Kong Zhaoni, He Liang, Shi Yuzheng, Guan Qingqing, Ning Ping
Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China.
Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China.
Heliyon. 2020 Feb 20;6(2):e03446. doi: 10.1016/j.heliyon.2020.e03446. eCollection 2020 Feb.
To remove high oxygen content is important to make high quality oil and valuable products. In this paper, the research on homogeneous catalytic deoxygenation reactions, including decarboxylation (DCX)/decarbonylation (DCN), hydrodeoxygenation (HDO) is reviewed. Based on DCX/DCN, the classic radical reactions such as the Barton decarboxylation, Henkel, Hunsdiecker and Kochi reactions were introduced, the practice and overall performance are also discussed. In addition, the different reaction pathways and mechanisms were demonstrated and the key chemical processes have been selected from the literature as examples to elaborate the critical emphasis on the mechanistic understanding. The applications of the catalytic deoxygenation reactions for high-value products have also been highlighted. Overall, this review provides insight discussions on the DO issues and progresses in homogeneous catalytic aspects.
去除高含氧量对于生产高质量油品和有价值的产品至关重要。本文综述了均相催化脱氧反应的研究，包括脱羧（DCX）/脱羰（DCN）、加氢脱氧（HDO）。基于DCX/DCN，介绍了经典的自由基反应，如巴顿脱羧反应、亨克尔反应、洪斯迪克尔反应和高奇反应，并讨论了其实践和整体性能。此外，阐述了不同的反应途径和机理，并从文献中选取关键化学过程作为实例，详细说明了对机理理解的关键要点。还强调了催化脱氧反应在高价值产品方面的应用。总体而言，本综述对脱氧问题及均相催化方面的进展进行了深入讨论。
