1
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4-Dimethylaminopyridine-catalyzed [3 + 3] spiroannulation reactions of isatin-derived Morita-Baylis-Hillman carbonates with indoline-2-thiones. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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2
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Suresh A, Lal S, Namboothiri INN. Regio- and stereoselective synthesis of functionalized and fused heterocycles from Morita-Baylis-Hillman adducts of dicyclopentadienone. Org Biomol Chem 2022; 20:2271-2281. [PMID: 35234778 DOI: 10.1039/d1ob02505h] [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
An efficient protocol for the Morita-Baylis-Hillman (MBH) reaction of dicyclopentadienone using CTAB has been developed. The MBH adduct was subsequently transformed to its acetate and bromide derivatives. The 1,3-bielectrophilic character of the MBH acetate and bromide was further explored with various 1,3-binucleophiles to construct various oxa-, thia- and aza-heterocycles. These reactions proceed through a cascade double Michael addition of 1,3-binucleophiles to the MBH acetate/bromide under basic conditions. Amenability of these reactions to scale-up and applications of the products in the synthesis of cyclopentenone-fused chromenones and thiopyranoindoles have been demonstrated.
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Affiliation(s)
- Alati Suresh
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400 076, India.
| | - Sohan Lal
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400 076, India.
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3
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Li J, Zhao Q, Gou C, Li Q, Leng H, Huang Q, Liu Y. Construction of Indole‐Fused Heterocycles Starting from 2‐Thioxoindolines, Iminoindolines, and Their Derivatives. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100714] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jun‐Long Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University Chengdu 610106 People's Republic of China
| | - Qian Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources Chengdu University of Traditional Chinese Medicine Chengdu 611137 People's Republic of China
| | - Chuan Gou
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University Chengdu 610106 People's Republic of China
| | - Qing‐Zhu Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University Chengdu 610106 People's Republic of China
| | - Hai‐Jun Leng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University Chengdu 610106 People's Republic of China
- State Key Laboratory of Southwestern Chinese Medicine Resources Chengdu University of Traditional Chinese Medicine Chengdu 611137 People's Republic of China
| | - Qian‐Wei Huang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University Chengdu 610106 People's Republic of China
| | - Yue Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University Chengdu 610106 People's Republic of China
- State Key Laboratory of Southwestern Chinese Medicine Resources Chengdu University of Traditional Chinese Medicine Chengdu 611137 People's Republic of China
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4
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Wang W, Bao X, Wei S, Nawaz S, Qu J, Wang B. Asymmetric sequential annulation/aldol process of 4-isothiocyanato pyrazolones and allenones: access to novel spiro[pyrrole-pyrazolones] and spiro[thiopyranopyrrole-pyrazolones]. Chem Commun (Camb) 2021; 57:363-366. [PMID: 33319884 DOI: 10.1039/d0cc07113g] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A catalytic asymmetric sequential annulation/aldol reaction of 4-isothiocyanato pyrazolones and allenyl ketones has been developed, which furnished a series of spiro[pyrrole-pyrazolone] heterocycles and structurally novel spiro[thiopyranopyrrole-pyrazolone] derivatives in good yields with high to excellent enantioselectivities. Notably, parallel resolution of racemic spiro[pyrrole-pyrazolones] was achieved by a catalyst-controlled asymmetric intramolecular vinylogous aldol process. Structure diversity of the product was further enhanced by ready transformations.
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Affiliation(s)
- Wenyao Wang
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People's Republic of China.
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5
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Basu P, Hazra C, Baiju TV, Namboothiri INN. Synthesis of tetrahydrothiopyrano[2,3-b]indoles via [3+3] annulation of nitroallylic acetates with indoline-2-thiones. NEW J CHEM 2020. [DOI: 10.1039/c9nj04754a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
[3+3] annulation of 1,3-binucleophilic indolin-2-thione with 1,3-bielectrophilic nitroallylic acetate via an SN2-reaction-6-endo-trig cyclization takes place with high regio- and stereoselectivity to afford tetrahydrothiopyranoindoles.
