1
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Han J, Tang X, Cheng X, Zeng T, Tian Y, Gong Y, Li B. Copper-Catalyzed Nucleophilic Cycloisomerization Cascade Constructing Azepinoindolizine. Org Lett 2024; 26:8057-8062. [PMID: 39248598 DOI: 10.1021/acs.orglett.4c02933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/10/2024]
Abstract
Numerous effective bioisosteric replacements have been identified through substituting scaffolds and functional groups in lead molecules with alternative ones that preserve or enhance the desired biological activity of the original compound. Here, a copper-catalyzed nucleophilic cycloisomerization was developed to access potential bioisosteric replacements of azepinoindole. In this process, "tetra-alkene" characteristic of indolizine undergoes a 12π electrocyclization, offering a complementary method to obtain azepinoindolizine derivatives that are otherwise challenging to prepare through conventional means.
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Affiliation(s)
- Jingpeng Han
- School of Environmental and Chemical Engineering, Chongqing Three Gorges University, Chongqing 404000, People's Republic of China
| | - Xuan Tang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Xue Cheng
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Tu Zeng
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Yi Tian
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Yingjian Gong
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Baosheng Li
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, People's Republic of China
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2
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Ahmad F, Ranga PK, Fatma S, Vijaya Anand R. Domino Approach to Heterocycles-Based Unsymmetrical Triarylmethanes through Heteroannulation of 2-(2-Enynyl)-pyridines with Enaminones. J Org Chem 2024; 89:12104-12117. [PMID: 39137191 DOI: 10.1021/acs.joc.4c01006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
Herein, we report a copper-catalyzed protocol to access unsymmetrical triarylmethanes containing both indolizine and the chromone scaffolds in the same molecule via a 5-endo-dig cyclization of 2-(2-enynyl)-pyridines followed by reaction with 2-hydroxyaryl enaminones. A variety of 2-hydroxyaryl enaminones and 2-(2-enynyl)-pyridines were subjected to reaction under the optimal reaction conditions, and the respective triarylmethanes were obtained in good to excellent yields.
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Affiliation(s)
- Feroz Ahmad
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S.A.S. Nagar, Manauli (PO), Mohali 140306, Punjab, India
| | - Pavit K Ranga
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S.A.S. Nagar, Manauli (PO), Mohali 140306, Punjab, India
| | - Shaheen Fatma
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S.A.S. Nagar, Manauli (PO), Mohali 140306, Punjab, India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S.A.S. Nagar, Manauli (PO), Mohali 140306, Punjab, India
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3
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Li F, Yang Q, Li H, Cui YZ, Wang YB. Silver(I)-Promoted [3 + 3]-Cycloaddition of 2-(2-Enynyl)quinolines with N'-(2-Alkynylbenzylidene)hydrazides. J Org Chem 2024; 89:11567-11575. [PMID: 39087584 DOI: 10.1021/acs.joc.4c01264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
An effective and straightforward Ag(I)-mediated annulation of 2-(2-enynyl)quinolines and N'-(2-alkynylbenzylidene)hydrazides was developed, forging various synthetically challenging 17bH-isoquinolino[2'',1'':1',6']pyridazino[4',5':3,4]pyrrolo[1,2-a]quinolines, including different nitrogen-containing fused rings, in moderate to excellent yields. This one-pot cycloaddition strategy features exclusive regioselectivity, high atom economy, and broad substrate scope under mild conditions. The practicality and reliability of this cycloaddition reaction was demonstrated by a successful scale-up synthesis.
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Affiliation(s)
- Feng Li
- College of Chemistry and Molecular Science, Henan University, Kaifeng 475004, China
| | - Qing Yang
- College of Chemistry and Molecular Science, Henan University, Kaifeng 475004, China
| | - He Li
- College of Chemistry and Molecular Science, Henan University, Kaifeng 475004, China
| | - Yan-Zhao Cui
- College of Chemistry and Molecular Science, Henan University, Kaifeng 475004, China
| | - Yan-Bo Wang
- College of Chemistry and Molecular Science, Henan University, Kaifeng 475004, China
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4
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Li F, Yang Q, Liu MY, An PX, Du YL, Wang YB. Ag(I)-Mediated Annulation of 2-(2-Enynyl)pyridines and Propargyl Amines to Access 1-(2 H-Pyrrol-3-yl)indolizines. J Org Chem 2024; 89:304-312. [PMID: 38126126 DOI: 10.1021/acs.joc.3c02024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
An effective Ag(I)-mediated annulation of 2-(2-enynyl)pyridines and propargyl amines was developed, unexpectedly affording a broad range of functionalized 1-(2H-pyrrol-3-yl)indolizines in moderate to excellent yields. The developed method is characterized by operational simplicity, ready availability of starting materials, high regioselectivity, and broad substrate scope under mild reaction conditions. The Ag(I)-promoted cyclization of 2-(2-enynyl)pyridines and propargyl amines possibly results in the formation of the spiroindolizine, the ring-opening rearrangement of which may give the 1-(2H-pyrrol-3-yl)indolizine. Furthermore, a gram-scale reaction and synthetic transformations are also studied.
