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Zhu H, Liu P, Liu H, Ahmed EAMA, Hu X, Li J, Xiao HP, Li X, Jiang J. Asymmetric synthesis of δ-substituted-β-keto esters and β-substituted ketones via carboxyl-assisted site- and enantio-selective addition reactions. Org Chem Front 2022. [DOI: 10.1039/d2qo00280a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Highly site- and enantio-selective additions of polyfunctional nucleophiles to imines or carbonyls were achieved via a carboxyl-assisted strategy, affording δ-substituted-β-keto esters and β-substituted ketones with good yield and enantioselectivity.
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Affiliation(s)
- Huiling Zhu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, China
| | - Peng Liu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, China
| | - Hongxin Liu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, China
| | | | - Xingen Hu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, China
- Wenzhou University of Technology, Wenzhou, China
| | - Juan Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, China
| | - Hong-Ping Xiao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, China
| | - Xinhua Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, China
| | - Jun Jiang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, China
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Guo Y, Ahmed EAMA, Ma DK, Jiang J, Liu H, Li X, Li J, Xiao HP. Synthesis of 6-Alkynyl-6-hydroxyindoloquinazolinone Scaffolds via Copper-Catalyzed Alkynylation of Tryptanthrins. Synlett 2021. [DOI: 10.1055/a-1533-1080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractWe report a copper-catalyzed direct alkynylation reaction of tryptanthrins with terminal alkynes under mild reaction conditions. The developed method provides an array of synthetic building blocks of 6-alkynyl-6-hydroxyindoloquinazolinone compounds in moderate to good yields with varied functional group compatibility. Furthermore, the obtained adducts can be smoothly converted into versatile building blocks via hydrogenation, hydration, and further Sonogashira coupling transformations.
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Affiliation(s)
- Yu Guo
- College of Chemistry and Materials Engineering, Wenzhou University
| | | | - De-Kun Ma
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University
| | - Jun Jiang
- College of Chemistry and Materials Engineering, Wenzhou University
| | - Hongxin Liu
- College of Chemistry and Materials Engineering, Wenzhou University
| | - Xinhua Li
- College of Chemistry and Materials Engineering, Wenzhou University
| | - Juan Li
- College of Chemistry and Materials Engineering, Wenzhou University
| | - Hong-Ping Xiao
- College of Chemistry and Materials Engineering, Wenzhou University
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Ahmed EAMA, Suliman AMY, Gong TJ, Fu Y. Palladium-Catalyzed Stereoselective Defluorination Arylation/Alkenylation/Alkylation of gem-Difluorinated Cyclopropanes. Org Lett 2019; 21:5645-5649. [DOI: 10.1021/acs.orglett.9b01979] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ebrahim-Alkhalil M. A. Ahmed
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China, Hefei 230026, China
| | - Ayman M. Y. Suliman
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China, Hefei 230026, China
| | - Tian-Jun Gong
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China, Hefei 230026, China
| | - Yao Fu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China, Hefei 230026, China
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Ahmed EAMA, Lu X, Gong TJ, Zhang ZQ, Xiao B, Fu Y. Copper-catalyzed/mediated borylation reactions of epoxides with diboron reagents: access to β-hydroxyl boronic esters. Chem Commun (Camb) 2017; 53:909-912. [DOI: 10.1039/c6cc07924e] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We report the first copper-catalyzed/mediated borylative ring opening reaction of epoxides.
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Affiliation(s)
- Ebrahim-Alkhalil M. A. Ahmed
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
| | - Xi Lu
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
| | - Tian-Jun Gong
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
| | - Zhen-Qi Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
| | - Bin Xiao
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
| | - Yao Fu
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
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