1
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Pal S, Das S, Chakraborty S, Khanra S, Paul ND. Zn(II)-Catalyzed Multicomponent Sustainable Synthesis of Pyridines in Air. J Org Chem 2023; 88:3650-3665. [PMID: 36854027 DOI: 10.1021/acs.joc.2c02867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
Herein, we report a Zn(II)-catalyzed solvent-free sustainable synthesis of tri- and tetra-substituted pyridines using alcohols as the primary feedstock and NH4OAc as the nitrogen source. Using a well-defined air-stable Zn(II)-catalyst, 1a, featuring a redox-active tridentate azo-aromatic pincer, 2-((4-chlorophenyl)diazenyl)-1,10-phenanthroline (La), a wide variety of unsymmetrical 2,4,6-substituted pyridines were prepared by three-component coupling of primary and secondary alcohols with NH4OAc. Catalyst 1a is equally compatible with the four-component coupling. Unsymmetrical 2,4,6-substituted pyridines were also prepared via a four-component coupling of a primary alcohol with two different secondary alcohols and NH4OAc. A series of tetra-substituted pyridines were prepared up to 67% yield by coupling primary and secondary alcohols with 1-phenylpropan-1-one or 1,2-diphenylethan-1-one and NH4OAc. The 1a-catalyzed reactions also proceeded efficiently upon replacing the secondary alcohols with the corresponding ketones, producing the desired tri- and tetra-substituted pyridines in higher yields in a shorter reaction time. A few control experiments were performed to unveil the mechanistic aspects, which indicates that the active participation of the aryl-azo ligand during catalysis enables the Zn(II)-complex to act as an efficient catalyst for the present multicomponent reactions. Aerial oxygen acts as an oxidant during the Zn(II)-catalyzed dehydrogenation of alcohols, producing H2O and H2O2 as byproducts.
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Affiliation(s)
- Subhasree Pal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Siuli Das
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Subhajit Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Subhankar Khanra
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Nanda D Paul
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
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2
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Raji Reddy C, Nair K, Patil AD, Donthiri RR, Grée R. Domino alkyne insertion/aldol reaction/aromatization of 2-alkynyl indole-3-carbaldehyde with 1,3-diketones: entry to 2-indolyl phenols. Org Biomol Chem 2023; 21:1046-1055. [PMID: 36625740 DOI: 10.1039/d2ob02025d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A novel one-pot base-promoted insertion of indolyl 2-alkynes into a C-C single bond of 1,3-diketones, followed by intramolecular aldol reaction and dehydrative aromatization is described. This reaction cascade leads to the construction of 2-indolyl phenols involving the formation of the C1-C2 and C3-C4 bonds of phenols resulting from the formal insertion process with a good substrate scope. Further, these bifunctional compounds were used in a novel arylative annulation in the presence of Grignard reagents to provide chromeno-indole frameworks.
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Affiliation(s)
- Chada Raji Reddy
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad - 500007, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Karna Nair
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad - 500007, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Amol D Patil
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad - 500007, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Ramachandra Reddy Donthiri
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad - 500007, India.
| | - René Grée
- University of Rennes, Institut des Sciences Chimiques de Rennes (ISCR), CNRS UMR 6226, F-35000 Rennes, France
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3
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Liu Y, Hu L, Zheng Y, Fang X, Xie Y. Re 2O 7/HReO 4 Mediated Intramolecular Hydroacyloxylation of Unactivated Alkenes: A Dual Hydrogen-Bonding Effect. Org Lett 2023; 25:64-69. [PMID: 36583649 DOI: 10.1021/acs.orglett.2c03846] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
This publication describes the application of Re2O7 in hexafluoroisopropanol (HFIP) for the activation of inert as well as electronically deactivated olefins to facilitate a challenging intramolecular hydroacyloxylation reaction. Both HFIP and an internal carboxy group have been proven to be crucial for the successful implementation of this transformation; these are proposed to assist the formation and stabilization of the key cationic intermediate via hydrogen-bonding interactions with perrhenate anion (ReO4-).
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Affiliation(s)
- Yibing Liu
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
| | - Liqun Hu
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
| | - Yuzhu Zheng
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
| | - Xiong Fang
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
| | - Youwei Xie
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
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4
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Mokkarat A, Kruanetr S, Sakee U. Facial preparation of trifluoroacetic acid-immobilized amino-functionalized silica magnetite nano-catalysts as a highly efficient and reusable for synthesis of β-enaminones. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132745] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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5
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Olding A, Tang M, Ho CC, Fuller RO, Bissember AC. Rhenium-catalysed reactions in chemical synthesis: selected case studies. Dalton Trans 2022; 51:3004-3018. [DOI: 10.1039/d1dt04205j] [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
This Perspective presents and discusses a selection of examples that reinforce the enabling and distinctive reactivity provided by homogeneous rhenium catalysis in chemical synthesis. Specifically, the ability for lower oxidation...
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6
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Liu Y, Luo P, Fu Y, Hao T, Liu X, Ding Q, Peng Y. Recent advances in the tandem annulation of 1,3-enynes to functionalized pyridine and pyrrole derivatives. Beilstein J Org Chem 2021; 17:2462-2476. [PMID: 34630726 PMCID: PMC8474070 DOI: 10.3762/bjoc.17.163] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 09/11/2021] [Indexed: 12/11/2022] Open
Abstract
Great progress has been made in the tandem annulation of enynes in the past few years. This review only presents the corresponding reactions of 1,3-enyne structural motifs to provide the functionalized pyridine and pyrrole derivatives. The functionalization reactions cover iodination, bromination, trifluoromethylation, azidation, carbonylation, arylation, alkylation, selenylation, sulfenylation, amidation, esterification, and hydroxylation. We also briefly introduce the applications of the products and the reaction mechanisms for the synthesis of corresponding N-heterocycles.
