Citation: Hong Ping LI, Hai Fei ZHANG, Jun LIU, Bu Xing HAN. Cosolvent Effect on the Tautomerism of Ethyl Acetoacetate in Supercritical CO₂[J]. Chinese Chemical Letters, ;2001, 12(4): 351-352. shu

Cosolvent Effect on the Tautomerism of Ethyl Acetoacetate in Supercritical CO₂

Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080

Received Date: 7 September 2000

Fund Project: This work was financially support by National Basic Research Project (G2000048010).

The effect of cosolvent cyclohexane, chloroform, and acetonitrile on the keto-enol tautomeric equilibrium of ethyl acetoacetate in supercritical CO₂ was studied by UV-Vis spectroscopy over the pressure range from 76 to 110 bar at 308.15 K. It was found that the equilibrium constant decreases with increasing polarity of the cosolvents.
- Supercritical CO₂,
- cosolvent effect,
- ethyl acetoacetate,
- tautomerism.
1. [1]
  Liang Ma , Zhou Li , Zhiqiang Jiang , Xiaofeng Wu , Shixin Chang , Sónia A. C. Carabineiro , Kangle Lv . Effect of precursors on the structure and photocatalytic performance of g-C3N4 for NO oxidation and CO2 reduction. Chinese Journal of Structural Chemistry, 2024, 43(11): 100416-100416. doi: 10.1016/j.cjsc.2024.100416
2. [2]
  Xingxing Jiang , Yuxin Zhao , Yan Kong , Jianju Sun , Shangzhao Feng , Xin Lu , Qi Hu , Hengpan Yang , Chuanxin He . Support effect and confinement effect of porous carbon loaded tin dioxide nanoparticles in high-performance CO₂ electroreduction towards formate. Chinese Chemical Letters, 2025, 36(1): 109555-. doi: 10.1016/j.cclet.2024.109555
3. [3]
  Fanxin Kong , Hongzhi Wang , Huimei Duan . Inhibition effect of sulfation on Pt/TiO2 catalysts in methane combustion. Chinese Journal of Structural Chemistry, 2024, 43(5): 100287-100287. doi: 10.1016/j.cjsc.2024.100287
4. [4]
  Hong Dong , Feng-Ming Zhang . Covalent organic frameworks for artificial photosynthetic diluted CO2 reduction. Chinese Journal of Structural Chemistry, 2024, 43(7): 100307-100307. doi: 10.1016/j.cjsc.2024.100307
5. [5]
  Ping Wang , Tianbao Zhang , Zhenxing Li . Reconstruction mechanism of Cu surface in CO2 reduction process. Chinese Journal of Structural Chemistry, 2024, 43(8): 100328-100328. doi: 10.1016/j.cjsc.2024.100328
6. [6]
  Muhammad Humayun , Mohamed Bououdina , Abbas Khan , Sajjad Ali , Chundong Wang . Designing single atom catalysts for exceptional electrochemical CO2 reduction. Chinese Journal of Structural Chemistry, 2024, 43(1): 100193-100193. doi: 10.1016/j.cjsc.2023.100193
7. [7]
  Zixuan Zhu , Xianjin Shi , Yongfang Rao , Yu Huang . Recent progress of MgO-based materials in CO₂ adsorption and conversion: Modification methods, reaction condition, and CO₂ hydrogenation. Chinese Chemical Letters, 2024, 35(5): 108954-. doi: 10.1016/j.cclet.2023.108954
8. [8]
  Hui Bian , Xinyi Yuan , Nan Zhang , Zhuo Xu , Juhong Lian , Ruibin Jiang , Junqing Yan , Deng Li , Shengzhong (Frank) Liu . Correlating vacancy-defect density with CO₂ activation for promoted CO₂ methanation over CsPbBr₃ photocatalyst. Chinese Chemical Letters, 2025, 36(7): 111034-. doi: 10.1016/j.cclet.2025.111034
9. [9]
  Jiajia Zhuang , Chunyu Cui , Changjiang Li , Gang Luo , Jiaping Tong , Di Sun . Counter-ion effect to the Ising-type magnetic anisotropy and magnetic relaxation in trigonal bipyramidal Co(Ⅱ) complexes. Chinese Chemical Letters, 2025, 36(7): 110091-. doi: 10.1016/j.cclet.2024.110091
