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An efficient and practical synthesis of methylene dioximes by combination of ultrasound and phase transfer catalyst |
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| Authors: | Li Ji-Tai Li Xiao-Liang |
| Institution: | aCollege of Chemistry and Environmental Science, Hebei University, Key Laboratory of Analytical Science and Technology of Hebei Province, Baoding 071002, PR China |
| Abstract: | The reaction of oximes with dichloromethane was carried out in 71–98% yields at 20–30 °C for 2–3.5 h in the presence of sodium hydroxide by combination of benzyldimethyltetradecylammonium chloride and ultrasonication. The main advantage of the present procedure is that the reaction time is much shorter than classical methods. |
| Keywords: | Methylene dioximes Phase transfer catalysis Ultrasound |
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