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Affiliation(s)
- Feng Li
- College of Chemistry and Molecular Science, Henan University, Kaifeng, Henan 475004, China
| | - Qing Yang
- College of Chemistry and Molecular Science, Henan University, Kaifeng, Henan 475004, China
| | - Ming-Yue Liu
- College of Chemistry and Molecular Science, Henan University, Kaifeng, Henan 475004, China
| | - Pei-Xuan An
- College of Chemistry and Molecular Science, Henan University, Kaifeng, Henan 475004, China
| | - Ya-Long Du
- College of Chemistry and Molecular Science, Henan University, Kaifeng, Henan 475004, China
| | - Yan-Bo Wang
- College of Chemistry and Molecular Science, Henan University, Kaifeng, Henan 475004, China
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5
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Lv X, Gao P, Zhao X, Jiang Z. Metal-Free Construction of Multisubstituted Indolizines via Intramolecular Amination of Allylic Alcohols. J Org Chem 2023. [PMID: 37229619 DOI: 10.1021/acs.joc.3c00469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
An intramolecular amination of allylic alcohols is developed as an efficient and general access to biologically important multisubstituted indolizines and their variants. Two metal-free synthetic platforms including using aqueous hydrochloric acid solution as the solvent and p-toluenesulfonic acid as the catalyst have been established, enabling the divergent synthesis of these valuable compounds in high yields.
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Affiliation(s)
- Xinxin Lv
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, College of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453000, People's Republic of China
| | - Penghui Gao
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, College of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453000, People's Republic of China
| | - Xiaowei Zhao
- International Scientific and Technological Cooperation Base of Chiral Chemistry, Henan University, Kaifeng, Henan 475004, People's Republic of China
| | - Zhiyong Jiang
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, College of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453000, People's Republic of China
- International Scientific and Technological Cooperation Base of Chiral Chemistry, Henan University, Kaifeng, Henan 475004, People's Republic of China
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6
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Badaro JSA, Koszarna B, Bousquet M, Ouellette ET, Jacquemin D, Gryko DT. The Kröhnke synthesis of benzo[a]indolizines revisited: towards small, red light emitters. Org Chem Front 2022. [DOI: 10.1039/d2qo00097k] [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
Benzo[a]indolizines with an ordered arrangement of various electron-withdrawing substituents (NO2, CF3, CN, CO2R and COPh) were prepared directly from pyridinium salts and chloronitroarenes, allowing for refined control of the photophysical...
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7
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Xiao X, Han P, Zhou H, Liu J. Palladium-Catalyzed Difunctionalization of Alkenes by Relay Coupling with Propargylic Pyridines: Synthesis of Indolizine and Indolizinone-Containing Bisheterocycles. J Org Chem 2021; 86:18179-18191. [PMID: 34860532 DOI: 10.1021/acs.joc.1c02438] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Palladium-catalyzed arylation/heteroarylation of aryl halide-tethered alkenes with propargylic pyridines has been established, which provides direct and efficient access to various oxindole, azaoxindole, dihydrobenzopyran, indole, and benzofuran-linked indolizines in good yields with a broad substrate scope and high functional group tolerance. This process enables the formation of one C-N and two C-C bonds in a single operation through an intramolecular carbopalladation and cycloisomerization sequence. Furthermore, an indolizinone-linked bisheterocyclic framework containing indole and benzofuran could be synthesized conveniently from tertiary propargylic alcohols involving methyl or phenyl migration.
