51
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Chu XQ, Zi Y, Meng H, Xu XP, Ji SJ. Synthesis of 1,4-dihydroquinoline derivatives under transition-metal-free conditions and their diverse applications. Org Biomol Chem 2014; 12:4243-51. [PMID: 24838778 DOI: 10.1039/c4ob00475b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A transition-metal-free process for the synthesis of 1,4-dihydroquinoline derivatives starting from simple enaminones with aldehydes via intermolecular cascade cyclization in a one-pot protocol is developed. This methodology affords a variety of products in moderate to good yields. Particularly, the use of the enaminone fragment in 1,4-dihydroquinoline derivatives 3 as a leaving group for further diverse applications with C-nucleophiles is proved to be feasible.
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Affiliation(s)
- Xue-Qiang Chu
- 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, 215123, People's Republic of China.
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52
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Peng B, Geerdink D, Farès C, Maulide N. Chemoselektive intermolekulare α-Arylierung von Amiden. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201402229] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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53
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Peng B, Geerdink D, Farès C, Maulide N. Chemoselective intermolecular α-arylation of amides. Angew Chem Int Ed Engl 2014; 53:5462-6. [PMID: 24740762 DOI: 10.1002/anie.201402229] [Citation(s) in RCA: 154] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Indexed: 11/10/2022]
Abstract
A new approach for the fully chemoselective α-arylation of amides is presented. By means of electrophilic amide activation, aryl groups can be regioselectively introduced α- to amides, even in the presence of esters and alkyl ketones. Mechanistic studies reveal key reaction intermediates and emphasize a remarkably subtle base effect in this transformation.
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Affiliation(s)
- Bo Peng
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr (Germany)
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54
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Reddy BVS, Swain M, Reddy SM, Yadav JS, Sridhar B. Gold-Catalyzed 5-endo-digCyclization of 2-[(2-Aminophenyl)ethynyl]phenylamine with Ketones for the Synthesis of Spiroindolone and Indolo[3,2-c]quinolone Scaffolds. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402006] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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55
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Metal-free oxidative arylphosphination of activated N-substituted-N-arylacrylamide derivatives using K2S2O8. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.01.065] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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56
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Li YM, Shen Y, Chang KJ, Yang SD. Arylnitration of alkenes by nitration/C–H functionalization cascade using AgNO3 and HOAc. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.02.043] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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57
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Susanti D, Ng LLR, Chan PWH. Silica Gel-Mediated Hydroamination/Semipinacol Rearrangement of 2-Alkylaminophenylprop-1-yn-3-ols: Synthesis of 2-Oxindoles from Alkynes and 1-(2-Aminophenyl) Ketones. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201300911] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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58
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Zheng B, Jia T, Walsh PJ. A General and Practical Palladium-Catalyzed Direct α-Arylation of Amides with Aryl Halides. Adv Synth Catal 2014; 356:165-178. [PMID: 24765060 PMCID: PMC3994175 DOI: 10.1002/adsc.201300851] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
An efficient system for the direct catalytic intermolecular α-arylation of acetamide derivatives with aryl bromides and chlorides is presented. The palladium catalyst is supported by Kwong's indole-based phosphine ligand and provides monoarylated amides in up to 95% yield. Excellent chemoselectivities (>10:1) in the mono- and diarylation with aryl bromides were achieved by careful selection of bases, solvents, and stoichiometry. Under the coupling conditions, the weakly acidic α-protons of amides (pKa up to 35) were reversibly depotonated by LiO t Bu, NaO t Bu, or NaN(SiMe3)2.
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Affiliation(s)
- Bing Zheng
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
- Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Tiezheng Jia
- Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Patrick J. Walsh
- Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
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59
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Shen T, Yuan Y, Jiao N. Metal-free nitro-carbocyclization of activated alkenes: a direct approach to synthesize oxindoles by cascade C–N and C–C bond formation. Chem Commun (Camb) 2014; 50:554-6. [DOI: 10.1039/c3cc47336h] [Citation(s) in RCA: 154] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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60
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Niu B, Xie P, Zhao W, Zhou Y, Bian Z, Pittman CU, Zhou A. Metal-free syntheses of oxindole derivatives via a benzoylation/substitution/desulfonylation/cyclization cascade. RSC Adv 2014. [DOI: 10.1039/c4ra06810f] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A benzoylation/substitution/desulfonylation/cyclization cascade reaction giving oxindole derivatives was reported.
