1
|
Li N, Zhao ZY, Huang ZH, Shao YK, Wang ZL, Tu HY, Zhang XG. Pd-Catalyzed Deacylative [4 + 1] Annulation of N-Arylimidoyl Chlorides with β-Keto Esters Leading to 2-Fluoroalkyl Indoles. J Org Chem 2024. [PMID: 39252666 DOI: 10.1021/acs.joc.4c01709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/11/2024]
Abstract
A palladium-catalyzed [4 + 1] annulation of N-arylimidoyl chlorides with β-keto esters has been developed. In the presence of Pd(OAc)2, PCy3, and K3PO4, a variety of fluoalkyl-containing N-arylimidoyl chlorides smoothly underwent the cascade C-H imidoylation/deacylative Heck-type reactions to afford biologically important 2-fluoroalkyl indoles in moderate to good yields.
Collapse
Affiliation(s)
- Na Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Zhi-Yi Zhao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Zi-Han Huang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yu-Kai Shao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Zhao-Lun Wang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Hai-Yong Tu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xing-Guo Zhang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| |
Collapse
|
2
|
Li M, Lv M, Zheng Y, Zhu M, Feng Q, Guan J, Yu X, Shen Y, Hou J, Lu Y, Huang N, Ye L. Bimetallic-Coordinated Covalent Triazine Framework-Derived FeNi Alloy Nanoparticle-Decorated Coral-Like Nanocarbons for Oxygen Electrocatalysis. ACS APPLIED MATERIALS & INTERFACES 2024; 16:633-642. [PMID: 38150331 DOI: 10.1021/acsami.3c14448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
It is highly desirable to fabricate transition bimetallic alloy-embedded porous nanocarbons with a unique nanoarchitecture for the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) in rechargeable zinc-air batteries. In this work, we introduce a template-assisted in situ alloying synthesis of FeNi alloy nanoparticle-decorated coral-like nanocarbons (FeNi-CNCs) as efficient OER/ORR dual-functional electrocatalysts. The present materials are produced through polycondensation of a covalent triazine framework (CTF), the coordination of Ni and Fe ions, and sequential pyrolytic treatment. Through the pyrolysis process, the nanolamellar FeNi-CTF precursors can be facilely converted into FeNi alloy nanoparticle-decorated nanocarbons. These nanocarbons possess a distinctive three-dimensional (3D) coral-like nanostructure, which is favorable for the transport of oxygen and the diffusion of electrolyte. As a result, FeNi-CNC-800 with the highest efficiency exhibited remarkable electrocatalytic performance and great durability. Additionally, it also can be assembled into rechargeable zinc-air batteries that can be assembled in both liquid and solid forms, offering a superior peak power density, large specific capacity, and outstanding reusability during charging/discharging cycles (e.g., 5160 charging-and-discharging cycles at 10 mA cm-2 for the liquid forms). These traits make it a highly promising option in the burgeoning field of wearable energy conversion.
Collapse
Affiliation(s)
- Mingjin Li
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China
| | - Minghui Lv
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China
| | - Yong Zheng
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China
| | - Miaomiao Zhu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Qichun Feng
- Anhui Province Joint Key Laboratory of Cold Insulation Fiber and Clothing, College of Light-Textile Engineering and Art, Anhui Agricultural University, Hefei 230036, China
| | - Jingyu Guan
- China Nuclear Power Engineering Co., Ltd., Beijing 100048, China
| | - Xiaohui Yu
- College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Yi Shen
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Jianhua Hou
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Yi Lu
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Niu Huang
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China
| | - Liqun Ye
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China
| |
Collapse
|
3
|
Zhao ZY, Zhang XG, Tu HY. Synthesis of Trifluoromethylated Dibenzoxepines via Palladium-Catalyzed Tandem C-O Bond Formation/C-H Arylation. J Org Chem 2023; 88:14242-14245. [PMID: 37747819 DOI: 10.1021/acs.joc.3c01770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
A palladium-catalyzed cyclization reaction of phenols with trifluoromethyl-containing ortho-bromo-β-chlorostyrenes has been developed. In the presence of palladium(II) acetate, tricyclohexylphosphine, and cesium carbonate, a variety of 6-trifluoromethyldibenzo[b,d]oxepines were prepared in moderate to good yields through the tandem O-alkenylation of general phenols and subsequent C-H arylation.
Collapse
Affiliation(s)
- Zhi-Yi Zhao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xing-Guo Zhang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Hai-Yong Tu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| |
Collapse
|