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Huang ZY, Yang H, Zhou L, Li QH, Zhao ZG. Et3N catalyzed direct α-addition cascade isomerization of deconjugated butenolides with α-ketoesters for the synthesis of α,γ-disubstituted butenolide derivatives. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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2
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Catalyst-free Direct Ring-opening of Cyclic Aldimines with Aliphatic Primary Amines to Construct o-Hydroxy Schiff Bases. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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Liu X, Wang J, Wu Z, Li F, Gao K, Peng F, Wang J, Shen R, Zhou Y, Liu L. An organophotoredox-catalyzed C(sp 2)-N cross coupling reaction of cyclic aldimines with cyclic aliphatic amines. Org Biomol Chem 2021; 19:3595-3600. [PMID: 33908576 DOI: 10.1039/d1ob00223f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An organophotocatalyzed C(sp2)-H/N-H cross-dehydrogenative coupling of cyclic aldimines with aliphatic amines has been developed, which represents the first example of visible-light-induced C-H amination of N-sulfonylated imines. This methodology enables the streamline assembly of amine derivatives via radical mediated C-N bond formation. The current protocol features transition-metal-free, mild conditions, good functional group tolerance and good yields.
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Affiliation(s)
- Xue Liu
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450052, China.
| | - Jingjing Wang
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
| | - Ziyan Wu
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
| | - Feng Li
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
| | - Kexin Gao
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
| | - Fanyang Peng
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
| | - Junjie Wang
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
| | - Renzeng Shen
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
| | - Yao Zhou
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi, Hubei 435002, China.
| | - Lantao Liu
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450052, China. and Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
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5
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Wang J, Liu X, Wu Z, Li F, Zhang ML, Mi Y, Wei J, Zhou Y, Liu L. Ag-Catalyzed ring-opening of tertiary cycloalkanols for C-H functionalization of cyclic aldimines. Chem Commun (Camb) 2021; 57:1506-1509. [PMID: 33443251 DOI: 10.1039/d0cc07181a] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We firstly describe a silver-catalyzed direct C-H functionalization of cyclic aldimines with cyclopropanols and cyclobutanols via a radical-mediated C-C bond cleavage strategy. The desired products were generated in decent yields with wide substrate scope under mild reaction conditions. In addition, a gram-scale reaction and synthetic transformation of the product were performed.
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Affiliation(s)
- Jingjing Wang
- Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
| | - Xue Liu
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Ziyan Wu
- Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
| | - Feng Li
- Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
| | - Ming-Liang Zhang
- Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
| | - Yiman Mi
- Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
| | - Junhao Wei
- Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China.
| | - Yao Zhou
- College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi, Hubei 435002, China.
| | - Lantao Liu
- Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, China. and College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450052, China
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