1
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Xu X, Zhong L, Feng H, Van der Eycken EV. Application of Metal-Free Dearomatization Reaction as a Sustainable Strategy to Direct Access Complex Cyclic Compounds. CHEM REC 2023; 23:e202300101. [PMID: 37132130 DOI: 10.1002/tcr.202300101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/17/2023] [Indexed: 05/04/2023]
Abstract
The highly efficient construction of complicated heterocyclic frameworks in an atom- and step-economic manner is still one of the cores of synthetic chemistry. Dearomatization reactions show the unique advantage for the construction of functionalized heterocycles and have attracted widespread attention over the past two decades. The metal-free approach has proved to be a green and sustainable paradigm for the synthesis of spirocyclic, polycyclic and heterocyclic scaffolds, which are widely present in natural products and bioactive molecules. In this review, the advances in the recent six years (2017-2023) in metal-free dearomatization reactions are highlighted. Emphasis is placed on developments in the field of organo-catalyzed dearomatization reactions, oxidative dearomatization reactions, Brønsted acid- or base-promoted dearomatization reactions, photoredox-catalyzed dearomatization reactions, and electrochemical oxidation dearomatization reactions.
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Affiliation(s)
- Xianjun Xu
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, Leuven, 3001, Belgium
| | - Ling Zhong
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China
| | - Huangdi Feng
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China
- Shanghai Frontiers Science Research Center for Druggability of Cardiovascular Noncoding RNA, Shanghai University of Engineering Science, Shanghai, 201620, China
| | - Erik V Van der Eycken
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, Leuven, 3001, Belgium
- Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow, 117198, Russia
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2
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Starosotnikov AM, Bastrakov MA. Heterocycles
via
Dearomatization Reactions. HETEROCYCLES 2022. [DOI: 10.1002/9783527832002.ch2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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3
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Shen LW, Zhang YP, You Y, Zhao JQ, Wang ZH, Yuan WC. Inverse Electron-Demand Aza-Diels-Alder Reaction of α,β-Unsaturated Thioesters with In Situ-Generated 1,2-Diaza-1,3-dienes for the Synthesis of 1,3,4-Thiadiazines. J Org Chem 2022; 87:4232-4240. [PMID: 35212520 DOI: 10.1021/acs.joc.1c03072] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A highly regioselective inverse electron-demand aza-Diels-Alder reaction of α,β-unsaturated thioesters with 1,2-diaza-1,3-dienes generated in situ from α-halogeno hydrazones was developed. With α,β-unsaturated thioesters as C═S dienophiles, the developed protocol enables the formation of diverse 3,6-dihydro-2H-1,3,4-thiadiazine derivatives in excellent yields. In the presence of lithium aluminum hydride, 3,6-dihydro-2H-1,3,4-thiadiazine derivatives could be further transformed into 5,6-dihydro-4H-1,3,4-thiadiazines in good yields.
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Affiliation(s)
- Li-Wen Shen
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China.,Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan-Ping Zhang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yong You
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Jian-Qiang Zhao
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Zhen-Hua Wang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Wei-Cheng Yuan
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
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4
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Aza-Diels-Alder reaction of both electron-deficient azoalkenes with electron-deficient 3-phencaylideneoxindoles and 3-aryliminooxindol-2-ones. GREEN SYNTHESIS AND CATALYSIS 2021. [DOI: 10.1016/j.gresc.2021.08.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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5
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Shen LW, Li TT, You Y, Zhao JQ, Wang ZH, Yuan WC. Inverse Electron-Demand Aza-Diels-Alder Reaction of Cyclic Enamides with 1,2-Diaza-1,3-dienes in Situ Generated from α-Halogeno Hydrazones: Access to Fused Polycyclic Tetrahydropyridazine Derivatives. J Org Chem 2021; 86:11472-11481. [PMID: 34343003 DOI: 10.1021/acs.joc.1c00993] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient inverse electron-demand aza-Diels-Alder reaction of cyclic enamides and 1,2-diaza-1,3-dienes, which could be readily formed in situ from α-halogeno hydrazones and a base, has been successfully developed. With the developed approach, a wide range of fused polycyclic tetrahydropyridazines were smoothly obtained in up to 99% yield under benign reaction conditions. This reaction concept was also extended to acyclic enamide substrates for accessing 1,4,5,6-tetrahydropyridazines. A gram-scale experiment and further derivatizations of the polycyclic tetrahydropyridazine products were also conducted to verify the practicability of the methodology.
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Affiliation(s)
- Li-Wen Shen
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China.,Institute for Advanced Study, Chengdu University, Chengdu 610106, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ting-Ting Li
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China.,Institute for Advanced Study, Chengdu University, Chengdu 610106, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yong You
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Jian-Qiang Zhao
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Zhen-Hua Wang
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Wei-Cheng Yuan
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
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6
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Nishi T, Mishima N, Kato H, Yamada K. Syntheses of Heterocycle-2,3-Fused Indoline and Azaindoline Derivatives. Synlett 2021. [DOI: 10.1055/s-0037-1610771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
AbstractWe describe a practical method for synthesizing heterocycle-2,3-fused indoline or azaindoline derivatives through haloetherification and cyclization. We applied this method in syntheses of six- to eight-membered heterocycle-2,3-fused indoline and azaindoline derivatives. These derivatives, which contain sp3-hybridized carbons, might be useful as new scaffolds in medicinal chemistry.