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Affiliation(s)
- Xiao Xiao
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Puren Han
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Huiwen Zhou
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Jianchao Liu
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China
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8
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Xiong Z, Duan J, Li X, Wang X, Addepalli Y, Lu M, Yao W, He L, Wang Z. Palladium-Catalyzed Selective [2 + 2 + 2] Annulation of 2-(2-Enynyl)pyridines with Arynes. J Org Chem 2021; 86:12403-12411. [PMID: 34379414 DOI: 10.1021/acs.joc.1c01393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The palladium-catalyzed chemo- and stereoselective [2 + 2 + 2] annulation reaction of 2-(2-enynyl)pyridines with arynes has been developed. A wide range of (E)- or (E/Z)-isomers of 2-(2-enynyl)pyridines and arynes was tolerated, providing a spectrum of (E)-phenanthrenylated 2-alkenylpyridines in good yield, together with the generation of a chiral axis between an alkene and a phenanthrene ring.
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Affiliation(s)
- Zongli Xiong
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P.R. China
| | - Jingxiang Duan
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P.R. China
| | - Xiaoyi Li
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P.R. China
| | - Xin Wang
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P.R. China
| | - Yesu Addepalli
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P.R. China
| | - Mengxue Lu
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P.R. China
| | - Weijun Yao
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P.R. China
| | - Ling He
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P.R. China
| | - Zhen Wang
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P.R. China
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9
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Hu W, Zhan Q, Zhou H, Cao S, Jiang Z. Radical-based functionalization-oriented construction: rapid assembly of azaarene-substituted highly functionalized pyrroles. Chem Sci 2021; 12:6543-6550. [PMID: 34040730 PMCID: PMC8132952 DOI: 10.1039/d1sc01470f] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 03/26/2021] [Indexed: 12/14/2022] Open
Abstract
Totally different functionalization and construction as two fundamental synthetic protocols have long been applied to furnish azaarene variants. Here, a novel radical-based functionalization-oriented construction strategy by exploiting the electronic properties of azaarenes and the high reactivity of radicals is developed. Under a photoredox catalysis platform, the robust ability of such an artful combination of functionalization with construction is disclosed in the synthesis of valuable 3-azaarene-substituted densely functionalized pyrroles. In addition to the ability to use the readily accessible feedstocks, the high synthetic efficiency and the good functional group tolerance, the substrate scope is broad (81 examples) resulting from the capability to flexibly replace the types of azaarenes and other substituents. Control experiments and density functional theory (DFT) calculations elucidate the plausible mechanism involving the reaction pathways and the important role of NaH2PO4 as an additive in the reaction.
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Affiliation(s)
- Weigao Hu
- International Scientific and Technological Cooperation Base of Chiral Chemistry, Henan University Kaifeng Henan 475004 P. R. China
| | - Qiangqiang Zhan
- International Scientific and Technological Cooperation Base of Chiral Chemistry, Henan University Kaifeng Henan 475004 P. R. China
- College of Biological, Chemical Sciences and Engineering, Jiaxing University Jiaxing Zhejiang P. R. China 314001
| | - Hongwei Zhou
- College of Biological, Chemical Sciences and Engineering, Jiaxing University Jiaxing Zhejiang P. R. China 314001
| | - Shanshan Cao
- School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 P. R. China
| | - Zhiyong Jiang
- International Scientific and Technological Cooperation Base of Chiral Chemistry, Henan University Kaifeng Henan 475004 P. R. China
- School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 P. R. China
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10
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Bag D, Sawant SD. Heteroarene-tethered Functionalized Alkyne Metamorphosis. Chemistry 2021; 27:1165-1218. [PMID: 32603015 DOI: 10.1002/chem.202002154] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Indexed: 12/11/2022]
Abstract
Heteroarene-tethered functionalized alkynes are multipotent synthons in organic chemistry. This detailed Review described herein offers a thorough discussion of the metamorphosis of heteroarene-tethered functionalized alkynes, an area which has earned much attention over the past decade in the straightforward synthesis of architecturally complex heterocyclic scaffolds in atom and step economic manner. Depending upon the variety of functionalized alkynes, this Review is divided into multiple sections. Amongst the vast array of synthetic transformations covered, dearomatizing spirocyclizations and cascade spirocyclization/rearrangement are of great interest. Synthetic transformations involving the heteroarene-tethered functionalized alkynes with scope, challenges, limitations, mechanism, their application in the total synthesis of natural products and future perceptions are surveyed.
