Citation: XIE Kangyuan, CHEN Qiang, WANG Jiayao, LIN Qingqing, ZHENG Hui. One-pot Green Synthesis of Benzil[J]. Chinese Journal of Applied Chemistry, ;2016, 33(11): 1284-1288. doi: 10.11944/j.issn.1000-0518.2016.11.160008 shu

One-pot Green Synthesis of Benzil

1.
College of Material, Chemistry & Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China

Corresponding author: ZHENG Hui,
Received Date: 6 January 2016
Available Online: 19 April 2016

One-pot green synthesis of benzil catalyzed by Co(Salen) from benzoin in alcohol-water was developed. The products was confirmed by ¹H NMR, ¹³C NMR, IR, HRMS and XRD. The orthogonal experimental design gives the optimal reaction conditions about the catalyst loading, reaction time, solvents, reaction temperature, and the amount of potassium hydroxide. The best conditions is Co(Salen) catalyst, 80% alcohol-water, 50 minutes and 70℃. The highest yield of 76.5% could be obtained under that conditions. The catalyst can be recycled at least five times up to the 74.2% yield. It is a green method and novel protocol to synthesize benzil.
- salen catalyst,
- benzoin,
- benzil,
- catalytic oxidation,
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沈阳化工大学材料科学与工程学院沈阳 110142