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Sun F, Miao M, Li W, Lan XB, Yu JQ, Zhang J, An Z. Electrochemical oxidative dehydrogenative annulation of 1-(2-aminophenyl)pyrroles with cleavage of ethers to synthesize pyrrolo[1,2- a]quinoxaline derivatives. Org Biomol Chem 2024; 22:472-476. [PMID: 38099809 DOI: 10.1039/d3ob01867a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
An array of pyrrolo[1,2-a]quinoxaline derivatives were achieved with moderate to good yields via the electrochemical redox reaction, which includes the functionalization of C(sp3)-H bonds and the construction of C-C and C-N bonds. In this atom economic reaction, THF was used as both a reactant and a solvent, and H2 was the sole by-product.
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Affiliation(s)
- Fengkai Sun
- College of Pharmacy, Ningxia Characteristic Traditional Chinese Medicine Modern Engineering Research Center, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
| | - Man Miao
- College of Pharmacy, Ningxia Characteristic Traditional Chinese Medicine Modern Engineering Research Center, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
| | - Wenxue Li
- College of Pharmacy, Ningxia Characteristic Traditional Chinese Medicine Modern Engineering Research Center, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
| | - Xiao-Bing Lan
- College of Pharmacy, Ningxia Characteristic Traditional Chinese Medicine Modern Engineering Research Center, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
| | - Jian-Qiang Yu
- College of Pharmacy, Ningxia Characteristic Traditional Chinese Medicine Modern Engineering Research Center, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
| | - Jian Zhang
- College of Pharmacy, Ningxia Characteristic Traditional Chinese Medicine Modern Engineering Research Center, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
- State Key Laboratory of Oncogenes and Related Genes, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhenyu An
- College of Pharmacy, Ningxia Characteristic Traditional Chinese Medicine Modern Engineering Research Center, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
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Bandyopadhyay M, Bhadra S, Pathak S, Menon AM, Chopra D, Patra S, Escorihuela J, De S, Ganguly D, Bhadra S, Bera MK. An Atom-Economic Method for 1,2,3-Triazole Derivatives via Oxidative [3 + 2] Cycloaddition Harnessing the Power of Electrochemical Oxidation and Click Chemistry. J Org Chem 2023; 88:15772-15782. [PMID: 37924324 DOI: 10.1021/acs.joc.3c01836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2023]
Abstract
An electrochemical method was developed to accomplish the reagentless synthesis of 4,5-disubstituted triazole derivatives employing secondary propargyl alcohol as C-3 synthon and sodium azide as cycloaddition counterpart. The reaction was conducted at room temperature in an undivided cell with a constant current using a pencil graphite (C) anode and stainless-steel cathode in a MeCN solvent system. The proposed reaction mechanism was convincingly established by carrying out a series of control experiments and further supported by electrochemical and density functional theory (DFT) studies.
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Affiliation(s)
- Manas Bandyopadhyay
- Department of Chemistry, Indian Institute of Engineering Science and Technology (IIEST), Shibpur, P.O. Botanic Garden, Howrah 711103, West Bengal, India
| | - Sayan Bhadra
- Department of Chemistry, Indian Institute of Engineering Science and Technology (IIEST), Shibpur, P.O. Botanic Garden, Howrah 711103, West Bengal, India
| | - Swastik Pathak
- Department of Chemistry, Indian Institute of Engineering Science and Technology (IIEST), Shibpur, P.O. Botanic Garden, Howrah 711103, West Bengal, India
| | - Anila M Menon
- Department of Chemistry, IISER Bhopal, Bhopal Bypass Road, Bhopal 462066, Madhya Pradesh India
| | - Deepak Chopra
- Department of Chemistry, IISER Bhopal, Bhopal Bypass Road, Bhopal 462066, Madhya Pradesh India
| | - Snehangshu Patra
- Sustainable Hydrogen for Valuable Applications (SHYVA), 23 Allee Gilbert Becaud, 34470 Perols, France
| | - Jorge Escorihuela
- Departamento de Química Orgánica, Universitat de València, Avda. Vicente Andrés Estellés s/n, Burjassot, 46100 Valencia, Spain
| | - Souradeep De
- School of Advanced Materials, Green Energy and Sensor Systems, Indian Institute of Engineering Science and Technology (IIEST), P.O. Botanic Garden, Howrah 711103, West Bengal, India
| | - Debabani Ganguly
- Centre for Health Science and Technology (CHeST), JIS Institute of Advanced Studies and Research Kolkata, Saltlake, Kolkata 700091, West Bengal, India
| | - Suman Bhadra
- Centre for Health Science and Technology (CHeST), JIS Institute of Advanced Studies and Research Kolkata, Saltlake, Kolkata 700091, West Bengal, India
| | - Mrinal K Bera
- Department of Chemistry, Indian Institute of Engineering Science and Technology (IIEST), Shibpur, P.O. Botanic Garden, Howrah 711103, West Bengal, India
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Recent update on the role of N-methyl glycine as a building block for the construction of N-heterocyclic frameworks. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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