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7
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Ye R, Sun J, Han Y, Yan CG. Molecular diversity of TEMPO-mediated cycloaddition of ketohydrazones and 3-phenacylideneoxindoles. NEW J CHEM 2021. [DOI: 10.1039/d0nj06036d] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This reaction selectively proceeded via aza-Diels–Alder reaction, [3+2] cycloaddition and ring-opening of oxindole to give diverse spirooxindoles and polysubstituted pyrazoles.
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Affiliation(s)
- Rong Ye
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- People's Republic of China
| | - Jing Sun
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- People's Republic of China
| | - Ying Han
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- People's Republic of China
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- People's Republic of China
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8
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Zhang RY, Xu MM, Li HY, Xu XP, Ji SJ. Cascade reaction involving intramolecular oxygen-migration: Efficient synthesis of 3-allylidene-indolin-2-one compounds under metal-free conditions. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.03.070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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9
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Ciccolini C, Mari G, Gatti FG, Gatti G, Giorgi G, Mantellini F, Favi G. Synthesis of Polycyclic Fused Indoline Scaffolds through a Substrate-Guided Reactivity Switch. J Org Chem 2020; 85:11409-11425. [PMID: 32786612 PMCID: PMC8010796 DOI: 10.1021/acs.joc.0c01489] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
![]()
Zn(II)-catalyzed
divergent synthesis of functionalized polycyclic
indolines through formal [3 + 2] and [4 + 2] cycloadditions of indoles
with 1,2-diaza-1,3-dienes (DDs) is reported. The nature and type of
substituents of substrates are found to act as a chemical switch to
trigger two distinct reaction pathways and to obtain two different
types of products upon the influence of the same catalyst. The mechanism
of both [4 + 2] and [3 + 2] cycloadditions was investigated and fully
rationalized by density functional theory (DFT) calculations.
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Affiliation(s)
- Cecilia Ciccolini
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies, University of Urbino "Carlo Bo", Via I Maggetti 24, 61029 Urbino, Italy
| | - Giacomo Mari
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies, University of Urbino "Carlo Bo", Via I Maggetti 24, 61029 Urbino, Italy
| | - Francesco G Gatti
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Giuseppe Gatti
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies, University of Urbino "Carlo Bo", Via I Maggetti 24, 61029 Urbino, Italy
| | - Gianluca Giorgi
- Department of Biotechnologies, Chemistry & Pharmacy, University of Siena, Via A. Moro 2, 53100 Siena, Italy
| | - Fabio Mantellini
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies, University of Urbino "Carlo Bo", Via I Maggetti 24, 61029 Urbino, Italy
| | - Gianfranco Favi
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies, University of Urbino "Carlo Bo", Via I Maggetti 24, 61029 Urbino, Italy
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10
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Duan L, Wang X, Gu Y, Hou Y, Gong P. Regioselective construction of pyridazine and tetrahydrocinnoline derivatives via [4 + 2] cycloaddition–elimination with α-halogeno hydrazones and enaminones. Org Chem Front 2020. [DOI: 10.1039/d0qo00555j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Herein, we report the de novo construction of pyridazine scaffolds via a [4 + 2] cycloaddition–elimination reaction with α-halogeno hydrazones and enaminones.