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Affiliation(s)
- Pallabita Basu
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400 076
- India
| | - Chiranjit Hazra
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400 076
- India
| | - Thekke V. Baiju
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400 076
- India
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6
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Hojo R, Short S, Jha M. Synthesis of 1,2-Fused Tricyclic Indoles via Cu-/Base-Mediated Hydroamination of Alkynes. J Org Chem 2019; 84:16095-16104. [DOI: 10.1021/acs.joc.9b02591] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Ryoga Hojo
- Department of Biology and Chemistry, Nipissing University, North Bay, Ontario P1B 8L7, Canada
| | - Spencer Short
- Department of Biology and Chemistry, Nipissing University, North Bay, Ontario P1B 8L7, Canada
| | - Mukund Jha
- Department of Biology and Chemistry, Nipissing University, North Bay, Ontario P1B 8L7, Canada
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7
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Qiao J, Jia X, Li P, Liu X, Zhao J, Zhou Y, Wang J, Liu H, Zhao F. Gold‐catalyzed Rapid Construction of Nitrogen‐containing Heterocyclic Compound Library with Scaffold Diversity and Molecular Complexity. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801494] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Jin Qiao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
| | - Xiuwen Jia
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
| | - Pinyi Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
| | - Xiaoyan Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
| | - Jingwei Zhao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
| | - Yu Zhou
- State Key Laboratory of Drug Research and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia MedicaChinese Academy of Sciences 555 Zuchongzhi Road Shanghai 201203 People's Republic of China
- University of Chinese Academy of Sciences No.19 A Yuquan Road Beijing 100049 People's Republic of China
| | - Jiang Wang
- State Key Laboratory of Drug Research and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia MedicaChinese Academy of Sciences 555 Zuchongzhi Road Shanghai 201203 People's Republic of China
- University of Chinese Academy of Sciences No.19 A Yuquan Road Beijing 100049 People's Republic of China
| | - Hong Liu
- State Key Laboratory of Drug Research and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia MedicaChinese Academy of Sciences 555 Zuchongzhi Road Shanghai 201203 People's Republic of China
- University of Chinese Academy of Sciences No.19 A Yuquan Road Beijing 100049 People's Republic of China
| | - Fei Zhao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
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8
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Rhodes S, Short S, Sharma S, Kaur R, Jha M. One-pot mild and efficient synthesis of [1,3]thiazino[3,2-a]indol-4-ones and their anti-proliferative activity. Org Biomol Chem 2019; 17:3914-3920. [DOI: 10.1039/c9ob00500e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
One-pot synthesis of [1,3]thiazino[3,2-a]indol-4-one frameworks is developed in aqueous medium and the anti-proliferative activity of the synthesized compounds is evaluated against two triple negative breast cancer cell lines.
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Affiliation(s)
- Steven Rhodes
- Department of Biology and Chemistry
- Nipissing University
- North Bay
- Canada
| | - Spencer Short
- Department of Biology and Chemistry
- Nipissing University
- North Bay
- Canada
| | - Sidhika Sharma
- Department of Biology
- University of North Georgia
- Oakwood
- USA
| | - Ramneet Kaur
- Department of Biology
- University of North Georgia
- Oakwood
- USA
| | - Mukund Jha
- Department of Biology and Chemistry
- Nipissing University
- North Bay
- Canada
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9
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Mane V, Baiju TV, Namboothiri INN. Synthesis of Functionalized Thieno[2,3- b]indoles via One-Pot Reaction of Indoline-2-thiones with Morita-Baylis-Hillman and Rauhut-Currier Adducts of Nitroalkenes. ACS OMEGA 2018; 3:17617-17628. [PMID: 31458362 PMCID: PMC6643647 DOI: 10.1021/acsomega.8b02147] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 11/07/2018] [Indexed: 06/10/2023]
Abstract
A straightforward protocol for the synthesis of functionalized thieno[2,3-b]indoles by base-mediated [3 + 2]-annulation of indoline-2-thione with Morita-Baylis-Hillman and Rauhut-Currier adducts of nitroalkenes is described. Complete regioselectivity, broad substrate scope, and mild reaction conditions make this strategy very valuable. Moreover, the thieno[2,3-b]indoles comprising functional groups such as hydrazine and ketoalkyl moieties are amenable for further synthetic elaboration.