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Affiliation(s)
- Debojyoti Bag
- Laboratory 212, Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine Jammu, Canal Road, Jammu, Jammu and Kashmir, 180001, India
| | - Sanghapal D Sawant
- Laboratory 212, Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine Jammu, Canal Road, Jammu, Jammu and Kashmir, 180001, India
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11
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Hou X, Zhou S, Li Y, Guo M, Zhao W, Tang X, Wang G. Synthesis of Indolizines from Pyridinium Salts and Ethyl Bromodifluoroacetate. Org Lett 2020; 22:9313-9318. [DOI: 10.1021/acs.orglett.0c03540] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xiaoya Hou
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Sen Zhou
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Yuli Li
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Minjie Guo
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Wentao Zhao
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Xiangyang Tang
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Guangwei Wang
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
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12
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Lu CJ, Yu X, Chen YT, Song QB, Wang H. Indolizine synthesis via copper-catalyzed cyclization of gem-difluoroalkenes and 2-(pyridin-2-yl)acetate derivatives. Org Chem Front 2020. [DOI: 10.1039/d0qo00553c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A novel and versatile approach to construct substituted indolizines through copper-catalyzed coupling cyclization of 2-(pyridin-2-yl)acetate with gem-difluoroalkenes has been developed.
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Affiliation(s)
- Chuan-Jun Lu
- College of Chemistry and Chemical Engineering
- Qingdao University
- China
- College of Chemical Engineering
- Zhejiang University of Technology
| | - Xin Yu
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Yu-Ting Chen
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Qing-Bao Song
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Hong Wang
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
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13
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Paluru DK, Mahesh S, Ahmad F, Vijaya Anand R. A Cascade Synthesis of Hetero‐arylated Triarylmethanes Through a Double 5‐
endo
‐dig Cyclization Sequence. Chem Asian J 2019; 14:4688-4695. [DOI: 10.1002/asia.201900960] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 09/03/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Dilip K. Paluru
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO) Punjab- 140306 India
| | - Sriram Mahesh
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO) Punjab- 140306 India
| | - Feroz Ahmad
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO) Punjab- 140306 India
| | - Ramasamy Vijaya Anand
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO) Punjab- 140306 India
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14
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Pathipati SR, van der Werf A, Selander N. Diastereoselective Synthesis of Polycyclic Indolizines with 2-(2-Enynyl)pyridines and Enamines. Org Lett 2018; 20:3691-3694. [DOI: 10.1021/acs.orglett.8b01498] [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)
- Stalin R. Pathipati
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Angela van der Werf
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Nicklas Selander
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
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15
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Mahesh S, Paluru DK, Ahmad F, Patil S, Kant G, Anand RV. Synthesis of Indolizine-Containing Diaryl- and Triarylmethanes through a Cu-Catalyzed Domino Cyclization of 2-(2-Enynyl)pyridines. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700419] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sriram Mahesh
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Dilip K. Paluru
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Feroz Ahmad
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Swati Patil
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Guddi Kant
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
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16
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Mahesh S, Anand RV. Cu-Catalyzed Hydrophosphonylation of 2-(2-Enynyl)pyridines: Easy Access to Indolizine-Containing Diarylmethylphosphonates. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700146] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Sriram Mahesh
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City 140306 S. A. S. Nagar, Manauli (PO) Punjab India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City 140306 S. A. S. Nagar, Manauli (PO) Punjab India
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17
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Meazza M, Leth LA, Erickson JD, Jørgensen KA. Indium(III)-catalyzed Aza-Conia-Ene Reaction for the Synthesis of Indolizines. Chemistry 2017; 23:7905-7909. [PMID: 28444826 DOI: 10.1002/chem.201701820] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Indexed: 01/03/2023]
Abstract
A new indium(III)-catalyzed reaction for the synthesis of a series of indolizine scaffolds has been developed. This methodology was highly efficient, allowing a low catalyst loading of 2 mol % (down to 0.5 mol %) and rendering the products in high yields through a 5-exo-dig aza-Conia-ene reaction. Furthermore, the possibility of incorporating an electrophile into the generated pyrrolidone ring in a one-pot synergistic fashion was demonstrated. Finally, based on experimental observations, a mechanism proposal was outlined.