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Affiliation(s)
- Ben Niu
- Pharmacy School
- Jiangsu University
- Zhenjiang City, China
| | - Ping Xie
- Scientific Information Research Institute
- Jiangsu University (Library)
- China
| | - Wannian Zhao
- Pharmacy School
- Jiangsu University
- Zhenjiang City, China
| | - Yang Zhou
- Pharmacy School
- Jiangsu University
- Zhenjiang City, China
| | - Zhaogang Bian
- Pharmacy School
- Jiangsu University
- Zhenjiang City, China
| | | | - Aihua Zhou
- Pharmacy School
- Jiangsu University
- Zhenjiang City, China
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61
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Luo JY, Hua HL, Chen ZS, Zhou ZZ, Yang YF, Zhou PX, He YT, Liu XY, Liang YM. Metal-free cascade radical cyclization of 1,6-enynes with aldehydes. Chem Commun (Camb) 2014; 50:1564-6. [DOI: 10.1039/c3cc48339h] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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62
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Shen T, Yuan Y, Song S, Jiao N. Iron-catalyzed aerobic difunctionalization of alkenes: a highly efficient approach to construct oxindoles by C–S and C–C bond formation. Chem Commun (Camb) 2014; 50:4115-8. [DOI: 10.1039/c4cc00401a] [Citation(s) in RCA: 131] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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63
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Li XA, Li JY, Yang B, Yang SD. Catalyst-free three-component reaction to synthesize chiral α-amino phosphine oxides. RSC Adv 2014. [DOI: 10.1039/c4ra05645k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel method for high diastereoselective syntheses of chiral α-aminophosphine oxides by a three-component reaction involve a metal-free system was performed.
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Affiliation(s)
- Xi-An Li
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000, P. R. China
| | - Jia-Yuan Li
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000, P. R. China
| | - Bin Yang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000, P. R. China
| | - Shang-Dong Yang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000, P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics
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64
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Baars H, Beyer A, Kohlhepp SV, Bolm C. Transition-metal-free synthesis of benzimidazoles mediated by KOH/DMSO. Org Lett 2013; 16:536-9. [PMID: 24364511 DOI: 10.1021/ol403414v] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Benzimidazoles are prepared by intramolecular N-arylations of amidines mediated by potassium hydroxide in DMSO at 120 °C. In this manner, diversely substituted products have been obtained in moderate to very good yields.
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Affiliation(s)
- Hannah Baars
- Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, D-52074 Aachen, Germany
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65
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Mai WP, Wang JT, Yang LR, Yuan JW, Xiao YM, Mao P, Qu LB. Silver-Catalyzed Radical Tandem Cyclization for the Synthesis of 3,4-Disubstituted Dihydroquinolin-2(1H)-ones. Org Lett 2013; 16:204-7. [DOI: 10.1021/ol403196h] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Wen-Peng Mai
- Chemistry and Chemical Engineering
School, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Ji-Tao Wang
- Chemistry and Chemical Engineering
School, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Liang-Ru Yang
- Chemistry and Chemical Engineering
School, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Jin-Wei Yuan
- Chemistry and Chemical Engineering
School, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Yong-Mei Xiao
- Chemistry and Chemical Engineering
School, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Pu Mao
- Chemistry and Chemical Engineering
School, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Ling-Bo Qu
- Chemistry and Chemical Engineering
School, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
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66
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Fu W, Xu F, Fu Y, Zhu M, Yu J, Xu C, Zou D. Synthesis of 3,3-Disubstituted Oxindoles by Visible-Light-Mediated Radical Reactions of Aryl Diazonium Salts with N-Arylacrylamides. J Org Chem 2013; 78:12202-6. [DOI: 10.1021/jo401894b] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Weijun Fu
- College
of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471022, P. R. China
| | - Fengjuan Xu
- College
of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan 450052, P. R. China
| | - Yuqin Fu
- College
of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471022, P. R. China
| | - Mei Zhu
- College
of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471022, P. R. China
| | - Jiaqi Yu
- College
of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471022, P. R. China
| | - Chen Xu
