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51
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Samala S, Singh G, Kumar R, Ampapathi RS, Kundu B. Metal-Free Decarboxylative Cyclization/Ring Expansion: Construction of Five-, Six-, and Seven-Membered Heterocycles from 2-Alkynyl Benzaldehydes and Cyclic Amino Acids. Angew Chem Int Ed Engl 2015; 54:9564-7. [DOI: 10.1002/anie.201504429] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Indexed: 11/09/2022]
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52
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Samala S, Singh G, Kumar R, Ampapathi RS, Kundu B. Metal-Free Decarboxylative Cyclization/Ring Expansion: Construction of Five-, Six-, and Seven-Membered Heterocycles from 2-Alkynyl Benzaldehydes and Cyclic Amino Acids. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504429] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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53
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Wang J, Zhu HT, Qiu YF, Niu Y, Chen S, Li YX, Liu XY, Liang YM. Facile Synthesis of Carbazoles via a Tandem Iodocyclization with 1,2-Alkyl Migration and Aromatization. Org Lett 2015; 17:3186-9. [DOI: 10.1021/acs.orglett.5b01590] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jia Wang
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Hai-Tao Zhu
- Shannxi
Key Laboratory of Phytochemistry, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Yi-Feng Qiu
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yuan Niu
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Si Chen
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Ying-Xiu Li
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xue-Yuan Liu
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yong-Min Liang
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
- State
Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical
Physics, Chinese Academy of Science, Lanzhou, 730000, P. R. China
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54
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55
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Gimeno A, Rodríguez-Gimeno A, Cuenca AB, Ramírez de Arellano C, Medio-Simón M, Asensio G. Gold(i)-catalysed cascade reactions in the synthesis of 2,3-fused indole derivatives. Chem Commun (Camb) 2015; 51:12384-7. [DOI: 10.1039/c5cc04606h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Unactivated alkenes and 1,3-unsubstituted indoles in gold(i)-catalysed hydroaminative/arylative cascade cyclizations.
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Affiliation(s)
- Ana Gimeno
- Departamento de Química Orgánica
- Universidad de Valencia
- Valencia
- Spain
| | | | - Ana B. Cuenca
- Departamento de Química Orgánica
- Universidad de Valencia
- Valencia
- Spain
| | | | | | - Gregorio Asensio
- Departamento de Química Orgánica
- Universidad de Valencia
- Valencia
- Spain
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56
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Arigela RK, Kumar R, Joshi T, Mahar R, Kundu B. Ruthenium(ii)-catalyzed C–H activation/C–N bond formation via in situ generated iminophosphorane as the directing group: construction of annulated pyridin-2(1H)-ones. RSC Adv 2014. [DOI: 10.1039/c4ra10105g] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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57
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Samala S, Pallavi P, Kumar R, Arigela RK, Singh G, Ampapathi RS, Priya A, Datta S, Patra A, Kundu B. One-Pot Synthesis of Highly Fluorescent Pyrido[1,2-a]indole Derivatives through CH/NH Activation: Photophysical Investigations and Application in Cell Imaging. Chemistry 2014; 20:14344-50. [DOI: 10.1002/chem.201404189] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Indexed: 01/09/2023]
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58
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Rathore KS, Harode M, Katukojvala S. Regioselective π-extension of indoles with rhodium enalcarbenoids – synthesis of substituted carbazoles. Org Biomol Chem 2014; 12:8641-5. [DOI: 10.1039/c4ob01693a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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59
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Arigela RK, Kumar R, Samala S, Gupta S, Kundu B. Diversity-Oriented Synthesis of Polycyclic Indoles: Brønsted or Lewis Acid Catalyzed Three-Component Reaction for the Synthesis of α-Carbolines and Pyrimidoindoles. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402633] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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60
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Shu C, Li L, Chen CB, Shen HC, Ye LW. Gold-Catalyzed 6-Exo-DigCycloisomerization: A Versatile Approach to Functionalized Phenanthrenes. Chem Asian J 2014; 9:1525-9. [DOI: 10.1002/asia.201400034] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Indexed: 12/12/2022]
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61
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Samala S, Arigela RK, Kant R, Kundu B. Diversity-oriented synthesis of ketoindoloquinoxalines and indolotriazoloquinoxalines from 1-(2-nitroaryl)-2-alkynylindoles. J Org Chem 2014; 79:2491-500. [PMID: 24571484 DOI: 10.1021/jo402783p] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A one-pot protocol for the diversity-oriented synthesis of two indole-based annulated polyheterocycles, ketoindoloquinoxalines and indolotriazoloquinoxalines, has been described. The salient features of the methodology involves either a metal/O2-catalyzed aminooxygenation or a [3 + 2] cycloaddition pathway.
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Affiliation(s)
- Srinivas Samala
- Medicinal and Process Chemistry Division and ‡Molecular and Structural Biology Division, CSIR-Central Drug Research Institute , B.S. 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226001, India
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62
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Qiu Y, Ma D, Kong W, Fu C, Ma S. Regiocontrolled 1,2-migration in cyclization of 1-(indol-2-yl)-3-alkyn-1-ols: (Ph3P)Au+vs. PtCl4. Org Chem Front 2014. [DOI: 10.1039/c3qo00006k] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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63
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Shu C, Chen CB, Chen WX, Ye LW. Flexible and Practical Synthesis of Anthracenes through Gold-Catalyzed Cyclization ofo-Alkynyldiarylmethanes. Org Lett 2013; 15:5542-5. [DOI: 10.1021/ol402713g] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Chao Shu
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| | - Cheng-Bin Chen
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| | - Wei-Xi Chen
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| | - Long-Wu Ye
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
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64
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Arigela RK, Samala S, Mahar R, Shukla SK, Kundu B. Synthesis of Triazolo Isoquinolines and Isochromenes from 2-Alkynylbenzaldehyde via Domino Reactions under Transition-Metal-Free Conditions. J Org Chem 2013; 78:10476-84. [DOI: 10.1021/jo401929q] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | | | | | | | - Bijoy Kundu
- Academy of Scientific and Innovative Research, New Delhi 110001, India
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65
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Gupta S, Koley D, Ravikumar K, Kundu B. Counter Ion Effect in Au/Ag-Catalyzed Chemoselective 6-endo-dig N- and O-Cyclizations of Enyne–Urea System: Diversity-Oriented Synthesis of Annulated Indoles. J Org Chem 2013; 78:8624-33. [DOI: 10.1021/jo4013332] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sahaj Gupta
- Medicinal and Process
Chemistry
Division, CSIR-Central Drug Research Institute, Lucknow 226001, India
| | - Dipankar Koley
- Medicinal and Process
Chemistry
Division, CSIR-Central Drug Research Institute, Lucknow 226001, India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Krishnan Ravikumar
- X-ray Crystallography Division, CSIR-Indian Institute of Chemical Technology, Tarnaka,
Hyderabad 500607, India
| | - Bijoy Kundu
- Medicinal and Process
Chemistry
Division, CSIR-Central Drug Research Institute, Lucknow 226001, India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
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