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Affiliation(s)
- Marta Meazza
- Department of Chemistry, Aarhus University, 8000, Aarhus C, Denmark
| | - Lars A Leth
- Department of Chemistry, Aarhus University, 8000, Aarhus C, Denmark
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18
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Wu X, Li X, Yang C, Li B, Chen S. Copper-Catalyzed Multicomponent Amination/Alkynylative Cycloisomerization Cascade: Facile Access to Ferrocene-Containing Indolizine Derivatives. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700081] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Xinxing Wu
- Inner Mongolia Key Laboratory of Fine Organic Synthesis; Department of Chemistry and Chemical Engineering; Inner Mongolia University; Hohhot 010021 People's Republic of China
| | - Xiaojie Li
- Inner Mongolia Key Laboratory of Fine Organic Synthesis; Department of Chemistry and Chemical Engineering; Inner Mongolia University; Hohhot 010021 People's Republic of China
| | - Chunyan Yang
- Inner Mongolia Key Laboratory of Fine Organic Synthesis; Department of Chemistry and Chemical Engineering; Inner Mongolia University; Hohhot 010021 People's Republic of China
| | - Baoguo Li
- Inner Mongolia Key Laboratory of Fine Organic Synthesis; Department of Chemistry and Chemical Engineering; Inner Mongolia University; Hohhot 010021 People's Republic of China
| | - Shufeng Chen
- Inner Mongolia Key Laboratory of Fine Organic Synthesis; Department of Chemistry and Chemical Engineering; Inner Mongolia University; Hohhot 010021 People's Republic of China
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19
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Wang W, Han J, Sun J, Liu Y. CuBr-Catalyzed Aerobic Decarboxylative Cycloaddition for the Synthesis of Indolizines under Solvent-Free Conditions. J Org Chem 2017; 82:2835-2842. [DOI: 10.1021/acs.joc.6b02455] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wenhui Wang
- Jiangsu
Key Laboratory of Green Synthesis for Functional Materials, School
of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, Jiangsu P. R. China
| | - Junwen Han
- Jiangsu
Key Laboratory of Green Synthesis for Functional Materials, School
of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, Jiangsu P. R. China
| | - Jinwei Sun
- Jiangsu
Key Laboratory of Green Synthesis for Functional Materials, School
of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, Jiangsu P. R. China
- School of Environmental Science & Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, P. R. China
| | - Yun Liu
- Jiangsu
Key Laboratory of Green Synthesis for Functional Materials, School
of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, Jiangsu P. R. China
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20
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Martinez-Ariza G, Mehari BT, Pinho LAG, Foley C, Day K, Jewett JC, Hulme C. Synthesis of fluorescent heterocycles via a Knoevenagel/[4 + 1]-cycloaddition cascade using acetyl cyanide. Org Biomol Chem 2017; 15:6076-6079. [DOI: 10.1039/c7ob01239j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Acetyl cyanide is utilized to synthesize fluorescent indolizines, benzo[d]pyrrolo[2,1-b]thiazoles, and pyrrolo[1,2-a]pyrazines in a single step.
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Affiliation(s)
| | | | | | - Christopher Foley
- Department of Chemistry and Biochemistry
- The University of Arizona
- Tucson
- USA
| | - Kendall Day
- Department of Pharmacology and Toxicology
- College of Pharmacy
- The University of Arizona
- Tucson
- USA
| | - John C. Jewett
- Department of Chemistry and Biochemistry
- The University of Arizona
- Tucson
- USA
| | - Christopher Hulme
- Department of Pharmacology and Toxicology
- College of Pharmacy
- The University of Arizona
- Tucson
- USA
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21
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Chen JB, Jia YX. Recent progress in transition-metal-catalyzed enantioselective indole functionalizations. Org Biomol Chem 2017; 15:3550-3567. [DOI: 10.1039/c7ob00413c] [Citation(s) in RCA: 189] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Recent progress on the transition-metal-catalyzed enantioselective functionalization reaction of indoles is reviewed, which is mainly focused on asymmetric indole alkylations, arylations, cycloaddition reactions, and other reactions.