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Affiliation(s)
- Yi Liu
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, China
| | - Puying Luo
- Department of Gynaecology, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, 92 Aiguo Road, Nanchang, Jiangxi, 330006, China
| | - Yang Fu
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, China
| | - Tianxin Hao
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, China
| | - Xuan Liu
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, China
| | - Qiuping Ding
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, China
| | - Yiyuan Peng
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, China
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7
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Cao H, Liu XJ, Li PF, Bie FS, Shi YJ, Yan P, Han Y. Microwave-assisted synthesis of β-amino-α,β-unsaturated esters: a rapid and efficient access to (Z)-methyl 3-amino-2-substituted acrylate. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1923751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Han Cao
- Engineering and Technology Research Institute of Lunan Coal Chemical, College of Chemistry, Chemical Engineering and Materials Science, Zaozhuang University, Zaozhuang, Shandong Province, P. R. China
| | - Xue-jing Liu
- Engineering and Technology Research Institute of Lunan Coal Chemical, College of Chemistry, Chemical Engineering and Materials Science, Zaozhuang University, Zaozhuang, Shandong Province, P. R. China
| | - Peng-fei Li
- Shandong Taihe Water, Treatment Technologies Co., Ltd, Zaozhuang, P. R. China
| | - Fu-sheng Bie
- Engineering and Technology Research Institute of Lunan Coal Chemical, College of Chemistry, Chemical Engineering and Materials Science, Zaozhuang University, Zaozhuang, Shandong Province, P. R. China
| | - Yi-jun Shi
- Engineering and Technology Research Institute of Lunan Coal Chemical, College of Chemistry, Chemical Engineering and Materials Science, Zaozhuang University, Zaozhuang, Shandong Province, P. R. China
| | - Peng Yan
- Engineering and Technology Research Institute of Lunan Coal Chemical, College of Chemistry, Chemical Engineering and Materials Science, Zaozhuang University, Zaozhuang, Shandong Province, P. R. China
| | - Ying Han
- Engineering and Technology Research Institute of Lunan Coal Chemical, College of Chemistry, Chemical Engineering and Materials Science, Zaozhuang University, Zaozhuang, Shandong Province, P. R. China
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8
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Chen T, Zheng X, Wang W, Feng Y, Wang Y, Shen J. C-C Bond Cleavage Initiated Cascade Reaction of β-Enaminones: One-Pot Synthesis of 5-Hydroxy-1 H-pyrrol-2(5 H)-ones. J Org Chem 2021; 86:2917-2928. [PMID: 33439021 DOI: 10.1021/acs.joc.0c02832] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
An unprecedented C(CO)-C(Ar) bond cleavage of β-enaminones has been realized under mild and transition-metal-free conditions. The cascade transformation based on this C-C bond cleavage involves 1,3-O/C migration and aerobic hydroxylation and leads to various 5-hydroxy-1H-pyrrol-2(5H)-ones with broad functional group tolerance. The application of this methodology has been showcased by preparing 5-alkoxy-1H-pyrrol-2(5H)-one derivatives and a pyrrolo[2,1-a]isoquinolin-3-one derivative.
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Affiliation(s)
- Ting Chen
- School of Environment and Public Health, Xiamen Key Laboratory of Food and Drug Safety, Xiamen Huaxia University, Xiamen, Fujian 361024, China
| | - Xiujuan Zheng
- School of Environment and Public Health, Xiamen Key Laboratory of Food and Drug Safety, Xiamen Huaxia University, Xiamen, Fujian 361024, China
| | - Wenhua Wang
- School of Environment and Public Health, Xiamen Key Laboratory of Food and Drug Safety, Xiamen Huaxia University, Xiamen, Fujian 361024, China
| | - Yadong Feng
- School of Environment and Public Health, Xiamen Key Laboratory of Food and Drug Safety, Xiamen Huaxia University, Xiamen, Fujian 361024, China
| | - Yanyun Wang
- School of Environment and Public Health, Xiamen Key Laboratory of Food and Drug Safety, Xiamen Huaxia University, Xiamen, Fujian 361024, China
| | - Jinhai Shen
- School of Environment and Public Health, Xiamen Key Laboratory of Food and Drug Safety, Xiamen Huaxia University, Xiamen, Fujian 361024, China.,Fujian Key Laboratory of Molecular Medicine, Huaqiao University, Xiamen, Fujian 361021, China
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9
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Wang W, Cui X, Ma J, Li Y, Wang X. Base-Promoted Ring Expansion Reactions for the Construction of Cycloheptanones through C—C Bond Cleavage. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202101031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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10
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Syntheses and anti-HIV and human cluster of differentiation 4 (CD4) down-modulating potencies of pyridine-fused cyclotriazadisulfonamide (CADA) compounds. Bioorg Med Chem 2020; 28:115816. [PMID: 33181479 DOI: 10.1016/j.bmc.2020.115816] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/06/2020] [Accepted: 10/08/2020] [Indexed: 01/10/2023]
Abstract
CADA compounds selectively down-modulate human cell-surface CD4 protein and are of interest as HIV entry inhibitors and as drugs for asthma, rheumatoid arthritis, diabetes and some cancers. Postulating that fusing a pyridine ring bearing hydrophobic substituents into the macrocyclic scaffold of CADA compounds may lead to potent compounds with improved properties, 17 macrocycles were synthesized, 14 with 12-membered rings having an isobutylene head group, two arenesulfonyl side arms, and fused pyridine rings bearing a para substituent. The analogs display a wide range of CD4 down-modulating and anti-HIV potencies, including some with greater potency than CADA, proving that a highly basic nitrogen atom in the 12-membered ring is not required for potency and that hydrophobic substituents enhance potency of pyridine-fused CADA compounds. Cytotoxicities of the new compounds compared favorably with those of CADA, showing that incorporation of a pyridine ring into the macrocyclic scaffold can produce selective compounds for potently down-modulating proteins of medicinal interest.
