Preparation method for producing dialkyl chlorophosphate reagent from polyethylene glycol
A technology of dihydrocarbyl chlorophosphate and polyethylene glycol, which is applied in the fields of chemical instruments and methods, compounds of Group 5/15 elements of the periodic table, organic chemistry, etc., and can solve the problem of long reaction time, incomplete reaction, and difficult product Purification and other issues, to achieve the effect of short reaction time
Inactive Publication Date: 2017-03-22
江苏海阔生物医药有限公司
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Abstract
The present invention provides a preparation method for producing a dialkyl chlorophosphate reagent from polyethylene glycol. The preparation method comprises: adding a preset amount of polyethylene glycol to a reaction bottle, replacing the air in the reaction bottle with an inert gas, cooling to a preset temperature, adding trisodium phosphate to the reaction bottle in a dropwise manner, diluting with a preset amount of an anhydrous solvent when the reaction is completed, filtering the product, and concentrating the product to obtain the dialkyl chlorophosphoric acid. According to the present invention, the reaction can be completely performed without any solvents in the dialkyl chlorophosphate preparation process, the reaction time is short, and the liquid waste cannot be generated; and the obtained product has the sufficient purity under the normal circumstance, the general organic synthesis requirement can be met, and the further distillation can be performed if the purity does not meet the requirement.
Application Domain
Group 5/15 element organic compounds
Technology Topic
SolventOrganic synthesis +8
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