- College
of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471022, P. R. China
| | - Dapeng Zou
- College
of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan 450052, P. R. China
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67
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Zhou ZZ, Hua HL, Luo JY, Chen ZS, Zhou PX, Liu XY, Liang YM. Metal-free synthesis of 3,3-disubstituted oxindoles via 1,2-alkylarylation of activated alkenes with alcohols. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.09.058] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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68
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Sharma M, Mahar R, Shukla SK, Kant R, Chauhan PM. Potassium carbonate mediated unusual transformation of 2,3-dihydroquinazolinone via cascade reaction. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.08.095] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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69
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Grimaldi TB, Back DF, Zeni G. Potassium tert-Butoxide Promoted Annulation of 2-Alkynylphenyl Propargyl Ethers: Selective Synthesis of Benzofuran and 12H-Benzoannulene Derivatives. J Org Chem 2013; 78:11017-31. [DOI: 10.1021/jo4020062] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tamiris B. Grimaldi
- Laboratório de Síntese, Reatividade,
Avaliação Farmacológica e Toxicológica
de Organocalcogênios and ‡Laboratório de Materiais
Inorgânicos, CCNE, UFSM, Santa Maria, Rio Grande
do Sul, Brazil 97105-900
| | - Davi F. Back
- Laboratório de Síntese, Reatividade,
Avaliação Farmacológica e Toxicológica
de Organocalcogênios and ‡Laboratório de Materiais
Inorgânicos, CCNE, UFSM, Santa Maria, Rio Grande
do Sul, Brazil 97105-900
| | - Gilson Zeni
- Laboratório de Síntese, Reatividade,
Avaliação Farmacológica e Toxicológica
de Organocalcogênios and ‡Laboratório de Materiais
Inorgânicos, CCNE, UFSM, Santa Maria, Rio Grande
do Sul, Brazil 97105-900
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70
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Zhou SL, Guo LN, Wang H, Duan XH. Copper-Catalyzed Oxidative Benzylarylation of Acrylamides by Benzylic CH Bond Functionalization for the Synthesis of Oxindoles. Chemistry 2013; 19:12970-3. [DOI: 10.1002/chem.201302139] [Citation(s) in RCA: 135] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Indexed: 11/08/2022]
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71
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Wang HY, Anderson LL. Interrupted Fischer-indole intermediates via oxyarylation of alkenyl boronic acids. Org Lett 2013; 15:3362-5. [PMID: 23799801 DOI: 10.1021/ol401416r] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The oxyarylation of alkenyl boronic acids with N-arylbenzhydroxamic acids has been achieved under both copper-mediated and copper-catalyzed conditions to provide access to interrupted Fischer-indole intermediates. This transformation is believed to proceed through a copper-promoted C-O bond forming event followed by a [3,3] rearrangement. The scope of the method is described and mechanistic experiments are discussed.
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Affiliation(s)
- Heng-Yen Wang
- Department of Chemistry, University of Illinois, Chicago, Illinois 60607, USA
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72
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Matcha K, Narayan R, Antonchick AP. Metal-Free Radical Azidoarylation of Alkenes: Rapid Access to Oxindoles by Cascade CN and CC Bond-Forming Reactions. Angew Chem Int Ed Engl 2013; 52:7985-9. [DOI: 10.1002/anie.201303550] [Citation(s) in RCA: 243] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Indexed: 01/02/2023]
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73
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Matcha K, Narayan R, Antonchick AP. Metallfreie radikalische Azidoarylierung von Alkenen: schneller Zugang zu Oxindolen durch kaskadenförmige C-N- und C-C-Bindungsbildung. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303550] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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74
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Thomé I, Besson C, Kleine T, Bolm C. Base-catalyzed synthesis of substituted indazoles under mild, transition-metal-free conditions. Angew Chem Int Ed Engl 2013; 52:7509-13. [PMID: 23740864 DOI: 10.1002/anie.201300917] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 04/29/2013] [Indexed: 11/09/2022]
Abstract
Back to basics: A transition-metal-free method developed for the synthesis of indazoles involves an inexpensive catalytic system composed of a diamine and K2CO3. Various (Z)-2-bromoacetophenone tosylhydrazones were converted into indazoles at room temperature in excellent yields (see example; Ts = p-toluenesulfonyl). The yield was improved by photoisomerization with UV light when E/Z isomeric mixtures of the starting material were used.