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11
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Li M, Wang T, Wang C. Multicomponent Reaction of Pyridinium Salts,
β
‐Nitrostyrenes and Ammonium Acetate under the DBU/Acetic Acid System: Access to 2,4,6‐Triarylpyridine Derivatives. ChemistrySelect 2020. [DOI: 10.1002/slct.202000387] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mingshuang Li
- School of Chemistry and Chemical EngineeringYangzhou University 180 Siwangting Street Yangzhou 225002 P. R. China
| | - Ting Wang
- School of Chemistry and Chemical EngineeringYangzhou University 180 Siwangting Street Yangzhou 225002 P. R. China
| | - Cunde Wang
- School of Chemistry and Chemical EngineeringYangzhou University 180 Siwangting Street Yangzhou 225002 P. R. China
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12
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Liu RH, Shen ZY, Wang C, Loh TP, Hu XH. Selective Dehydrogenative Acylation of Enamides with Aldehydes Leading to Valuable β-Ketoenamides. Org Lett 2020; 22:944-949. [PMID: 31971809 DOI: 10.1021/acs.orglett.9b04495] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We have presented a unique example of dehydrogenative acylation of enamides with aldehydes enabled by an earth-abundant iron catalyst. The protocol provides the straightforward access to valuable β-ketoenamides with ample substrate scope and excellent functional group tolerance. Notably, distinct C-H acylation of enamide rather than at N-H moiety site occurs with absolute Z-selectivity was observed. Late-stage modifications of complex molecules and versatile synthetic utility of β-ketoenamides further highlight the practicability of this transformation.
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Affiliation(s)
- Rui-Hua Liu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Zhen-Yao Shen
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Cong Wang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Teck-Peng Loh
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China.,Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore
| | - Xu-Hong Hu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China
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13
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Ten years of progress in the synthesis of six-membered N-heterocycles from alkynes and nitrogen sources. Tetrahedron 2020. [DOI: 10.1016/j.tet.2019.130876] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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14
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Liu P, Yang M, Gong Y, Yu Y, Zhao YL. Copper-Catalyzed Cascade Cyclization Reaction of Enamines and Electron-Deficient Terminal Alkynes: Synthesis of Polysubstituted Pyrido[1,2-a]indoles. Org Lett 2019; 22:36-40. [DOI: 10.1021/acs.orglett.9b03739] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pei Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Ming Yang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Yue Gong
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Yang Yu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Yu-Long Zhao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
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15
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Kardile RD, Liu RS. Two Distinct Ag(I)- and Au(I)-Catalyzed Olefinations between α-Diazo Esters and N-Boc-Derived Imines. Org Lett 2019; 21:6452-6456. [DOI: 10.1021/acs.orglett.9b02343] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Rahul Dadabhau Kardile
- Frontier Research Center on Fundamental and Applied Sciences of Matters, Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan, ROC
| | - Rai-Shung Liu
- Frontier Research Center on Fundamental and Applied Sciences of Matters, Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan, ROC
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16
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Yang Y, Huang J, Tan H, Kong L, Wang M, Yuan Y, Li Y. Synthesis of cyano-substituted carbazoles via successive C-C/C-H cleavage. Org Biomol Chem 2019; 17:958-965. [PMID: 30631868 DOI: 10.1039/c8ob03031f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A highly efficient protocol for the synthesis of polysubstituted cyano carbazoles has been developed. This process is realized through the tandem reactions of Cs2CO3 promoted C-C σ-bond activation of α-cyano ketones followed by Fe-catalyzed selective C-H and/or C-C bond activations. Two of the sp2 C-H bonds are functionalized, and two of the C-C σ-bonds are cleaved involving a 1,2-acyl migration during the reaction process.
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Affiliation(s)
- Yajie Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering East China Normal University, 500 Dongchuan Road, Shanghai 200241, China.
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17
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Kelgokmen Y, Zora M. A new strategy for the synthesis of pyridines from N-propargylic β-enaminothiones. Org Biomol Chem 2019; 17:2529-2541. [DOI: 10.1039/c8ob03180k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A new robust method for the synthesis of 2,4,5-trisubstituted pyridines with high efficiency and broad functional group tolerance is described.
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Affiliation(s)
- Yilmaz Kelgokmen
- Department of Chemistry
- Middle East Technical University
- 06800 Ankara
- Turkey
| | - Metin Zora
- Department of Chemistry
- Middle East Technical University
- 06800 Ankara
- Turkey
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18
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Zhao Z, Wei H, Xiao K, Cheng B, Zhai H, Li Y. Facile Synthesis of Pyridines from Propargyl Amines: Concise Total Synthesis of Suaveoline Alkaloids. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811812] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Zhiwen Zhao
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 China
| | - Hongbo Wei
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 China
| | - Ke Xiao
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 China
| | - Bin Cheng
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 China
| | - Hongbin Zhai
- Laboratory of Chemical GenomicsSchool of Chemical Biology and BiotechnologyShenzhen Graduate School of Peking University Shenzhen 518055 China
| | - Yun Li
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 China
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19
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Zhao Z, Wei H, Xiao K, Cheng B, Zhai H, Li Y. Facile Synthesis of Pyridines from Propargyl Amines: Concise Total Synthesis of Suaveoline Alkaloids. Angew Chem Int Ed Engl 2018; 58:1148-1152. [PMID: 30411835 DOI: 10.1002/anie.201811812] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Indexed: 01/22/2023]
Abstract
A general and efficient protocol was developed for the synthesis of polysubstituted pyridines from propargyl amines and unsaturated carbonyl compounds through a tandem condensation/alkyne isomerization/6π 3-azatriene electrocyclization sequence. This process was found to be applicable to a wide range of readily available substrates (30 examples, up to 95 % yield) and could be readily performed on a preparative (20 g) scale. By taking advantage of this method for late-stage pyridine incorporation, we successfully completed the collective total synthesis of suveoline, norsuveoline, and macrophylline.
