UV-Light-Promoted Highly Efficient and Selective Transfer Hydrogenation of Azobenzenes to Hydrazobenzenes Catalyzed by Sodium Decatungstate under Hydrogen-Free, Mild and Green Condition

UV-Light-Promoted Highly Efficient and Selective Transfer Hydrogenation of Azobenzenes to Hydrazobenzenes Catalyzed by Sodium Decatungstate under Hydrogen-Free, Mild and Green Condition | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 11 June 2025 V1 Latest version Share on UV-Light-Promoted Highly Efficient and Selective Transfer Hydrogenation of Azobenzenes to Hydrazobenzenes Catalyzed by Sodium Decatungstate under Hydrogen-Free, Mild and Green Condition Authors : Junxiang Li , Lu Wang , and Jian Xiao 0000-0003-1277-0937 [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.174963246.68485151/v1 138 views 103 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract A novel method of highly efficient and selective transfer hydrogenation of azobenzenes to hydrazobenzenes catalyzed by sodium decatungstate (NaDT) has been reported for the first time. The reaction can be smoothly proceeded in the presence of isopropyl alcohol (2-PrOH) and upon 390 nm UV-light irradiation at room temperature. The corresponding 40 kinds of hydrogenated azobenzene can be obtained by selective reduction of either symmetrical or asymmetrical azobenzene in 25-960 min, and the yield can reach more than 98%. It is worth noting that NaDT maintains catalytic activity for 5 consecutive cycles in the reduction of azobenzene to 1,2-diphenylhydrazine, with little change in yield. Additionally, This reaction can be easily applied in gram-scale experiment without any changes in reaction conditions and reaction activity. Moreover, this reaction has the most catalytic effect compared with similar reactions reported recently. Furthermore, the mechanism study shows that 2-PrOH provides hydrogen source for the reaction and realizes the transformation through free radical pathway. Supplementary Material File (manuscript.docx) Download 471.43 KB Information & Authors Information Version history V1 Version 1 11 June 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords green chemistry hydrazobenzenes sodium decatungstate transfer hydrogenation uv-light-promoted Authors Affiliations Junxiang Li North China University of Science and Technology View all articles by this author Lu Wang North China University of Science and Technology View all articles by this author Jian Xiao 0000-0003-1277-0937 [email protected] North China University of Science and Technology View all articles by this author Metrics & Citations Metrics Article Usage 138 views 103 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Junxiang Li, Lu Wang, Jian Xiao. UV-Light-Promoted Highly Efficient and Selective Transfer Hydrogenation of Azobenzenes to Hydrazobenzenes Catalyzed by Sodium Decatungstate under Hydrogen-Free, Mild and Green Condition. Authorea . 11 June 2025. DOI: https://doi.org/10.22541/au.174963246.68485151/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. 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