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piperidine methyl ketone CAS 28578-16-7, chemical name: 3,4-methylenedioxyphenyl-2-acetone (mdp-2-p), chemical formula C10H10O3, relative molecular weight. Dosage 178.02, relative density 1195, boiling point 283 ℃, light yellow oily liquid at room temperature, soluble in ordinary organic solvents, insoluble in water.
What is the method of direct synthesis of piperidine methyl ketone CAS 28578-16-7 from safrole?
What is the synthetic process of piperone methyl Schiff base potassium?
How to synthesize piperidine methyl ketone CAS 28578-16-7 from piperinaldehyde?
The direct synthesis method adopts the improved Wacker method, which initially refers to the oxidation of ethylene to acetaldehyde with oxygen in the air in water containing palladium tetrachloride catalyst. Under the action of Wacker catalyst, terminal olefins, inner olefins and cyclic olefins with high carbon number can also be transformed.
However, due to the spatial effect of olefin structure and the isomerization of palladium catalyzed reaction, the yield of the reaction product is much lower than that of ethylene oxidation product. In order to improve the catalytic effect of Wacker catalyst, we can start from the selection of appropriate cosolvent, oxidant and palladium complex. Others directly synthesize piperidine methyl ketone CAS 28578-16-7 with safrole as raw material, methanol as solvent, benzoquinone as oxidant and palladium chloride as catalyst.
Synthesis of piperidine methyl ketone CAS 28578-16-7 Schiff base potassium. Dissolve 10mmol glycine and equimolar potassium hydroxide in an appropriate amount of absolute ethanol, shake well at room temperature until most of glycine is dissolved, and filter with suction. The filtrate is colorless and transparent glycine potassium ethanol solution. Take 10mmol of piperine methyl ketone into a round bottom flask, add an appropriate amount of absolute ethanol, shake well, and dissolve at room temperature. Then, put the glycine potassium ethanol solution into a water bath at 50-60 C, stir for 3 hours, stand still, cool overnight, suction filtration, wash with absolute ethanol and vacuum drying to obtain light yellow. Strong.
Piperonal is also known as jasmonal aldehyde, and its chemical name is 3,4-methylene dioxygenaldehyde. The synthesis process using piperaldehyde as raw material has simple raw materials, no large amount of waste gas and liquid waste discharge in the synthesis process, and is friendly to the environment. In this study, the synthetic route of pipeline methyl ketone from pipeline aldehyde is as following:
In the first reaction step, β- nitroisourea was prepared with ammonium acetate as catalyst and glacial acetic acid as solvent.
In the second reaction step, reduced iron powder is used as catalyst. In the reaction process, the reaction products are different with the amount of hydrochloric acid: one is ketoxime and the other is ketone. Therefore, the dosage of hydrochloric acid must be controlled.
All piperine methyl ketone PMK has been widely used in many production industries, which greatly facilitates people's production work. If you want to know more about this product, please contact Mulei (Wuhan) New Material Technology Co. Ltd
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