1
|
Talpada N, Sharma AS, Sharma VS, Varma RS, Shrivastav PS, Ahmed R, Ammathnadu Sudhakar A. Visible light mediated synthesis of 1,3-diarylated imidazo[1,5- a]pyridines via oxidative amination of C-H catalyzed by graphitic carbon nitride. Org Biomol Chem 2023. [PMID: 37969017 DOI: 10.1039/d3ob01636f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
Graphitic carbon nitride (g-C3N4) as a novel heterogeneous catalyst is employed for the visible light-mediated synthesis of the imidazo[1,5-a]pyridines via the oxidative amination of C-H bond at room temperature without the need for any additional solvent. Extensive characterization of the catalyst was performed using techniques such as FT-IR, PXRD, TGA, SEM and EDX analysis. The optimized conditions enabled the successful and expeditious conversion of a wide range of substrates to imidazo[1,5-a]pyridines in good yields; a notable advantage of this catalyst being recyclability, as it can be reused for up to five cycles without significant loss of activity. This feature makes it suitable for gram-scale synthesis of imidazo[1,5-a]pyridines. Additionally, this approach offers several benefits from a green chemistry perspective as affirmed by its favorable green chemistry metrics (GCM), including low process mass intensity (PMI), low E-factor, high atom economy (AE), and good reaction mass efficiency (RME) relative to existing protocols. In addition, chemical yield (CY), mass intensity (MI), mass productivity (MP) and optimum efficiency were also calculated. This environmentally friendly method offers multiple advantages and represents a significant advancement in the synthesis of imidazo[1,5-a]pyridines.
Collapse
Affiliation(s)
- Nandish Talpada
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, Gujarat 380009, India.
| | - Anuj S Sharma
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, Gujarat 380009, India.
| | - Vinay S Sharma
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, Gujarat 380009, India.
| | - Rajender S Varma
- Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Pranav S Shrivastav
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, Gujarat 380009, India.
| | - Rahul Ahmed
- Department of Chemistry, Indian Institute of Technology, Guwahati, 781039, Assam, India.
| | - Achalkumar Ammathnadu Sudhakar
- Department of Chemistry, Indian Institute of Technology, Guwahati, 781039, Assam, India.
- Centre for Sustainable Polymers, Indian Institute of Technology, Guwahati, 781039, Assam, India
| |
Collapse
|
2
|
Basu S, Rana S, Saha P, Ghosh P, Mukhopadhyay C. FeCl 3-Catalyzed Synthesis of 6-Thioxo-hexahydroindeno[1',2':4,5]imidazo[1,5- a]pyridin-12(6 H)-ones via an Interesting [1,2] Oxygen Shift Pathway. J Org Chem 2022; 87:9755-9763. [PMID: 35839324 DOI: 10.1021/acs.joc.2c00788] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An iron-catalyst mediated one-pot multicomponent route for the synthesis of novel 6-thioxo-hexahydroindeno[1',2':4,5]imidazo[1,5-a]pyridin-12(6H)-one scaffolds has been developed using ninhydrin, l-proline, and aryl isothiocyanates in ethanol medium. This methodology offers an interesting [1,2] oxygen shift mechanism pathway via a number of ring-opening and ring-closing cascade steps to provide diverse substituted hexahydroindeno-imidazo[1,5-a]pyridinones in excellent to good yields. The stereochemistry of the proline ring is lost during the course of the reaction. This protocol is well acceptable toward both electron-accepting and electron-donating functionalities at the ortho-, meta-, and para-positions of the isothiocyanate moiety. Nonhazardous conditions, step economic, and easy operational process are the advantages of this methodology.
Collapse
Affiliation(s)
- Soumyadip Basu
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata 700009, India
| | - Soumitra Rana
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata 700009, India
| | - Pinaki Saha
- Department of Chemistry, R. K. Mission Residential College, Narendrapur, Kolkata 700103, India
| | - Prasanta Ghosh
- Department of Chemistry, R. K. Mission Residential College, Narendrapur, Kolkata 700103, India
| | - Chhanda Mukhopadhyay
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata 700009, India
| |
Collapse
|
3
|
Li Z, Mayer RJ, Ofial AR, Mayr H. From Carbodiimides to Carbon Dioxide: Quantification of the Electrophilic Reactivities of Heteroallenes. J Am Chem Soc 2020; 142:8383-8402. [DOI: 10.1021/jacs.0c01960] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhen Li
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 München, Germany
| | - Robert J. Mayer
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 München, Germany
| | - Armin R. Ofial
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 München, Germany
| | - Herbert Mayr
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 München, Germany
| |
Collapse
|
4
|
Saeedi S, Sedaghat A, Nematpour M, Jahani M, Tabatabai SA. Synthesis of poly-substituted thiophenes in the realm of sulfonylketenimines chemistry. J Sulphur Chem 2019. [DOI: 10.1080/17415993.2019.1699927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Saeedeh Saeedi
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Anna Sedaghat
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Manijeh Nematpour
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehdi Jahani
- Department of Chemistry, Sharif University of Technology, Tehran, Iran
| | - Sayyed Abbas Tabatabai
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| |
Collapse
|
5
|
Sheng J, Liu J, Zhao H, Zheng L, Wei X. Metal-free synthesis of imidazo[1,5-a]pyridines via elemental sulfur mediated sequential dual oxidative Csp 3-H amination. Org Biomol Chem 2019; 16:5570-5574. [PMID: 30047971 DOI: 10.1039/c8ob01391h] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and efficient approach has been developed for the synthesis of imidazo[1,5-a]pyridines using the elemental sulfur mediated sequential dual oxidative Csp3-H amination of 2-pyridyl acetates and amines under metal- and peroxide-free conditions. Broad substrate scope, operational simplicity and gram-scale ability make this chemistry very practical.
