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Kee Cheng J, Tan B. Chiral Phosphoric Acid-Catalyzed Enantioselective Synthesis of Axially Chiral Compounds Involving Indole Derivatives. CHEM REC 2023; 23:e202300147. [PMID: 37358342 DOI: 10.1002/tcr.202300147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/02/2023] [Indexed: 06/27/2023]
Abstract
Indoles are one of the most ubiquitous subclass of N-heterocycles and are increasingly incorporated to design new axially chiral scaffolds. The rich profile of reactivity and N-H functionality allow chemical derivatization for enhanced medicinal, material and catalytic properties. Although asymmetric C-C coupling of two arenes gives the most direct access of axially chiral biaryl scaffolds, this chemistry has been the remit of metal catalysis and works efficiently on limited substrates. Our group has devoted special interest in devising novel organocatalytic arylation reactions to fabricate biaryl atropisomers. In this realm, indoles and derivatives have been reliably used as the arylation partners in combination with azoarenes, nitrosonapthalenes and quinone derivatives. Their efficient interaction with chiral phosphoric acid catalyst as well as the tunability of electronics and sterics have enabled excellent control of stereo-, chemo- and regioselectivity to furnish diverse scaffolds. In addition, indoles could act as nucleophiles in desymmetrization of 1,2,4-triazole-3,5-diones. This account provides a succinct illustration of these developments.
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Affiliation(s)
- Jun Kee Cheng
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Bin Tan
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
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Liu J, Chen J, Liu T, Liu J, Zeng Y. Recent Advances in the Reactions of β-Naphthol at α-Position. CHINESE J ORG CHEM 2023. [DOI: 10.6023/cjoc202207015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
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Qin J, Zhou T, Zhou TP, Tang L, Zuo H, Yu H, Wu G, Wu Y, Liao RZ, Zhong F. Catalytic Atroposelective Electrophilic Amination of Indoles. Angew Chem Int Ed Engl 2022; 61:e202205159. [PMID: 35612900 DOI: 10.1002/anie.202205159] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Indexed: 01/13/2023]
Abstract
Reported here is the first catalytic atroposelective electrophilic amination of indoles, which delivers functionalized atropochiral N-sulfonyl-3-arylaminoindoles with excellent optical purity. This reaction was furnished by 1,6-nucleophilic addition to p-quinone diimines. Control experiments suggest an ionic mechanism that differs from the radical addition pathway commonly proposed for 1,6-addition to quinones. The origin of 1,6-addition selectivity was investigated through computational studies. Preliminary studies show that the obtained 3-aminoindoles atropisomers exhibit anticancer activities. This method is valuable with respect to enlarging the toolbox for atropochiral amine derivatives.
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Affiliation(s)
- Jingyang Qin
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
| | - Tong Zhou
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
| | - Tai-Ping Zhou
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
| | - Langyu Tang
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
| | - Honghua Zuo
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
| | - Huaibin Yu
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
| | - Guojiao Wu
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
| | - Yuzhou Wu
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
| | - Rong-Zhen Liao
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
| | - Fangrui Zhong
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
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Qin J, Zhou T, Zhou T, Tang L, Zuo H, Yu H, Wu G, Wu Y, Liao RZ, Zhong F. Catalytic Atroposelective Electrophilic Amination of Indoles. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jingyang Qin
- Huazhong University of Science and Technology School of Chemistry and Chemical Engineering CHINA
| | - Tong Zhou
- Huazhong University of Science and Technology School of Chemistry and Chemical Engineering CHINA
| | - Taiping Zhou
- Huazhong University of Science and Technology School of Chemistry and Chemical Engineering CHINA
| | - Langyu Tang
- Huazhong University of Science and Technology School of Chemistry and Chemical Engineering CHINA
| | - Honghua Zuo
- Huazhong University of Science and Technology School of Chemistry and Chemical Engineering CHINA
| | - Huaibin Yu
- Huazhong University of Science and Technology School of Chemistry and Chemical Engineering CHINA
| | - Guojiao Wu
- Huazhong University of Science and Technology School of Chemistry and Chemical Engineering CHINA
| | - Yuzhou Wu
- Huazhong University of Science and Technology School of Chemistry and Chemical Engineering CHINA
| | - Rong-Zhen Liao
- Huazhong University of Science and Technology School of Chemistry and Chemical Engineering CHINA
| | - Fangrui Zhong
- Huazhong University of Science and Technology School of Chemistry and Chemical Engineering Luoyu road 1037 430074 Wuhan CHINA
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Abstract
The atroposelective formation of C-N bonds has recently emerged within the field of amination reactions. On first sight, it may seem quite surprising that such an ancient class of organic coupling reactions (Gabriel, Ullmann, Goldberg, Buchwald, Hartwig and many others) has so few enantioselective solutions, and this in spite of asymmetric synthesis being now a mature concept and field. Why should enantioselective C-N bond formation be so difficult? This question and some of the first examples that promise an imminent change of paradigm are herein discussed.
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Affiliation(s)
- Vinzenz Thönnißen
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Frederic W. Patureau
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
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