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Affiliation(s)
- Zhiwen Zhao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Hongbo Wei
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Ke Xiao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Bin Cheng
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Hongbin Zhai
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen, 518055, China
| | - Yun Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
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20
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Lui EKJ, Hergesell D, Schafer LL. N-Silylenamines as Reactive Intermediates: Hydroamination for the Modular Synthesis of Selectively Substituted Pyridines. Org Lett 2018; 20:6663-6667. [PMID: 30351966 DOI: 10.1021/acs.orglett.8b02703] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A modular and selective synthesis of mono-, di-, tri-, tetra-, and pentasubstituted pyridines is reported. Hydroamination of alkynes with N-silylamine using a bis(amidate)bis(amido)titanium(IV) precatalyst furnishes the regioselective formation of N-silylenamines. Addition of α,β-unsaturated carbonyls to the crude mixtures followed by oxidation affords 47 examples of pyridines in yields of up to 96%. This synthetic route allows for the synthesis of diverse pyridines containing variable substitution patterns, including pharmaceutically relevant 2,4,5-trisubstituted pyridines, using this one-pot protocol.
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Affiliation(s)
- Erica K J Lui
- Department of Chemistry , University of British Columbia , 2036 Main Mall , Vancouver , British Columbia , Canada V6T 1Z1
| | - Daniel Hergesell
- Department of Chemistry , University of British Columbia , 2036 Main Mall , Vancouver , British Columbia , Canada V6T 1Z1
| | - Laurel L Schafer
- Department of Chemistry , University of British Columbia , 2036 Main Mall , Vancouver , British Columbia , Canada V6T 1Z1
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21
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Duarah G, Kaishap PP, Begum T, Gogoi S. Recent Advances in Ruthenium(II)-Catalyzed C−H Bond Activation and Alkyne Annulation Reactions. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800755] [Citation(s) in RCA: 125] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- G. Duarah
- Chemical Sciences & Technology Division; CSIR - North East Institute of Science and Technology; Jorhat - 785006, AcSIR India
| | - P. P. Kaishap
- Chemical Sciences & Technology Division; CSIR - North East Institute of Science and Technology; Jorhat - 785006, AcSIR India
| | - T. Begum
- Chemical Sciences & Technology Division; CSIR - North East Institute of Science and Technology; Jorhat - 785006, AcSIR India
| | - S. Gogoi
- Chemical Sciences & Technology Division; CSIR - North East Institute of Science and Technology; Jorhat - 785006, AcSIR India
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22
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Park GE, Maezono SMB, Ha JH, Shim JJ, Kim SH, Lee YR. Transition-Metal-Free Regioselective Construction of Diverse 3-Carbonyl Functionalized 4-PyronesviaThermal Wolff-Rearrangement of Diazodicarbonyls. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800874] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ga Eul Park
- School of Chemical Engineering; Yeungnam University; Gyeongsan 712-749 Republic of Korea
| | | | - Ji Hyeon Ha
- School of Chemical Engineering; Yeungnam University; Gyeongsan 712-749 Republic of Korea
| | - Jae-Jin Shim
- School of Chemical Engineering; Yeungnam University; Gyeongsan 712-749 Republic of Korea
| | - Sung Hong Kim
- Analysis Research Division; Daegu Center; Korea Basic Science Institute; Daegu 41566 Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering; Yeungnam University; Gyeongsan 712-749 Republic of Korea
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23
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Wang M, Kong L, Wang Y, Song B, Sun Y, Tang R, Li Y. Sequential C–C σ-Bond Cleavage/(sp2) C–O Bond Formation via C–H Functionalization toward Pyranoindolones Fused with Medium-Sized Rings. Org Lett 2018; 20:6130-6134. [DOI: 10.1021/acs.orglett.8b02580] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Mengdan Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Lingkai Kong
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Ye Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Bo Song
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yue Sun
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Rong Tang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yanzhong Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
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24
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Rivera RP, Hassan S, Ehlers P, Lecka J, Sévigny J, Rodríguez ET, Iqbal J, Langer P. Chemoselective Synthesis and Human Ecto‐5′‐nucleotidase Inhibitory Activity of 2‐Trifluoromethyl‐4,6‐diarylquinolines. ChemistrySelect 2018. [DOI: 10.1002/slct.201800917] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Rodisnel P. Rivera
- Universität RostockInstitut für Chemie A.-Einstein-Str. 3a 18059 Rostock Germany
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock A.-Einstein-Str. 29a 18059 Rostock Germany
- University of GranmaStudy Center of Applied Chemistry Carretera de Manzanillo, Km 17 ${{ 1/2 }}$ 85100 Bayamo Granma Cuba
| | - Sidra Hassan
- Centre for Advanced Drug ResearchCOMSATS University IslamabadAbbottabad Campus Abbottabad 22060 Pakistan
| | - Peter Ehlers
- Universität RostockInstitut für Chemie A.-Einstein-Str. 3a 18059 Rostock Germany
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock A.-Einstein-Str. 29a 18059 Rostock Germany
| | - Joanna Lecka
- Départment de microbiologie-infectiologie et d'immunologieFaculté de MédecineUniversité Laval, Québec, QC, G1 V 0 A6 Canada
- Centre de Recherche du CHU de Québec – Université Laval, Québec, QC, G1 V 4G2 Canada
| | - Jean Sévigny