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Affiliation(s)
- Isabelle Thomé
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52056 Aachen, Germany
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75
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Thomé I, Besson C, Kleine T, Bolm C. Base-Catalyzed Synthesis of Substituted Indazoles under Mild, Transition-Metal-Free Conditions. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201300917] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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76
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Yang LQ, Wang KB, Li CY. Synthesis of Oxindoles through the Gold-Catalyzed Oxidation ofN-Arylynamides. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300162] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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77
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Wei WT, Zhou MB, Fan JH, Liu W, Song RJ, Liu Y, Hu M, Xie P, Li JH. Synthesis of Oxindoles by Iron-Catalyzed Oxidative 1,2-Alkylarylation of Activated Alkenes with an Aryl C(sp2)H Bond and a C(sp3)H Bond Adjacent to a Heteroatom. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201210029] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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78
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Wei WT, Zhou MB, Fan JH, Liu W, Song RJ, Liu Y, Hu M, Xie P, Li JH. Synthesis of Oxindoles by Iron-Catalyzed Oxidative 1,2-Alkylarylation of Activated Alkenes with an Aryl C(sp2)H Bond and a C(sp3)H Bond Adjacent to a Heteroatom. Angew Chem Int Ed Engl 2013; 52:3638-41. [DOI: 10.1002/anie.201210029] [Citation(s) in RCA: 329] [Impact Index Per Article: 29.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2012] [Revised: 01/15/2012] [Indexed: 11/06/2022]
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79
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Li YM, Wei XH, Li XA, Yang SD. Metal-free carbonitration of alkenes using K2S2O8. Chem Commun (Camb) 2013; 49:11701-3. [DOI: 10.1039/c3cc47287f] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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80
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Wang H, Guo LN, Duan XH. Silver-catalyzed oxidative coupling/cyclization of acrylamides with 1,3-dicarbonyl compounds. Chem Commun (Camb) 2013; 49:10370-2. [DOI: 10.1039/c3cc46114a] [Citation(s) in RCA: 138] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An efficient silver-catalyzed oxidative cyclization of acrylamides with 1,3-dicarbonyl compounds is described. It proceeds through a tandem radical addition/cyclization process, in which two new C–C bonds were formed.
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Affiliation(s)
- Hua Wang
- Department of Chemistry
- School of Science and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Li-Na Guo
- Department of Chemistry
- School of Science and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Xin-Hua Duan
- Department of Chemistry
- School of Science and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi'an Jiaotong University
- Xi'an 710049
- China
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81
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Xiang SK, Tan W, Zhang DX, Tian XL, Feng C, Wang BQ, Zhao KQ, Hu P, Yang H. Synthesis of benzimidazoles by potassium tert-butoxide-promoted intermolecular cyclization reaction of 2-iodoanilines with nitriles. Org Biomol Chem 2013; 11:7271-5. [DOI: 10.1039/c3ob41479e] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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82
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Zhao D, Shen Q, Zhou YR, Li JX. KOtBu-mediated stereoselective addition of quinazolines to alkynes under mild conditions. Org Biomol Chem 2013; 11:5908-12. [DOI: 10.1039/c3ob41083h] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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83
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Mehta VP, Punji B. Recent advances in transition-metal-free direct C–C and C–heteroatom bond forming reactions. RSC Adv 2013. [DOI: 10.1039/c3ra40813b] [Citation(s) in RCA: 146] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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84
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Wu Y, Wong SM, Mao F, Chan TL, Kwong FY. Intramolecular Direct C–H Bond Arylation from Aryl Chlorides: A Transition-Metal-Free Approach for Facile Access of Phenanthridines. Org Lett 2012; 14:5306-9. [DOI: 10.1021/ol302489n] [Citation(s) in RCA: 117] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yinuo Wu
- State Key Laboratory of Chiroscience and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, and School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Shun Man Wong
- State Key Laboratory of Chiroscience and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, and School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Fei Mao
- State Key Laboratory of Chiroscience and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, and School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Tek Long Chan
- State Key Laboratory of Chiroscience and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, and School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Fuk Yee Kwong
- State Key Laboratory of Chiroscience and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, and School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
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85
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Dey C, Katayev D, Ylijoki KEO, Kündig EP. Aza-oxindole synthesis via base promoted Truce–Smiles rearrangement. Chem Commun (Camb) 2012; 48:10957-9. [DOI: 10.1039/c2cc36068c] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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