Collapse
Affiliation(s)
- Jie Sheng
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China.
| | | | | | | | | |
Collapse
|
6
|
Wu SS, Feng CT, Hu D, Huang YK, Li Z, Luo ZG, Ma ST. Iodine-catalyzed direct C–H thiolation of imidazo[1,5-a]quinolines for the synthesis of 3-sulfenylimidazo[1,5-a]quinolines. Org Biomol Chem 2017; 15:1680-1685. [DOI: 10.1039/c6ob02736a] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An iodine-catalyzed regioselective sulfenylation of imidazo[1,5-a]quinolines was developed under metal- and oxidant-free reaction conditions.
Collapse
Affiliation(s)
- Song-Song Wu
- School of Chemical Engineering
- Anhui University of Science and Technology
- Huainan
- PR China
| | - Cheng-Tao Feng
- School of Chemical Engineering
- Anhui University of Science and Technology
- Huainan
- PR China
| | - Di Hu
- School of Pharmacy
- Harbin University of Commerce
- Harbin
- PR China
| | - Ye-Kai Huang
- School of Chemical Engineering
- Anhui University of Science and Technology
- Huainan
- PR China
| | - Zhong Li
- School of Chemical Engineering
- Anhui University of Science and Technology
- Huainan
- PR China
| | - Zai-Gang Luo
- School of Chemical Engineering
- Anhui University of Science and Technology
- Huainan
- PR China
| | - Shi-Tang Ma
- College of Food and Drug
- Anhui Science and Technology University
- Fengyang
- PR China
| |
Collapse
|
7
|
Li Z, Wu SS, Luo ZG, Liu WK, Feng CT, Ma ST. Copper-Promoted Double Oxidative C–H Amination Cascade for the Synthesis of Imidazo[1,5-a]quinolines. J Org Chem 2016; 81:4386-92. [DOI: 10.1021/acs.joc.6b00569] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhong Li
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, PR China
| | - Song-Song Wu
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, PR China
| | - Zai-Gang Luo
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, PR China
| | - Wei-Kang Liu
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, PR China
| | - Cheng-Tao Feng
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, PR China
| | - Shi-Tang Ma
- College
of Food and Drug, Anhui Science and Technology University, Fengyang, Anhui 233100, PR China
| |
Collapse
|
8
|
Wang H, Xu W, Xin L, Liu W, Wang Z, Xu K. Synthesis of 1,3-Disubstituted Imidazo[1,5-a]pyridines from Amino Acids via Catalytic Decarboxylative Intramolecular Cyclization. J Org Chem 2016; 81:3681-7. [DOI: 10.1021/acs.joc.6b00343] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Huiqiao Wang
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Wentao Xu
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Lilan Xin
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Wenmin Liu
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Zhiqiang Wang
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Kun Xu
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| |
Collapse
|
9
|
Wu YD, Geng X, Gao Q, Zhang J, Wu X, Wu AX. Iodine-promoted sequential dual oxidative Csp3–H amination/Csp3–H iodination reactions: efficient synthesis of 1-iodoimidazo[1,5-a]pyridines. Org Chem Front 2016. [DOI: 10.1039/c6qo00313c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An iodine-promoted sequential dual oxidative Csp3–H amination of aryl methyl ketones and Csp3–H iodination of pyridin-2-ylmethanamines have been realized for the first time. This simple and efficient approach constructed 1-iodoimidazo[1,5-a]pyridines in moderate to good yields.
Collapse
Affiliation(s)
- Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Xiao Geng
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Qinghe Gao
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Jingjing Zhang
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Xia Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| |
Collapse
|
10
|
Wang H, Xu W, Wang Z, Yu L, Xu K. Copper-Catalyzed Oxidative Amination of sp3 C–H Bonds under Air: Synthesis of 1,3-Diarylated Imidazo[1,5-a]pyridines. J Org Chem 2015; 80:2431-5. [DOI: 10.1021/jo5027723] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Huiqiao Wang
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Wentao Xu
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Zhiqiang Wang
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Lintao Yu
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Kun Xu
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| |
Collapse
|
11
|
Yan Y, Zhang Y, Zha Z, Wang Z. Mild Metal-Free Sequential Dual Oxidative Amination of C(sp3)–H bonds: Efficient Synthesis of Imidazo[1,5-a]pyridines. Org Lett 2013; 15:2274-7. [DOI: 10.1021/ol4008487] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Yizhe Yan
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yonghui Zhang
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Zhenggen Zha
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Zhiyong Wang
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| |
Collapse
|
12
|
Wang Q, Zhang S, Guo F, Zhang B, Hu P, Wang Z. Natural α-amino acids applied in the synthesis of imidazo[1,5-a]N-heterocycles under mild conditions. J Org Chem 2012. [PMID: 23181828 DOI: 10.1021/jo302299u] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A facile iodine-mediated decarboxylative cyclization from α-amino acids and N-heterocyclic carbaldehydes was developed. By virtue of this method, a series of imidazo[1,5-a]N-heterocycles can be synthesized efficiently under mild conditions. A tentative reaction mechanism was proposed based on the experimental results and previous reports.
Collapse
Affiliation(s)
- Qiang Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | | | | | | | | | | |
Collapse
|
13
|
|
14
|
Kakehi A, Itoh K, Suga H, Kobayashi H, Muranaka H, Shiro M. Unexpected Formation of Thiino[3’,4’:4,5]oxazolo[1,3-b][1,3]oxazepine Derivatives. HETEROCYCLES 2011. [DOI: 10.3987/com-11-12157] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|