- Départment de microbiologie-infectiologie et d'immunologieFaculté de MédecineUniversité Laval, Québec, QC, G1 V 0 A6 Canada
- Centre de Recherche du CHU de Québec – Université Laval, Québec, QC, G1 V 4G2 Canada
| | - Eugenio T. Rodríguez
- Universität RostockInstitut für Chemie A.-Einstein-Str. 3a 18059 Rostock Germany
- University of GranmaStudy Center of Applied Chemistry Carretera de Manzanillo, Km 17 ${{ 1/2 }}$ 85100 Bayamo Granma Cuba
| | - Jamshed Iqbal
- Centre for Advanced Drug ResearchCOMSATS University IslamabadAbbottabad Campus Abbottabad 22060 Pakistan
| | - Peter Langer
- Universität RostockInstitut für Chemie A.-Einstein-Str. 3a 18059 Rostock Germany
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock A.-Einstein-Str. 29a 18059 Rostock Germany
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25
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Zhu XQ, Sun Q, Zhang ZX, Zhou B, Xie PX, Shen WB, Lu X, Zhou JM, Ye LW. Zinc-catalyzed reaction of isoxazoles with thioynol ethers involving an unprecedented 1,2-sulfur migration. Chem Commun (Camb) 2018; 54:7435-7438. [PMID: 29789833 DOI: 10.1039/c8cc03140a] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A novel zinc-catalyzed reaction of isoxazoles with thioynol ethers involving an unprecedented 1,2-sulfur migration has been developed, which represents the first example of a non-noble metal-catalyzed reaction between isoxazoles and alkynes. This method allows the facile and atom-economical synthesis of a range of valuable β-keto enamides. Moreover, the computational study provides further evidence for the feasibility of the proposed reaction mechanism.
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Affiliation(s)
- Xin-Qi Zhu
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
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26
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Morita-Baylis-Hillman enal-based triple cascade strategy for anti-selective synthesis of highly functionalized tetrahydropyridines using iminium-enamine catalysis. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.081] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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27
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Yao Q, Kong L, Wang M, Yuan Y, Sun R, Li Y. Transition-Metal-Free Ring Expansion Reactions of Indene-1,3-dione: Synthesis of Functionalized Benzoannulated Seven-Membered Ring Compounds. Org Lett 2018. [DOI: 10.1021/acs.orglett.8b00206] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Qiyi Yao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Lingkai Kong
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Mengdan Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yang Yuan
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Ruizhuo Sun
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yanzhong Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
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28
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Safaiee M, Ebrahimghasri B, Zolfigol MA, Baghery S, Khoshnood A, Alonso DA. Synthesis and application of chitosan supported vanadium oxo in the synthesis of 1,4-dihydropyridines and 2,4,6-triarylpyridines via anomeric based oxidation. NEW J CHEM 2018. [DOI: 10.1039/c8nj02062k] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
1,4-Dihydropyridines and 2,4,6-triarylpyridines were synthesized via anomeric based oxidation using chitosan supported vanadium oxo.
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Affiliation(s)
- Maliheh Safaiee
- Department of Medicinal Plants Production
- University of Nahavand
- Nahavand 6593139565
- Iran
| | - Bahar Ebrahimghasri
- Department of Organic Chemistry
- Faculty of Chemistry
- Bu-Ali Sina University
- Hamedan 6517838683
- Iran
| | - Mohammad Ali Zolfigol
- Department of Organic Chemistry
- Faculty of Chemistry
- Bu-Ali Sina University
- Hamedan 6517838683
- Iran
| | - Saeed Baghery
- Department of Organic Chemistry
- Faculty of Chemistry
- Bu-Ali Sina University
- Hamedan 6517838683
- Iran
| | - Abbas Khoshnood
- Instituto de Síntesis Orgánica and Departamento de Química Orgánica
- Universidad de Alicante
- Apdo. 9903080 Alicante
- Spain
| | - Diego A. Alonso
- Instituto de Síntesis Orgánica and Departamento de Química Orgánica
- Universidad de Alicante
- Apdo. 9903080 Alicante
- Spain
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29
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Yao Q, Kong L, Zhang F, Tao X, Li Y. Base-Promoted Tandem Reaction towards Conjugated Dienone or Chromone Derivatives with a Cyano Group: Insertion of Alkynes into C-C σ-Bonds of 3-Oxopropanenitriles. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700565] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Qiyi Yao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Lingkai Kong
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Fangfang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Xianghua Tao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Yanzhong Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 People's Republic of China
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30
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Sarkar D, Rout N, Ghosh MK, Giri S, Neue K, Reuter H. Atom-Economical Palladium Carbon-Catalyzed de Novo Synthesis of Trisubstituted Nicotinonitriles. J Org Chem 2017; 82:9012-9022. [PMID: 28799333 DOI: 10.1021/acs.joc.7b01332] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A de novo palladium carbon-catalyzed synthesis of trisubstituted nicotinonitriles from easily synthesized homopropagylic or homoallylic aromatic alcohols in the presence of nitriles has been explored. The mechanism proceeds with an interesting generation of a Pd(II)-C palladacycle followed by an oxidative aromatization to generate the pyridine core. The pyridine core is generated with a noteworthy C-C bond cleavage in the case of the substituted nitriles. The moderate yields and easy separation of the products lend a unique importance to this one-pot methodology.