10. [10]
  Wenlong LI , Xinyu JIA , Jie LING , Mengdan MA , Anning ZHOU . Photothermal catalytic CO₂ hydrogenation over a Mg-doped In₂O_3-x catalyst. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 919-929. doi: 10.11862/CJIC.20230421
11. [11]
  Linlu Bai , Wensen Li , Xiaoyu Chu , Haochun Yin , Yang Qu , Ekaterina Kozlova , Zhao-Di Yang , Liqiang Jing . Effects of nanosized Au on the interface of zinc phthalocyanine/TiO₂ for CO₂ photoreduction. Chinese Chemical Letters, 2025, 36(2): 109931-. doi: 10.1016/j.cclet.2024.109931
12. [12]
  Xiang-Da Zhang , Jian-Mei Huang , Xiaorong Zhu , Chang Liu , Yue Yin , Jia-Yi Huang , Yafei Li , Zhi-Yuan Gu . Auto-tandem CO₂ reduction by reconstructed Cu imidazole framework isomers: Unveiling pristine MOF-mediated CO₂ activation. Chinese Chemical Letters, 2025, 36(5): 109937-. doi: 10.1016/j.cclet.2024.109937
13. [13]
  Chaochao Wei , Ru Wang , Zhongkai Wu , Qiyue Luo , Ziling Jiang , Liang Ming , Jie Yang , Liping Wang , Chuang Yu . Revealing the size effect of FeS₂ on solid-state battery performances at different operating temperatures. Chinese Chemical Letters, 2024, 35(6): 108717-. doi: 10.1016/j.cclet.2023.108717
14. [14]
  Ting-Ting Huang , Jin-Fa Chen , Juan Liu , Tai-Bao Wei , Hong Yao , Bingbing Shi , Qi Lin . A novel fused bi-macrocyclic host for sensitive detection of Cr₂O₇²⁻ based on enrichment effect. Chinese Chemical Letters, 2024, 35(7): 109281-. doi: 10.1016/j.cclet.2023.109281
15. [15]
  Jaeyong Ahn , Zhenping Li , Zhiwei Wang , Ke Gao , Huagui Zhuo , Wanuk Choi , Gang Chang , Xiaobo Shang , Joon Hak Oh . Surface doping effect on the optoelectronic performance of 2D organic crystals based on cyano-substituted perylene diimides. Chinese Chemical Letters, 2024, 35(9): 109777-. doi: 10.1016/j.cclet.2024.109777
16. [16]
  Weiping Guo , Ying Zhu , Hong-Hua Cui , Lingyun Li , Yan Yu , Zhong-Zhen Luo , Zhigang Zou . β-Pb₃P₂S₈: A new optical crystal with exceptional birefringence effect. Chinese Chemical Letters, 2025, 36(2): 110256-. doi: 10.1016/j.cclet.2024.110256
17. [17]
  Shilong Li , Ming Zhao , Yefei Xu , Zhanyi Liu , Mian Li , Qing Huang , Xiang Wu . Performance optimization of aqueous Zn/MnO₂ batteries through the synergistic effect of PVP intercalation and GO coating. Chinese Chemical Letters, 2025, 36(3): 110701-. doi: 10.1016/j.cclet.2024.110701
18. [18]
  Shu-Ran Xu , Fang-Xing Xiao . Metal halide perovskites quantum dots: Synthesis, and modification strategies for solar CO2 conversion. Chinese Journal of Structural Chemistry, 2023, 42(12): 100173-100173. doi: 10.1016/j.cjsc.2023.100173
19. [19]
  Tianbo Jia , Lili Wang , Zhouhao Zhu , Baikang Zhu , Yingtang Zhou , Guoxing Zhu , Mingshan Zhu , Hengcong Tao . Modulating the degree of O vacancy defects to achieve selective control of electrochemical CO₂ reduction products. Chinese Chemical Letters, 2024, 35(5): 108692-. doi: 10.1016/j.cclet.2023.108692
20. [20]
  Yufei Jia , Fei Li , Ke Fan . Surface reconstruction of Cu-based bimetallic catalysts for electrochemical CO2 reduction. Chinese Journal of Structural Chemistry, 2024, 43(3): 100255-100255. doi: 10.1016/j.cjsc.2024.100255