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Li C, Shao YB, Gao X, Ren Z, Guo C, Li M, Li X. Enantioselective synthesis of chiral quinohelicenes through sequential organocatalyzed Povarov reaction and oxidative aromatization. Nat Commun 2023; 14:3380. [PMID: 37291164 DOI: 10.1038/s41467-023-39134-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 05/31/2023] [Indexed: 06/10/2023] Open
Abstract
Heterohelicenes are of increasing importance in the fields of materials science, molecular recognition, and asymmetric catalysis. However, enantioselective construction of these molecules, especially by organocatalytic methods, is challenging, and few methods are available. In this study, we synthesize enantioenriched 1-(3-indol)-quino[n]helicenes through chiral phosphoric acid-catalyzed Povarov reaction followed by oxidative aromatization. The method has a broad substrate scope and offers rapid access to an array of chiral quinohelicenes with enantioselectivities up to 99%. Additionally, the photochemical and electrochemical properties of selected quinohelicenes are explored.
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Affiliation(s)
- Chengwen Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Ying-Bo Shao
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Xi Gao
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Zhiyuan Ren
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Chenhao Guo
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Meng Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xin Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China.
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China.
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Soni JP, Kumawat A, Sathish M, Yadav S, Jadhav NA, Shankaraiah N. Catalyst‐Free Site‐Selective Diverse Functionalization of Inherent C–H Bonds in 1‐Aryl‐β‐carbolines, Norharmane and Harmine. ChemistrySelect 2022. [DOI: 10.1002/slct.202202299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jay Prakash Soni
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500 037 India
| | - Akshay Kumawat
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500 037 India
| | - Manda Sathish
- Centro de Investigación de Estudios Avanzados del Maule (CIEAM) Vicerrectoría de Investigación y Postgrado Universidad Católica del Maule Talca 3460000 Chile
| | - Sachin Yadav
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500 037 India
| | - Nayan Arvind Jadhav
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500 037 India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500 037 India
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