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Affiliation(s)
- Liancheng Duan
- School of Pharmaceutical Engineering
- Shenyang Pharmaceutical University
- Shenyang
- China
| | - Xin Wang
- School of Pharmaceutical Engineering
- Shenyang Pharmaceutical University
- Shenyang
- China
| | - Yucheng Gu
- Syngenta Jealott's Hill International Research Center
- Berkshire RG42 6EY
- UK
| | - Yunlei Hou
- School of Pharmaceutical Engineering
- Shenyang Pharmaceutical University
- Shenyang
- China
| | - Ping Gong
- School of Pharmaceutical Engineering
- Shenyang Pharmaceutical University
- Shenyang
- China
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11
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Guo YC, Song XD, Deng W, Rao W, Xu H, Shen ZL. An efficient synthesis of 4,5-diaryl-3,4-dihydropyrimidin-2(1H)-one via a cesium carbonate-promoted direct condensation of 1-aryl-2-propanone with 1,1′-(arylmethylene)diurea. RSC Adv 2020; 10:30062-30068. [PMID: 35518255 PMCID: PMC9056278 DOI: 10.1039/d0ra05480a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/02/2020] [Indexed: 12/27/2022] Open
Abstract
An efficient method for the synthesis of 4,5-diaryl-3,4-dihydropyrimidin-2(1H)-one by using 1,1′-(arylmethylene)diurea and 1-aryl-2-propanone as substrates was developed. The reactions proceeded efficiently in the presence of Cs2CO3 to give the desired products in moderate to good yields with wide substrate scope and good functional group tolerance, serving as an attractive alternative or complement to the previously reported methods for the facile assembly of biologically and pharmaceutically active 3,4-dihydropyrimidin-2(1H)-ones. A Cs2CO3-promoted efficient method for the synthesis of 4,5-diaryl-3,4-dihydropyrimidin-2(1H)-one by using 1,1′-(arylmethylene)diurea and 1-aryl-2-propanone as substrates was developed.![]()
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Affiliation(s)
- Yi-Cong Guo
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- China
| | - Xuan-Di Song
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- China
| | - Wei Deng
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- China
| | - Weidong Rao
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Haiyan Xu
- School of Environmental and Chemical Engineering
- Jiangsu University of Science and Technology
- Zhenjiang
- China
| | - Zhi-Liang Shen
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- China
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12
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Ye R, Yan CG. Construction of Spiro[indoline-3,3′-pyridazines] and Spiro[indene-2,3′-pyridazines] via TEMPO-Mediated Oxidative Aza-Diels-Alder Reactions. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900955] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Rong Ye
- College of Chemistry & Chemical Engineering; Yangzhou University; 225002 Yangzhou China
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering; Yangzhou University; 225002 Yangzhou China
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13
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Feng X, Wu Z, Wang Q, Chen B, Rao W, Yang J, Shen Z. Cesium carbonate‐catalyzed indium insertion into alkyl iodides and their synthetic utilities in cross‐coupling reactions. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xue‐Xin Feng
- School of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
- School of PharmacyYancheng Teachers University Yancheng 224007 China
| | - Zhen Wu
- School of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
- School of PharmacyYancheng Teachers University Yancheng 224007 China
| | - Qing‐Dong Wang
- School of PharmacyYancheng Teachers University Yancheng 224007 China
| | - Bing‐Zhi Chen
- School of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
| | - Weidong Rao
- Jiangsu Key Laboratory of Biomass‐based Green Fuels and Chemicals, College of Chemical EngineeringNanjing Forestry University Nanjing 210037 China
| | - Jin‐Ming Yang
- School of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
- School of PharmacyYancheng Teachers University Yancheng 224007 China
| | - Zhi‐Liang Shen
- School of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
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14
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Cao W, Xu X, Ji S. Copper‐Catalyzed Sequential C(
sp
2
)/C(
sp
3
)−H Amination of 2‐Vinylanilines with
N
‐Fluorobenzenesulfonimide. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801710] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Wen‐Bin Cao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and TechnologySoochow University Suzhou 215123 People's Republic of China
| | - Xiao‐Ping Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and TechnologySoochow University Suzhou 215123 People's Republic of China
| | - Shun‐Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and TechnologySoochow University Suzhou 215123 People's Republic of China
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15
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Zhang LL, Cao WB, Xu XP, Ji SJ. Visible-light-induced oxidative ring expansion of indoles with amidines. Org Chem Front 2019. [DOI: 10.1039/c9qo00379g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient and mild visible-light-enabled reaction involving the oxidative ring expansion of indoles with amidines in the aqueous phase at room temperature is developed.
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Affiliation(s)
- Ling-Ling Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Wen-Bin Cao
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Xiao-Ping Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
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16
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Arunprasath D, Devi Bala B, Sekar G. Luxury of
N
‐Tosylhydrazones in Transition‐Metal‐Free Transformations. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801031] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Dhanarajan Arunprasath
- Department of ChemistryIndian Institute of Technology Madras Chennai – 600036 Tamil Nadu India
| | | | - Govindasamy Sekar
- Department of ChemistryIndian Institute of Technology Madras Chennai – 600036 Tamil Nadu India
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17
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Cao WB, Liu BB, Xu XP, Ji SJ. Cooperation of copper and dioxygen for the site-selective construction of benzo[1,5]diazocin-6(5H)-ones from indoles and enaminone analogues. Org Chem Front 2018. [DOI: 10.1039/c7qo01154g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new route for the preparation of benzo[1,5]diazocines from indoles and enaminone analogues is described.
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Affiliation(s)
- Wen-Bin Cao
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Bei-Bei Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Xiao-Ping Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
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18
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Xu MM, Cao WB, Xu XP, Ji SJ. Efficient synthesis of 2-arylquinazolin-4-amines via a copper-catalyzed diazidation and ring expansion cascade of 2-arylindoles. Chem Commun (Camb) 2018; 54:12602-12605. [DOI: 10.1039/c8cc07721e] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Copper-catalyzed synthesis of 2-arylquinazolin-4-amines from readily available 2-arylindoles and TMSN3 has been developed.
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Affiliation(s)
- Meng-Meng Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Wen-Bin Cao
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Xiao-Ping Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
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