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10
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Nosova EV, Lipunova GN, Charushin VN, Chupakhin ON. Fluorine-containing indoles: Synthesis and biological activity. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2018.05.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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11
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Saini HK, Nandwana NK, Dhiman S, Rangan K, Kumar A. Sequential Copper-Catalyzed Sonogashira Coupling, Hydroamination and Palladium-Catalyzed Intramolecular Direct Arylation: Synthesis of Azepino-Fused Isoindolinones. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701379] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hitesh Kumar Saini
- Department of Chemistry; BITS Pilani; Pilani Campus 333031 Pilani Rajasthan India
| | | | - Shiv Dhiman
- Department of Chemistry; BITS Pilani; Pilani Campus 333031 Pilani Rajasthan India
| | - Krishnan Rangan
- Department of Chemistry; BITS Pilani; Hyderabad Campus 500078 Secunderabad Telangana India
| | - Anil Kumar
- Department of Chemistry; BITS Pilani; Pilani Campus 333031 Pilani Rajasthan India
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12
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Dhiman S, Rhodes S, Kumar D, Kumar A, Jha M. Copper-Catalyzed Tandem Imine Formation, Sonogashira Coupling and Intramolecular Hydroamination: A Facile Synthesis of 3-Aryl-γ−carbolines. ChemistrySelect 2017. [DOI: 10.1002/slct.201702025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Shiv Dhiman
- Department of Biology and Chemistry; Nipissing University; North Bay, ON P1B 8 L7 Canada, Fax: +1-705-4741947, Tel: +1-705-4743450 ex 4814
- Department of Chemistry; Birla Institute of Technology and Science, Pilani; Pilani 333031 India, Tel: +91-1596-515663, Fax: +91-1596-244183
| | - Steven Rhodes
- Department of Biology and Chemistry; Nipissing University; North Bay, ON P1B 8 L7 Canada, Fax: +1-705-4741947, Tel: +1-705-4743450 ex 4814
| | - Dalip Kumar
- Department of Chemistry; Birla Institute of Technology and Science, Pilani; Pilani 333031 India, Tel: +91-1596-515663, Fax: +91-1596-244183
| | - Anil Kumar
- Department of Chemistry; Birla Institute of Technology and Science, Pilani; Pilani 333031 India, Tel: +91-1596-515663, Fax: +91-1596-244183
| | - Mukund Jha
- Department of Biology and Chemistry; Nipissing University; North Bay, ON P1B 8 L7 Canada, Fax: +1-705-4741947, Tel: +1-705-4743450 ex 4814
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13
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Jha M, Dhiman S, Cameron TS, Kumar D, Kumar A. Au-Catalyzed Synthesis of Thiopyrano[2,3-b]indoles Featuring Tandem Rearrangement and Hydroarylation. Org Lett 2017; 19:2038-2041. [PMID: 28378595 DOI: 10.1021/acs.orglett.7b00617] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Gold(III)-catalyzed synthesis of 14-π electron heteroaromatic thiopyrano[2,3-b]indole is reported using conjugated enyne tethered indole sulfides, featuring skeletal rearrangement conjoined with intramolecular hydroarylation (via C3-H functionalization of the indole core) and oxidative aromatization. Subsequent Pd-catalyzed C-C coupling resulted in a 16-π electron heteroaromatic isothiochromeno[1,8,7-bcd]indole.
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Affiliation(s)
- Mukund Jha
- Department of Biology and Chemistry, Nipissing University , North Bay, ON P1B 8L7, Canada
| | - Shiv Dhiman
- Department of Biology and Chemistry, Nipissing University , North Bay, ON P1B 8L7, Canada.,Department of Chemistry, Birla Institute of Technology and Science , Pilani, Pilani 333031, India
| | - T Stanley Cameron
- Department of Chemistry, Dalhousie University , Halifax, NS B3H 4J3, Canada
| | - Dalip Kumar
- Department of Chemistry, Birla Institute of Technology and Science , Pilani, Pilani 333031, India
| | - Anil Kumar
- Department of Chemistry, Birla Institute of Technology and Science , Pilani, Pilani 333031, India
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14
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Ni C, Zhang Y, Hou Y, Tong X. Access to thiopyrano[2,3-b]indole via tertiary amine-catalyzed formal (3+3) annulations of β′-acetoxy allenoates with indoline-2-thiones. Chem Commun (Camb) 2017; 53:2567-2570. [DOI: 10.1039/c6cc09788j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Amine-catalyzed formal (3+3) annulations of β′-acetoxy allenoates with indoline-2-thiones are described, which provide facile access to thiopyrano[2,3-b]indole.
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Affiliation(s)
- Chunjie Ni
- College of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Yuwen Zhang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- School of Petrochemical Engineering, Changzhou University
- Changzhou 213164
- China
| | - Yading Hou
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- School of Petrochemical Engineering, Changzhou University
- Changzhou 213164
- China
| | - Xiaofeng Tong
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- School of Petrochemical Engineering, Changzhou University
- Changzhou 213164
- China
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