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Affiliation(s)
- Debayan Sarkar
- Department of Chemistry, NIT Rourkela , Rourkela 769008, India
| | - Nilendri Rout
- Department of Chemistry, NIT Rourkela , Rourkela 769008, India
| | | | - Santanab Giri
- Department of Chemistry, NIT Rourkela , Rourkela 769008, India
| | - Kornelius Neue
- Institute of Chemistry of New Materials, University of Osnabrück , Barbarastraβe-6, 49074 Osnabrück, Germany
| | - Hans Reuter
- Institute of Chemistry of New Materials, University of Osnabrück , Barbarastraβe-6, 49074 Osnabrück, Germany
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31
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Lankri D, Albarghouti G, Mahameed M, Tsvelikhovsky D. Multifaceted α-Enaminone: Adaptable Building Block for Synthesis of Heterocyclic Scaffolds Through Conceptually Distinct 1,2-, 1,3-, 1,4-, and C-O Bond Forming Annulations. J Org Chem 2017. [PMID: 28627896 DOI: 10.1021/acs.joc.7b00516] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The new reactivity of α,β-unsaturated enaminones driven by their "dual electronic attitude" is reported. We introduce unexplored, α-enaminone synthones and reveal the unusual functionalities of these building blocks. The feasibility of this new concept is demonstrated in the direct functionalization of enaminone precursors, such as alkylation; 1,2- 1,3-, or 1,4-addition; and C-O bond formation. The general and potential applicability is presented through the collective synthesis of several important classes of heterocycles via controlled cyclizations of easily accessible common precursors. The rapid composition of novel key α-enaminone synthones yields an assembly of oxazines, azaspirones, quinolinones, and quinolinols in a regio- and chemoselective fashion.
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Affiliation(s)
- David Lankri
- The Institute for Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem , Jerusalem 91120, Israel
| | - Ghassan Albarghouti
- The Institute for Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem , Jerusalem 91120, Israel
| | - Mohamed Mahameed
- The Institute for Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem , Jerusalem 91120, Israel
| | - Dmitry Tsvelikhovsky
- The Institute for Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem , Jerusalem 91120, Israel
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32
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Tan WW, Ong YJ, Yoshikai N. Synthesis of Highly Substituted Pyridines through Copper-Catalyzed Condensation of Oximes and α,β-Unsaturated Imines. Angew Chem Int Ed Engl 2017; 56:8240-8244. [DOI: 10.1002/anie.201704378] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Indexed: 12/31/2022]
Affiliation(s)
- Wei Wen Tan
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Yew Jin Ong
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Naohiko Yoshikai
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
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33
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Tan WW, Ong YJ, Yoshikai N. Synthesis of Highly Substituted Pyridines through Copper-Catalyzed Condensation of Oximes and α,β-Unsaturated Imines. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704378] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Wei Wen Tan
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Yew Jin Ong
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Naohiko Yoshikai
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
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34
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Affiliation(s)
- Guoliang Mao
- Provincial Key Laboratory of Oil and Gas Chemical Technology; College of Chemistry and Chemical Engineering; Northeast Petroleum University; 163318 Daqing China
| | - Qiang Huang
- Provincial Key Laboratory of Oil and Gas Chemical Technology; College of Chemistry and Chemical Engineering; Northeast Petroleum University; 163318 Daqing China
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Molecular Recognition and Function; CAS Research/Education Center for Excellence in Molecular Sciences; Institute of Chemistry, Chinese Academy of Sciences; 100190 Beijing China
| | - Congyang Wang
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Molecular Recognition and Function; CAS Research/Education Center for Excellence in Molecular Sciences; Institute of Chemistry, Chinese Academy of Sciences; 100190 Beijing China
- University of Chinese Academy of Sciences; 100049 Beijing China
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35
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Cui HL, Peng LJ, Zhou HL, You XL, Jiang XJ. Stereoselective synthesis of enamino ketones through an aza-Michael/hydrolysis cascade reaction. Org Biomol Chem 2017; 15:5121-5125. [DOI: 10.1039/c7ob01032j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly functionalized (Z)-β-enamino ketones have been prepared from readily available 3,4-dihydroisoquinoline imines and ynones through an aza-Michael/hydrolysis cascade reaction.
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Affiliation(s)
- Hai-Lei Cui
- International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P.R. China
| | - Li-Jie Peng
- International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P.R. China
| | - Hai-Lin Zhou
- International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P.R. China
| | - Xiao-Lin You
- International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P.R. China
| | - Xiao-Jie Jiang
- International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P.R. China
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36
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Zhang F, Yao Q, Yuan Y, Xu M, Kong L, Li Y. Base-mediated insertion reaction of alkynes into carbon–carbon σ-bonds of ethanones: synthesis of hydroxydienone and chromone derivatives. Org Biomol Chem 2017; 15:2497-2500. [DOI: 10.1039/c7ob00476a] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Base-promoted C–C σ-bond insertion with methylene compounds bearing only one EWG (C–C σ-bond insertion/cyclization).
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Affiliation(s)
- Fangfang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- China
| | - Qiyi Yao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- China
| | - Yang Yuan
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- China
| | - Murong Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- China
| | - Lingkai Kong
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- China
| | - Yanzhong Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- China
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37
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Majee D, Biswas S, Mobin SM, Samanta S. Domino reaction of cyclic sulfamidate imines with Morita–Baylis–Hillman acetates promoted by DABCO: a metal-free approach to functionalized nicotinic acid derivatives. Org Biomol Chem 2017; 15:3286-3297. [DOI: 10.1039/c7ob00240h] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of 4,6-diarylnicotinates have been prepared in good to excellent yields via a domino reaction of cyclic sulfamidate imines with MBH acetates in 2-MeTHF promoted by DABCO under an O2 atmosphere.
