1
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Qin J, Jiang S, Luo X, Wang T, Liu P, Yuan B, Yan R. I 2-catalyzed synthesis of 3-aminopyrrole with homopropargylic amines and nitrosoarenes. Chem Commun (Camb) 2024. [PMID: 38477099 DOI: 10.1039/d4cc00482e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
The synthesis of 3-aminopyrrole using the amination reagent nitrosoarenes and homopropargylic amines catalyzed by I2 through cyclization and amination has been developed. This protocol features excellent functional group tolerance and mild reaction conditions, yielding 3-aminopyrroles in moderate to good yields without a metal catalyst. This method realizes the construction and amination of the 3-aminopyrroles in which nitrosoarenes serve as the amine source and oxidant.
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Affiliation(s)
- Jiaze Qin
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 73000, Gansu, China.
| | - Shixuan Jiang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 73000, Gansu, China.
| | - Xiaofeng Luo
- Chengdu Guibao Science and Technology Co., Ltd, Chengdu 610041, Sichuan, China
| | - Tianqiang Wang
- Chengdu Guibao Science and Technology Co., Ltd, Chengdu 610041, Sichuan, China
| | - Peihua Liu
- Research Institute of Oil and Gas Technology of Changqing Oilfield Company, Xian 710018, Shaanxi, China
| | - Bingxiang Yuan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 73000, Gansu, China.
| | - Rulong Yan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 73000, Gansu, China.
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2
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Luo X, Xu MM, Xu XP, Ji SJ. NBS-induced intramolecular annulation reactions for the divergent synthesis of fused- and spirocyclic indolines. Chem Commun (Camb) 2023; 59:6576-6579. [PMID: 37183546 DOI: 10.1039/d3cc01920a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
An NBS-induced intramolecular annulation of 3-(1H-indol-3-yl)-N-alkoxypropanamide is described. The reactions proceed well and quickly under mild conditions with the help of a base. It was found that C2-substituents on the indole ring in 3-(1H-indol-3-yl)-N-alkoxypropanamide have a great influence upon the reaction. By using C2-methyl- and C2-phenyl-3-(1H-indol-3-yl)-N-alkoxypropanamide as templates, practical protocols for the divergent synthesis of fused- and spirocyclic indoline compounds were studied and established.
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Affiliation(s)
- Xian Luo
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China.
| | - Meng-Meng Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China.
| | - Xiao-Ping Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China.
- Innovation Center for Chemical Science, Soochow University, China
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China.
- Suzhou Baolidi Functional Materials Research Institute, Suzhou 215144, People's Republic of China
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3
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Liu FL, Mei L, Wang LT, Zhou Y, Tang K, Li T, Yi R, Wei WT. Radical bicyclization of 1,6-enynes with sulfonyl hydrazides by the use of TBAI/TBHP in the aqueous phase. Chem Commun (Camb) 2023; 59:6391-6394. [PMID: 37157973 DOI: 10.1039/d3cc01102j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
A novel 5-exo-dig/6-endo-trig bicyclization of 1,6-enynes with sulfonyl hydrazides in the aqueous phase using the cheap and available tetrabutylammonium iodide (TBAI)-tert-butyl hydroperoxide (TBHP) combined system is reported. The resulting reaction of diverse nitrogen- and oxygen-polyheterocycles displays high chemical selectivity, high step-economy, and a moderate substrate scope. Moreover, iodosulfonylation can be realized by modulating the structure of the 1,6-enynes.
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Affiliation(s)
- Fa-Liang Liu
- School of Materials Science and Chemical Engineering, Institute of Mass Spectrometry, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Lan Mei
- School of Materials Science and Chemical Engineering, Institute of Mass Spectrometry, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Ling-Tao Wang
- School of Materials Science and Chemical Engineering, Institute of Mass Spectrometry, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Yu Zhou
- School of Materials Science and Chemical Engineering, Institute of Mass Spectrometry, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Keqi Tang
- School of Materials Science and Chemical Engineering, Institute of Mass Spectrometry, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Ting Li
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan, 473061, China.
| | - Rongnan Yi
- Criminal Technology Department, Hunan Police Academy, Changsha, Hunan, 410138, China
| | - Wen-Ting Wei
- School of Materials Science and Chemical Engineering, Institute of Mass Spectrometry, Ningbo University, Ningbo, Zhejiang, 315211, China.
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4
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Teng QH, Lu FL, Wang K, Zhou LY, Li DP. Chemodivergent Photocatalyzed Heterocyclization of Hydrazones and Isothiocyanates for the Selectivity Synthesis of 2-Amino-1,3,4-thiadiazoles and 1,2,4-Triazole-3-thiones. J Org Chem 2023. [PMID: 37141629 DOI: 10.1021/acs.joc.3c00320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
A photocatalytic chemodivergent reaction for the selectivity formation of C-S and C-N bonds in a controlled manner was proposed. The reaction medium, either neutral or acidic, is critical to dictate the formation of 2-amino-1,3,4-thiadiazoles and 1,2,4-triazole-3-thiones from isothiocyanates and hydrazones. This is a practical protocol to achieve the chemoselectivity under mild and metal-free conditions.