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Affiliation(s)
- Jing-Biao Chen
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Yi-Xia Jia
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
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22
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Reddy NNK, Donthiri RR, Ravi C, Adimurthy S. Iodine-catalyzed [3+2] cyclization of 2-pyridylesters and chalcones: metal-free approach for the synthesis of substituted indolizines. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.05.083] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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23
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Oh KH, Kim SM, Park SY, Park JK. Base-Controlled Cu-Catalyzed Tandem Cyclization/Alkynylation for the Synthesis of Indolizines. Org Lett 2016; 18:2204-7. [DOI: 10.1021/acs.orglett.6b00821] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kyung Hwan Oh
- Department of Chemistry and
Chemistry Institute of Functional Materials, Pusan National University, Busan 609-735, Korea
| | - Seong Min Kim
- Department of Chemistry and
Chemistry Institute of Functional Materials, Pusan National University, Busan 609-735, Korea
| | - Sun Young Park
- Department of Chemistry and
Chemistry Institute of Functional Materials, Pusan National University, Busan 609-735, Korea
| | - Jin Kyoon Park
- Department of Chemistry and
Chemistry Institute of Functional Materials, Pusan National University, Busan 609-735, Korea
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24
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Investigation of the Pyridinium Ylide--Alkyne Cycloaddition as a Fluorogenic Coupling Reaction. Molecules 2016; 21:332. [PMID: 26978335 PMCID: PMC6273055 DOI: 10.3390/molecules21030332] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 03/03/2016] [Accepted: 03/04/2016] [Indexed: 11/17/2022] Open
Abstract
The cycloaddition of pyridinium ylides with alkynes was investigated under mild conditions. A series of 13 pyridinium salts was prepared by alkylation of 4-substituted pyridines. Their reactivity with propiolic ester or amide in various reaction conditions (different temperatures, solvents, added bases) was studied, and 11 indolizines, with three points of structural variation, were, thus, isolated and characterized. The highest yields were obtained when electron-withdrawing groups were present on both the pyridinium ylide, generated in situ from the corresponding pyridinium salt, and the alkyne (X, Z = ester, amide, CN, carbonyl, etc.). Electron-withdrawing substituents, lowering the acid dissociation constant (pKa) of the pyridinium salts, allow the cycloaddition to proceed at pH 7.5 in aqueous buffers at room temperature.
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25
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Gu J, Cai C. Synthesis of substituted indolizines via radical oxidative decarboxylative annulation of 2-(pyridin-2-yl)acetate derivatives with α,β-unsaturated carboxylic acids. Org Biomol Chem 2016; 14:9966-9969. [DOI: 10.1039/c6ob01902a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A copper mediated radical oxidative annulation of 2-(pyridin-2-yl)acetate derivatives with α,β-unsaturated carboxylic acids is developed.
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Affiliation(s)
- Jian Gu
- Chemical Engineering College
- Nanjing University of Science and Technology
- Nanjing 210094
- People's Republic of China
| | - Chun Cai
- Chemical Engineering College
- Nanjing University of Science and Technology
- Nanjing 210094
- People's Republic of China
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26
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Bagle PN, Mane MV, Vanka K, Shinde DR, Shaikh SR, Gonnade RG, Patil NT. Au(i)/Ag(i) co-operative catalysis: interception of Ag-bound carbocations with α-gold(i) enals in the imino-alkyne cyclizations with N-allenamides. Chem Commun (Camb) 2016; 52:14462-14465. [DOI: 10.1039/c6cc08385d] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A co-operative Au/Ag catalyst system has been developed to utilize N-allenamides as nucleophilic enal equivalents for the interceptive capturing of incipient carbocations generated through π-acid-triggered imino-alkyne cyclization.
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Affiliation(s)
- Pradip N. Bagle
- Division of Organic Chemistry
- CSIR – National Chemical Laboratory
- Pune – 411 008
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Manoj V. Mane
- Academy of Scientific and Innovative Research (AcSIR)
- New Delhi – 110 025
- India
- Division of Physical Chemistry
- CSIR – National Chemical Laboratory
| | - K. Vanka
- Academy of Scientific and Innovative Research (AcSIR)
- New Delhi – 110 025
- India
- Division of Physical Chemistry
- CSIR – National Chemical Laboratory
| | - Dinesh R. Shinde
- Academy of Scientific and Innovative Research (AcSIR)
- New Delhi – 110 025
- India
- Central NMR Facility
- CSIR – National Chemical Laboratory
| | - Samir R. Shaikh
- Academy of Scientific and Innovative Research (AcSIR)
- New Delhi – 110 025
- India
- Center for Materials Characterization
- CSIR – National Chemical Laboratory
| | - Rajesh G. Gonnade
- Academy of Scientific and Innovative Research (AcSIR)
- New Delhi – 110 025
- India
- Center for Materials Characterization
- CSIR – National Chemical Laboratory
| | - Nitin T. Patil
- Division of Organic Chemistry
- CSIR – National Chemical Laboratory
- Pune – 411 008
- India
- Academy of Scientific and Innovative Research (AcSIR)
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27
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Sadowski B, Klajn J, Gryko DT. Recent advances in the synthesis of indolizines and their π-expanded analogues. Org Biomol Chem 2016; 14:7804-28. [DOI: 10.1039/c6ob00985a] [Citation(s) in RCA: 132] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Synthesis of indolizines developed during the last decade is reviewed, with special emphasis given to densely functionalized architectures, breakthrough strategies, compounds bearing electron-donating and electron-withdrawing substituents and π-expanded systems.