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Affiliation(s)
- Debashis Majee
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Simrol
- India
| | - Soumen Biswas
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Simrol
- India
| | - Shaikh M. Mobin
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Simrol
- India
| | - Sampak Samanta
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Simrol
- India
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38
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Guchhait SK, Hura N, Sinha K, Panda D. Pyridine C3-arylation of nicotinic acids accessible via a multicomponent reaction: an entry to all-substituted-3,4-diarylated pyridines. RSC Adv 2017. [DOI: 10.1039/c6ra28299g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
An efficient route for the synthesis of all-substituted/functionalized pyridines has been developed. Several of the synthesized compounds exhibited significant anti-proliferative properties.
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Affiliation(s)
- Sankar K. Guchhait
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Mohali-160062
- India
| | - Neha Hura
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Mohali-160062
- India
| | - Kanchan Sinha
- Department of Biosciences and Bioengineering
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Dulal Panda
- Department of Biosciences and Bioengineering
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
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39
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Zhou Y, Tao X, Yao Q, Zhao Y, Li Y. Insertion of Isolated Alkynes into Carbon-Carbon σ-Bonds of Unstrained Cyclic β-Ketoesters via Transition-Metal-Free Tandem Reactions: Synthesis of Medium-Sized Ring Compounds. Chemistry 2016; 22:17936-17939. [DOI: 10.1002/chem.201603798] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Yuanyuan Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 P. R. China
| | - Xianghua Tao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 P. R. China
| | - Qiyi Yao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 P. R. China
| | - Yulei Zhao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 P. R. China
| | - Yanzhong Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 P. R. China
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40
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Cheng X, Zhou Y, Zhang F, Zhu K, Liu Y, Li Y. Base-Promoted Tandem Reaction Involving Insertion into Carbon-Carbon σ-Bonds: Synthesis of Xanthone and Chromone Derivatives. Chemistry 2016; 22:12655-9. [DOI: 10.1002/chem.201602064] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Indexed: 12/20/2022]
Affiliation(s)
- Xingcan Cheng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 China
| | - Yuanyuan Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 China
| | - Fangfang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 China
| | - Kai Zhu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 China
| | - Yuanyuan Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 China
| | - Yanzhong Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 China
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41
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Barday M, Ho KYT, Halsall CT, Aïssa C. Regioselective Synthesis of 3-Hydroxy-4,5-alkyl-Substituted Pyridines Using 1,3-Enynes as Alkynes Surrogates. Org Lett 2016; 18:1756-9. [DOI: 10.1021/acs.orglett.6b00451] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Manuel Barday
- Department
of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
| | - Kelvin Y. T. Ho
- Department
of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
| | - Christopher T. Halsall
- Oncology
Innovative Medicines Unit, AstraZeneca, Mereside, Alderley Park, Macclesfield, Cheshire SK10 4TG, United Kingdom
| | - Christophe Aïssa
- Department
of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
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42
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Kelgokmen Y, Zora M. Facile synthesis of heavily-substituted alkynylpyridines via a Sonogashira approach. RSC Adv 2016. [DOI: 10.1039/c5ra21701f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
A robust synthesis of highly-substituted alkynylpyridines via a Sonogashira approach is described, providing a library of functionalized pyridines for biological studies.
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Affiliation(s)
- Yilmaz Kelgokmen
- Department of Chemistry
- Middle East Technical University
- 06800 Ankara
- Turkey
| | - Metin Zora
- Department of Chemistry
- Middle East Technical University
- 06800 Ankara
- Turkey
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43
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Qing X, Wang T, Zhang F, Wang C. One-pot synthesis of 2,4,6-triarylpyridines from β-nitrostyrenes, substituted salicylic aldehydes and ammonium acetate. RSC Adv 2016. [DOI: 10.1039/c6ra18630k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The diversity-oriented synthesis of 2,4,6-trisubstituted pyridines via K2CO3-promoted multicomponent reactions of the β-nitrostyrenes, available substituted salicylic aldehydes and ammonium acetate have been developed.
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Affiliation(s)
- Xushun Qing
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Ting Wang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Feixiang Zhang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Cunde Wang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
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44
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Karadeniz E, Zora M, Kılıçaslan NZ. Facile synthesis of aryl-substituted pyridines via Suzuki–Miyaura approach. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.09.063] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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45
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Jiang H, Yang J, Tang X, Li J, Wu W. Cu-Catalyzed Three-Component Cascade Annulation Reaction: An Entry to Functionalized Pyridines. J Org Chem 2015; 80:8763-71. [DOI: 10.1021/acs.joc.5b01621] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Huanfeng Jiang
- School
of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jidan Yang
- School
of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xiaodong Tang
- School
of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jianxiao Li
- School
of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510640, China
| | - Wanqing Wu
- School
of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510640, China
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46
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Reimann S, Ehlers P, Parpart S, Surkus A, Spannenberg A, Langer P. Site-selective synthesis of arylated pyridines by Suzuki–Miyaura reactions of 2,3,5,6-tetrachloropyridine. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.05.114] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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47
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Cheng G, Weng Y, Yang X, Cui X. Base-Promoted N-Pyridylation of Heteroarenes Using N-Propargyl Enaminones as Equivalents of Pyridine Scaffolds. Org Lett 2015. [PMID: 26200227 DOI: 10.1021/acs.orglett.5b01733] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
N-Pyridylation of various N-heteroarenes, including N-heteroarene-containing peptides, was achieved using N-propargyl enaminones (isolated or generated in situ from propargyl amine and propynones) as masked polysubstituted pyridine cores. This metal-free procedure proceeds under mild reaction conditions and generates 1 equiv of H2O as the sole byproduct.
