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Li S, Lei L, Feng B, Liu X, Xian L, Li Y. N-Iodosuccinimide-Mediated Synthesis of Benzo-Fused Bisimidazoles Enabled by a One-Pot Tandem Reaction of Fluorinated Propargyl Amidines. J Org Chem 2023; 88:4101-4111. [PMID: 36926882 DOI: 10.1021/acs.joc.2c02379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
A N-iodosuccinimide (NIS)-mediated divergent and efficient tandem reaction between fluorinated propargyl amidines and aromatic o-diamines without any metal catalyst and additive under mild reaction conditions was developed for the synthesis of benzo-fused bisimidazoles in moderate to excellent yields. Preliminary mechanistic studies suggested that this reaction proceeded by an intermediate of secondary amine derived from 5-iodomethyl imidazole, and NIS played another role of oxidation reagent to promote the formation of a benzimidazole motif.
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Affiliation(s)
- Shan Li
- Guangxi Key Laboratory of Urban Water Environment, Key laboratory of Regional Ecological Environment Analysis and Pollution Control of West Guangxi, College of Chemistry and Environment Engineering, Baise University, 21 Zhongshan No.2 Road, Baise 533000, China
| | - Lu Lei
- Guangxi Key Laboratory of Urban Water Environment, Key laboratory of Regional Ecological Environment Analysis and Pollution Control of West Guangxi, College of Chemistry and Environment Engineering, Baise University, 21 Zhongshan No.2 Road, Baise 533000, China
| | - Bin Feng
- Guangxi Key Laboratory of Urban Water Environment, Key laboratory of Regional Ecological Environment Analysis and Pollution Control of West Guangxi, College of Chemistry and Environment Engineering, Baise University, 21 Zhongshan No.2 Road, Baise 533000, China
| | - Xiaofeng Liu
- Guangxi Key Laboratory of Urban Water Environment, Key laboratory of Regional Ecological Environment Analysis and Pollution Control of West Guangxi, College of Chemistry and Environment Engineering, Baise University, 21 Zhongshan No.2 Road, Baise 533000, China
| | - Liqing Xian
- Guangxi Key Laboratory of Urban Water Environment, Key laboratory of Regional Ecological Environment Analysis and Pollution Control of West Guangxi, College of Chemistry and Environment Engineering, Baise University, 21 Zhongshan No.2 Road, Baise 533000, China
| | - Yajun Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou 350002, China
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Mathuri A, Pramanik M, Parida A, Mal P. Disulfide metathesis via sulfur⋯iodine interaction and photoswitchability. Org Biomol Chem 2021; 19:8539-8543. [PMID: 34546277 DOI: 10.1039/d1ob01581h] [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
The idea of constitutional dynamic chemistry (CDC) and dynamic combinatorial chemistry (DCC) is widespread in the literature using the chemistry of disulfides. The synthesis of unsymmetrical diaryl disulfides is challenging due to the presence of a weak S-S bond. We report herein the synthesis of unsymmetrical diaryl disulfides from two symmetrical disulfides via a cross-metathesis reaction which was controlled by a weak sulfur⋯iodine (S⋯I) interaction. The unsymmetrical disulfides were stable in acetonitrile solution in the presence of N-iodosuccinimide (NIS), and found to be reversibly photoswitchable to the symmetrical disulfides under visible light irradiation.
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Affiliation(s)
- Ashis Mathuri
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India.
| | - Milan Pramanik
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India.
| | - Amarchand Parida
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India.
| | - Prasenjit Mal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India.
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Choudhuri K, Maiti S, Mal P. Iodine(III) Enabled Dehydrogenative Aryl C−S Coupling by in situ Generated Sulfenium Ion. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801510] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Khokan Choudhuri
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar; PO Bhimpur-Padanpur; Via Jatni, District Khurda Odisha 752050 India
| | - Saikat Maiti
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar; PO Bhimpur-Padanpur; Via Jatni, District Khurda Odisha 752050 India
| | - Prasenjit Mal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar; PO Bhimpur-Padanpur; Via Jatni, District Khurda Odisha 752050 India
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Pramanik M, Choudhuri K, Mal P. N
-Iodosuccinimide as Bifunctional Reagent in (E
)-Selective C(sp2
)−H Sulfonylation of Styrenes. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800644] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Milan Pramanik
- Milan Pramanik, Khokan Choudhuri, Dr. Prasenjit Mal, School of Chemical Sciences; National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda; Odisha 752050 India
| | - Khokan Choudhuri
- Milan Pramanik, Khokan Choudhuri, Dr. Prasenjit Mal, School of Chemical Sciences; National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda; Odisha 752050 India
| | - Prasenjit Mal
- Milan Pramanik, Khokan Choudhuri, Dr. Prasenjit Mal, School of Chemical Sciences; National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda; Odisha 752050 India
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Choudhuri K, Pramanik M, Mandal A, Mal P. S−H⋅⋅⋅π Driven Anti-Markovnikov Thiol-Yne Click Reaction. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800381] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Khokan Choudhuri
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); HBNI; Bhubaneswar; PO Bhimpur-Padanpur; Via Jatni, District Khurda Odisha 752050 India
| | - Milan Pramanik
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); HBNI; Bhubaneswar; PO Bhimpur-Padanpur; Via Jatni, District Khurda Odisha 752050 India
| | - Arkalekha Mandal
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); HBNI; Bhubaneswar; PO Bhimpur-Padanpur; Via Jatni, District Khurda Odisha 752050 India
| | - Prasenjit Mal
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); HBNI; Bhubaneswar; PO Bhimpur-Padanpur; Via Jatni, District Khurda Odisha 752050 India
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