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Affiliation(s)
- Qing-Hu Teng
- Guangxi Key Laboratory of Plant Functional Phytochemicals and Sustainable Utilization, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, P. R. China
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, People's Republic of China
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Feng-Lai Lu
- Guangxi Key Laboratory of Plant Functional Phytochemicals and Sustainable Utilization, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, P. R. China
| | - Kai Wang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Li-Ya Zhou
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, People's Republic of China
| | - Dian-Peng Li
- Guangxi Key Laboratory of Plant Functional Phytochemicals and Sustainable Utilization, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, P. R. China
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, People's Republic of China
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5
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Liu FC, Si MJ, Shi XR, Zhuang SY, Cai Q, Liu Y, Wu AX. Base-Controlled Synthesis of Fluorescent Acridone Derivatives via Formal (4 + 2) Cycloaddition. J Org Chem 2023. [PMID: 36780192 DOI: 10.1021/acs.joc.2c02977] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
A transition-metal-free formal (4 + 2) cycloaddition for the direct assembly of acridone derivatives has been developed from simple and easily accessible o-aminobenzamides and 2-(trimethylsilyl)aryl triflates. The base played an important role in the selective controlled synthesis of N-H and N-aryl acridones. A preliminary study on the fluorescence properties of N-aryl acridones demonstrated that they could be used as fluorescent materials with a broad emission range.
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Affiliation(s)
- Fa-Chuang Liu
- Coal Conversion and New Carbon Materials Key Laboratory of Hubei Province, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
| | - Meng-Jie Si
- Coal Conversion and New Carbon Materials Key Laboratory of Hubei Province, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
| | - Xin-Ru Shi
- Coal Conversion and New Carbon Materials Key Laboratory of Hubei Province, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
| | - Shi-Yi Zhuang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Qun Cai
- Coal Conversion and New Carbon Materials Key Laboratory of Hubei Province, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
| | - Yi Liu
- Coal Conversion and New Carbon Materials Key Laboratory of Hubei Province, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, P. R. China.,School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, P. R. China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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6
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Zheng M, Huang C, Yan JZ, Xie SL, Ke SJ, Xia HD, Duan YN. In Situ Hypoiodite-Catalyzed Oxidative Rearrangement of Chalcones: Scope and Mechanistic Investigation. J Org Chem 2023; 88:1504-1514. [PMID: 36660775 DOI: 10.1021/acs.joc.2c02291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
It is highly desirable to avoid using rare or toxic metals for oxidative reactions in the synthesis of pharmaceuticals and fine chemicals. Hypervalent iodine compounds are environmentally benign alternatives, but their catalytic use has been quite limited. Herein, the protocol for in situ hypoiodite-catalyzed oxidative rearrangement of chalcones is first realized under mild and metal-free conditions, which provided a nontoxic, environmental-benign, and catalytic alternative to the thallium-based protocol. Also, the applicability and effectiveness of this catalytic protocol got well demonstrated via gram-scale synthesis and product derivatization. What is more, control and NMR tracking experiments were performed to figure out the possible catalytic species and intermediates.
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Affiliation(s)
- Meiqiong Zheng
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou 515031, P. R. China.,Shantou University, Shantou 515031, P. R. China
| | - Chao Huang
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou 515031, P. R. China
| | - Jian-Zhong Yan
- Industry & Technology Service Center, Shantou Hi-tech Industrial Development Zone, Shantou 515031, P. R. China
| | - Shu-Li Xie
- Shantou University, Shantou 515031, P. R. China
| | - Shao-Jia Ke
- Shantou Food Inspection and Testing Center, Shantou 515031, P. R. China
| | - Hai-Dong Xia
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou 515031, P. R. China
| | - Ya-Nan Duan
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou 515031, P. R. China
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7
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Chen J, Zhang R, Ma C, Zhang P, Zhang Y, Wang B, Xue F, Jin W, Xia Y, Liu C. Sustainable electrochemical dearomatization for the synthesis of diverse 2, 3-functionalized indolines. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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8
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Moriyama K, Oka Y. Enantioselective Cascade Michael/Hemiaminal Formation of α,β-Unsaturated Iminoindoles with Aldehydes Using a Chiral Aminomethylpyrrolidine Catalyst Bearing a SO 2C 6F 5 Group as a Strongly Electron Withdrawing Arylsulfonyl Group. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Katsuhiko Moriyama
- Department of Chemistry, Graduate School of Science and Soft Molecular Activation Research Center, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Yukari Oka
- Department of Chemistry, Graduate School of Science and Soft Molecular Activation Research Center, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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9
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Tanaka H, Ukegawa N, Uyanik M, Ishihara K. Hypoiodite-Catalyzed Oxidative Umpolung of Indoles for Enantioselective Dearomatization. J Am Chem Soc 2022; 144:5756-5761. [PMID: 35319875 PMCID: PMC8991020 DOI: 10.1021/jacs.2c01852] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
![]()
Here we report the
oxidative umpolung of 2,3-disubstituted indoles
toward enantioselective dearomative aza-spirocyclization to give the
corresponding spiroindolenines using chiral quaternary ammonium hypoiodite
catalysis. Mechanistic studies revealed the umpolung reactivity of
C3 of indoles by iodination of the indole nitrogen atom. Moreover,
the introduction of pyrazole as an electron-withdrawing auxiliary
group at C2 suppressed a competitive dissociative racemic pathway,
and enantioselective spirocyclization proceeded to give not only spiropyrrolidines
but also four-membered spiroazetidines that are otherwise difficult
to access.
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Affiliation(s)
- Hiroki Tanaka
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Naoya Ukegawa
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Muhammet Uyanik
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Kazuaki Ishihara
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
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10
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Uyanik M, Tanaka H, Ishihara K. I
+
/TBHP Catalysis For Tandem Oxidative Cyclization To Indolo[2,3‐
b
]quinolines. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000570] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Muhammet Uyanik
- Graduate School of Engineering Nagoya University Chikusa Nagoya 464-8603 Japan
| | - Hiroki Tanaka
- Graduate School of Engineering Nagoya University Chikusa Nagoya 464-8603 Japan
| | - Kazuaki Ishihara
- Graduate School of Engineering Nagoya University Chikusa Nagoya 464-8603 Japan
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