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Affiliation(s)
- Guolin Cheng
- Engineering Research Center of Molecular Medicine, Ministry of Education, Key Laboratory of Xiamen Marine and Gene Drugs, Institutes of Molecular Medicine and School of Biomedical Sciences, Huaqiao University, Xiamen 361021, China
| | - Yunxiang Weng
- Engineering Research Center of Molecular Medicine, Ministry of Education, Key Laboratory of Xiamen Marine and Gene Drugs, Institutes of Molecular Medicine and School of Biomedical Sciences, Huaqiao University, Xiamen 361021, China
| | - Xifa Yang
- Engineering Research Center of Molecular Medicine, Ministry of Education, Key Laboratory of Xiamen Marine and Gene Drugs, Institutes of Molecular Medicine and School of Biomedical Sciences, Huaqiao University, Xiamen 361021, China
| | - Xiuling Cui
- Engineering Research Center of Molecular Medicine, Ministry of Education, Key Laboratory of Xiamen Marine and Gene Drugs, Institutes of Molecular Medicine and School of Biomedical Sciences, Huaqiao University, Xiamen 361021, China
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48
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Wu J, Xu W, Yu ZX, Wang J. Ruthenium-Catalyzed Formal Dehydrative [4 + 2] Cycloaddition of Enamides and Alkynes for the Synthesis of Highly Substituted Pyridines: Reaction Development and Mechanistic Study. J Am Chem Soc 2015; 137:9489-96. [DOI: 10.1021/jacs.5b06400] [Citation(s) in RCA: 152] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jicheng Wu
- Department
of Pharmacology and Pharmaceutical Sciences, School of Medicine, Tsinghua University, Beijing 100084, China
| | - Wenbo Xu
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic
Chemistry and Molecular Engineering, College of Chemistry, Peking University, Beijing 100871, China
| | - Zhi-Xiang Yu
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic
Chemistry and Molecular Engineering, College of Chemistry, Peking University, Beijing 100871, China
| | - Jian Wang
- Department
of Pharmacology and Pharmaceutical Sciences, School of Medicine, Tsinghua University, Beijing 100084, China
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49
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Rieckhoff S, Hellmuth T, Peters R. Regioselective Pd-Catalyzed Synthesis of 2,3,6-Trisubstituted Pyridines from Isoxazolinones. J Org Chem 2015; 80:6822-30. [PMID: 26101943 DOI: 10.1021/acs.joc.5b01065] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Substituted pyridines are prevalent heterocycles of fundamental importance. Their efficient regioselective preparation is often still a challenge despite a large number of reported synthetic methodologies. In this letter we report an operationally simple approach that makes use of readily accessible isoxazolinones. The protocol involves a Pd(II)-catalyzed C-regioselective 1,4-addition to vinylketones, followed by a Pd(0)-catalyzed transformation, which is assumed to proceed via vinylnitrene-Pd intermediates. Both hydrogen and air are necessary for the pyridine formation step and could be employed at ratios above the upper explosive limit thus avoiding a safety issue. This new strategy allows an effective, scalable and practical access to various previously unknown 2,3,6-trisubstituted pyridines.
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Affiliation(s)
- Stefan Rieckhoff
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Tina Hellmuth
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - René Peters
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
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50
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Shen J, Cai D, Kuai C, Liu Y, Wei M, Cheng G, Cui X. Base-Promoted β-C(sp3)–H Functionalization of Enaminones: An Approach to Polysubstituted Pyridines. J Org Chem 2015; 80:6584-9. [DOI: 10.1021/acs.joc.5b00635] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jinhai Shen
- Key Laboratory of Xiamen Marine and Gene Drugs, Institutes of Molecular Medicine and School of Biomedical Sciences, Huaqiao University & Engineering Research Center of Molecular Medicine, Ministry of Education, Xiamen 361021, China
| | - Dingding Cai
- Key Laboratory of Xiamen Marine and Gene Drugs, Institutes of Molecular Medicine and School of Biomedical Sciences, Huaqiao University & Engineering Research Center of Molecular Medicine, Ministry of Education, Xiamen 361021, China
| | - Changsheng Kuai
- Key Laboratory of Xiamen Marine and Gene Drugs, Institutes of Molecular Medicine and School of Biomedical Sciences, Huaqiao University & Engineering Research Center of Molecular Medicine, Ministry of Education, Xiamen 361021, China
| | - Yunqi Liu
- Key Laboratory of Xiamen Marine and Gene Drugs, Institutes of Molecular Medicine and School of Biomedical Sciences, Huaqiao University & Engineering Research Center of Molecular Medicine, Ministry of Education, Xiamen 361021, China
| | - Ming’e Wei
- Key Laboratory of Xiamen Marine and Gene Drugs, Institutes of Molecular Medicine and School of Biomedical Sciences, Huaqiao University & Engineering Research Center of Molecular Medicine, Ministry of Education, Xiamen 361021, China
| | - Guolin Cheng
- Key Laboratory of Xiamen Marine and Gene Drugs, Institutes of Molecular Medicine and School of Biomedical Sciences, Huaqiao University & Engineering Research Center of Molecular Medicine, Ministry of Education, Xiamen 361021, China
| | - Xiuling Cui
- Key Laboratory of Xiamen Marine and Gene Drugs, Institutes of Molecular Medicine and School of Biomedical Sciences, Huaqiao University & Engineering Research Center of Molecular Medicine, Ministry of Education, Xiamen 361021, China
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