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Affiliation(s)
- Bartłomiej Sadowski
- Institute of Organic Chemistry of the Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Jan Klajn
- Institute of Organic Chemistry of the Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Daniel T. Gryko
- Institute of Organic Chemistry of the Polish Academy of Sciences
- 01-224 Warsaw
- Poland
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28
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Hao W, Wang H, Ye Q, Zhang WX, Xi Z. Cyclopentadiene-Phosphine/Palladium-Catalyzed Synthesis of Indolizines from Pyrrole and 1,4-Dibromo-1,3-butadienes. Org Lett 2015; 17:5674-7. [DOI: 10.1021/acs.orglett.5b02959] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Wei Hao
- Beijing National Laboratory
for Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry
and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Han Wang
- Beijing National Laboratory
for Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry
and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Qingyu Ye
- Beijing National Laboratory
for Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry
and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Wen-Xiong Zhang
- Beijing National Laboratory
for Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry
and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Zhenfeng Xi
- Beijing National Laboratory
for Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry
and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
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29
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Xu T, Alper H. Synthesis of Indolizine Derivatives by Pd-Catalyzed Oxidative Carbonylation. Org Lett 2015; 17:4526-9. [DOI: 10.1021/acs.orglett.5b02220] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tongyu Xu
- Centre for Catalysis Research
and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, Canada, K1N
6N5
| | - Howard Alper
- Centre for Catalysis Research
and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, Canada, K1N
6N5
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30
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Liu RR, Hong JJ, Lu CJ, Xu M, Gao JR, Jia YX. Indolizine Synthesis via Oxidative Cross-Coupling/Cyclization of Alkenes and 2-(Pyridin-2-yl)acetate Derivatives. Org Lett 2015; 17:3050-3. [DOI: 10.1021/acs.orglett.5b01334] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ren-Rong Liu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jian-Jun Hong
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Chuan-Jun Lu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Meng Xu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jian-Rong Gao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yi-Xia Jia
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
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31
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Brioche J, Meyer C, Cossy J. Synthesis of 2-Aminoindolizines by 1,3-Dipolar Cycloaddition of Pyridinium Ylides with Electron-Deficient Ynamides. Org Lett 2015; 17:2800-3. [DOI: 10.1021/acs.orglett.5b01205] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Julien Brioche
- Laboratoire de Chimie Organique,
Institute of Chemistry, Biology and Innovation (CBI), ESPCI ParisTech,
CNRS (UMR8231), PSL Research University, 10 rue Vauquelin, Paris 75231 Cedex 05, France
| | - Christophe Meyer
- Laboratoire de Chimie Organique,
Institute of Chemistry, Biology and Innovation (CBI), ESPCI ParisTech,
CNRS (UMR8231), PSL Research University, 10 rue Vauquelin, Paris 75231 Cedex 05, France
| | - Janine Cossy
- Laboratoire de Chimie Organique,
Institute of Chemistry, Biology and Innovation (CBI), ESPCI ParisTech,
CNRS (UMR8231), PSL Research University, 10 rue Vauquelin, Paris 75231 Cedex 05, France
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32
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Liu RR, Lu CJ, Zhang MD, Gao JR, Jia YX. Palladium-Catalyzed Three-Component Cascade Reaction: Facial Access to Densely Functionalized Indolizines. Chemistry 2015; 21:7057-60. [DOI: 10.1002/chem.201500569] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Indexed: 11/10/2022]
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