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Hu X, Qiao Z, Zhang L, Zhao J, Liu YZ, Zhang J, Ma X. One-pot cascade synthesis of dibenzothiophene-based heterobiaryls from dibenzothiophene-5-oxide. Org Biomol Chem 2023; 21:9123-9127. [PMID: 37947448 DOI: 10.1039/d3ob01468a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
A sulfoxide directed C-H metalation/boration/B2Pin2 mediated reduction/Suzuki coupling process to synthesize 4-substituted dibenzothiophene (DBT) in one-pot from dibenzothiophene-5-oxide (DBTO) was developed. A variety of DBT-based heterobiaryls were prepared in satisfactory to good yields. A mechanism was proposed. The application of this methodology was demonstrated by synthesizing a luminescent material.
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Affiliation(s)
- Xiaofang Hu
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, People's Republic of China.
- College of Foundation, Shanxi Agricultural University, 030800 Taigu, Shanxi, People's Republic of China.
| | - Zeen Qiao
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, People's Republic of China.
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Li Zhang
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, People's Republic of China.
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Jinzhong Zhao
- College of Foundation, Shanxi Agricultural University, 030800 Taigu, Shanxi, People's Republic of China.
| | - Ya-Zhou Liu
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, People's Republic of China.
| | - Jiangang Zhang
- College of Foundation, Shanxi Agricultural University, 030800 Taigu, Shanxi, People's Republic of China.
| | - Xiaofeng Ma
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, People's Republic of China.
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Lin Y, von Münchow T, Ackermann L. Cobaltaelectro-Catalyzed C-H Annulation with Allenes for Atropochiral and P-Stereogenic Compounds: Late-Stage Diversification and Continuous Flow Scale-Up. ACS Catal 2023; 13:9713-9723. [PMID: 38076330 PMCID: PMC10704562 DOI: 10.1021/acscatal.3c02072] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/14/2023] [Indexed: 01/25/2024]
Abstract
The 3d metallaelectro-catalyzed C-H activation has been identified as an increasingly viable strategy to access valuable organic molecules in a resource-economic fashion under exceedingly mild reaction conditions. However, the development of enantioselective 3d metallaelectro-catalyzed C-H activation is very challenging and in its infancy. Here, we disclose the merger of cobaltaelectro-catalyzed C-H activation with asymmetric catalysis for the highly enantioselective annulation of allenes. A broad range of C-N axially chiral and P-stereogenic compounds were thereby obtained in good yields of up to 98% with high enantioselectivities of up to >99% ee. The practicality of this approach was demonstrated by the diversification of complex bioactive compounds and drug molecules as well as decagram scale enantioselective electrocatalysis in continuous flow.
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Affiliation(s)
- Ye Lin
- Institut
für Organische und Biomolekulare Chemie, Georg-August-Universität
Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Tristan von Münchow
- Institut
für Organische und Biomolekulare Chemie, Georg-August-Universität
Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Lutz Ackermann
- Institut
für Organische und Biomolekulare Chemie, Georg-August-Universität
Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
- WISCh
(Wöhler-Research Institute for Sustainable Chemistry), Georg-August-Universität
Göttingen, Tammannstraße
2, 37077 Göttingen, Germany
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