1
|
Yoshino J, Hirono Y, Kaneda A, Hayashi N. Synthesis, structures, and solid-state photoresponsive color change behavior of boronium complexes bearing a pyridine-imine, diimine, or pyridine-ketone bidentate ligand. Dalton Trans 2023; 52:15017-15022. [PMID: 37812026 DOI: 10.1039/d3dt02332j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
9-Borabicyclo[3.3.1]nonane-based boronium triflates bearing a N-substituted 2-pyridylmethanimine, N,N'-dialkylethane-1,2-diimine, or 2-arylcarbonylpyridine ligand were synthesized. Their tetracoordinate boron structures were determined using 11B NMR spectra and X-ray crystallography. The pyridine-imine complexes exhibited solid-state photoresponsive color changes upon UV irradiation, which indicated that boronium complexes without a bipyridine moiety also have photoresponsive capabilities. Combination of TD-DFT calculations and measurements of UV-vis absorption and fluorescence properties, diffuse reflectance spectra, and ESR spectra provided suggestions on the determining factor of the photoresponsive color change capabilities and structures of the photoproducts.
Collapse
Affiliation(s)
- Junro Yoshino
- Faculty of Science, University of Toyama, 3190 Gofuku, Toyama, Toyama 930-8555, Japan.
- Department of Chemistry, Graduate School of Science and Engineering, University of Toyama, 3190 Gofuku, Toyama, Toyama 930-8555, Japan
| | - Yoshito Hirono
- Department of Chemistry, Graduate School of Science and Engineering, University of Toyama, 3190 Gofuku, Toyama, Toyama 930-8555, Japan
| | - Ayako Kaneda
- Department of Chemistry, Graduate School of Science and Engineering, University of Toyama, 3190 Gofuku, Toyama, Toyama 930-8555, Japan
| | - Naoto Hayashi
- Faculty of Science, University of Toyama, 3190 Gofuku, Toyama, Toyama 930-8555, Japan.
- Department of Chemistry, Graduate School of Science and Engineering, University of Toyama, 3190 Gofuku, Toyama, Toyama 930-8555, Japan
| |
Collapse
|
2
|
Jiang T, Tian LC, Huang C, Zhu BX, Chen DM, Zhu C. A new fluorescent chemosensor based on 2,2’-bipyridyl acylhydrazone Schiff base: Synthesis, sensing properties, and coordination behaviors. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
3
|
Kuang Q, Hu X, Li Y, Shang S, Huang X, Liao S, Song Y, Ma W, Li S, Liu A, Liu X, Zhang X, Yuan J. A rapid construction of new boron heterocycles and evaluation of photophysical properties of iminoboronates. Org Biomol Chem 2022; 20:6413-6417. [PMID: 35876433 DOI: 10.1039/d2ob01083f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A green and efficient method for the synthesis of oxadiazaborole, dioxazaborinine, and oxadiazaborinine from the reactions of phenylboronic acid with amidoxime, α-hydroxyl oxime and α-hydroxyl hydrazone, respectively, is described. The reactions were performed under catalyst-free and mild conditions. All products can be rapidly purified by filtration and washing. In addition, a set of iminoboronates were prepared following a one-pot multicomponent reaction procedure using α-hydroxyl hydrazone, salicylaldehyde and boronic acid derivatives as starting materials and their photophysical properties were assessed. Then, cross-coupling reactions can be carried out smoothly on some target compounds, which may help develop new boron masking strategies.
Collapse
Affiliation(s)
- Qiulin Kuang
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China.
| | - Xueyuan Hu
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China.
| | - Yanwu Li
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China.
| | - Suqin Shang
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China.
| | - Xin Huang
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China.
| | - Siwei Liao
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China.
| | - Yibo Song
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China.
| | - Wanqian Ma
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China.
| | - Suzhen Li
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China.
| | - Aqin Liu
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China.
| | - Xiaoling Liu
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China.
| | - Xiuyu Zhang
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China.
| | - Jianyong Yuan
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China.
| |
Collapse
|