. Chiral Bifunctional Amine-Squaramide-Catalyzed Highly Diastereo- and Enantioselective Michael/Aldol Cascade Reaction of 2-Mercaptobenzaldehyde and α,β-Unsaturated 7-Azaindoline Amides. J Org Chem 2019; 84:7984-7994. [DOI: 10.1021/acs.joc.9b00837] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yan-Ping Zhang
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong You
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Jian-Qiang Zhao
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Xiao-Mei Zhang
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Xiao-Ying Xu
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Wei-Cheng Yuan
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
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12
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Zhang YP, You Y, Zhao JQ, Zhou XJ, Zhang XM, Xu XY, Yuan WC. A AgOAc/quinine-derived aminophosphine complex as an efficient catalyst for diastereo- and enantioselective 1,3-dipolar cycloaddition of α,β-unsaturated 7-azaindoline amides and azomethine ylides. Org Chem Front 2019. [DOI: 10.1039/c9qo00347a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The Dixon’s catalyst system is effective for the asymmetric 1,3-dipolar cycloaddition.
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Affiliation(s)
- Yan-Ping Zhang
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
| | - Yong You
- Institute for Advanced Study
- Chengdu University
- Chengdu 610106
- China
| | - Jian-Qiang Zhao
- Institute for Advanced Study
- Chengdu University
- Chengdu 610106
- China
| | - Xiao-Jian Zhou
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
| | - Xiao-Mei Zhang
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
| | - Xiao-Ying Xu
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
| | - Wei-Cheng Yuan
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
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13
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Ronson TO, Renders E, Van Steijvoort BF, Wang X, Wybon CCD, Prokopcová H, Meerpoel L, Maes BUW. Ruthenium‐Catalyzed Reductive Arylation of N‐(2‐Pyridinyl)amides with Isopropanol and Arylboronate Esters. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Thomas O. Ronson
- Organic SynthesisDepartment of ChemistryUniversity of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Evelien Renders
- Organic SynthesisDepartment of ChemistryUniversity of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Ben F. Van Steijvoort
- Organic SynthesisDepartment of ChemistryUniversity of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Xubin Wang
- Organic SynthesisDepartment of ChemistryUniversity of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Clarence C. D. Wybon
- Organic SynthesisDepartment of ChemistryUniversity of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Hana Prokopcová
- Janssen Research & Development, Janssen Pharmaceutica NV Turnhoutseweg 30 2340 Beerse Belgium
| | - Lieven Meerpoel
- Janssen Research & Development, Janssen Pharmaceutica NV Turnhoutseweg 30 2340 Beerse Belgium
| | - Bert U. W. Maes
- Organic SynthesisDepartment of ChemistryUniversity of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
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14
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Ronson TO, Renders E, Van Steijvoort BF, Wang X, Wybon CCD, Prokopcová H, Meerpoel L, Maes BUW. Ruthenium-Catalyzed Reductive Arylation of N-(2-Pyridinyl)amides with Isopropanol and Arylboronate Esters. Angew Chem Int Ed Engl 2018; 58:482-487. [PMID: 30380163 DOI: 10.1002/anie.201810947] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Indexed: 11/11/2022]
Abstract
A new three-component reductive arylation of amides with stable reactants (iPrOH and arylboronate esters), making use of a 2-pyridinyl (Py) directing group, is described. The N-Py-amide substrates are readily prepared from carboxylic acids and PyNH2 , and the resulting N-Py-1-arylalkanamine reaction products are easily transformed into the corresponding chlorides by substitution of the HN-Py group with HCl. The 1-aryl-1-chloroalkane products allow substitution and cross-coupling reactions. Therefore, a general protocol for the transformation of carboxylic acids into a variety of functionalities is obtained. The Py-NH2 by-product can be recycled.
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Affiliation(s)
- Thomas O Ronson
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Evelien Renders
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Ben F Van Steijvoort
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Xubin Wang
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Clarence C D Wybon
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Hana Prokopcová
- Janssen Research & Development, Janssen Pharmaceutica NV, Turnhoutseweg 30, 2340, Beerse, Belgium
| | - Lieven Meerpoel
- Janssen Research & Development, Janssen Pharmaceutica NV, Turnhoutseweg 30, 2340, Beerse, Belgium
| | - Bert U W Maes
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
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15
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Kou YD, Zhao ZN, Yang X, Kalita SJ, Chen XJ, Xie ZZ, Zhao Y, Huang YY. Stereospecific Synthesis of Fluorinated Pyrazolidinones and Isoxazolidines via a Catalyst-Free 1,3-Dipolar Cycloaddition of β-Fluoroalkylated α,β-Unsaturated 2-Pyridylsulfones. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800435] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ying-Da Kou
- Department of Chemistry; School of Chemistry; Chemical Engineering and Life Science; Wuhan University of Technology; 122 Luoshi Road, Wuhan 430070 Hubei China
| | - Zhen-Ni Zhao
- Department of Chemistry; School of Chemistry; Chemical Engineering and Life Science; Wuhan University of Technology; 122 Luoshi Road, Wuhan 430070 Hubei China
| | - Xing Yang
- Department of Chemistry; School of Chemistry; Chemical Engineering and Life Science; Wuhan University of Technology; 122 Luoshi Road, Wuhan 430070 Hubei China
| | - Subarna Jyoti Kalita
- Department of Chemistry; School of Chemistry; Chemical Engineering and Life Science; Wuhan University of Technology; 122 Luoshi Road, Wuhan 430070 Hubei China
| | - Xue-Jian Chen
- Department of Chemistry; School of Chemistry; Chemical Engineering and Life Science; Wuhan University of Technology; 122 Luoshi Road, Wuhan 430070 Hubei China
| | - Zhi-Zhong Xie
- Department of Chemistry; School of Chemistry; Chemical Engineering and Life Science; Wuhan University of Technology; 122 Luoshi Road, Wuhan 430070 Hubei China
| | - Yan Zhao
- State Key Laboratory of Silicate Materials for Architectures; International School of Materials Science and Engineering; Wuhan University of Technology; 122 Luoshi Road, Wuhan 430070 Hubei China
| | - Yi-Yong Huang
- Department of Chemistry; School of Chemistry; Chemical Engineering and Life Science; Wuhan University of Technology; 122 Luoshi Road, Wuhan 430070 Hubei China
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