41051-15-4COCC(=O)CC(=O)OCQGBPKJFJAVDUNC-UHFFFAOYSA-N41051-15-4DTXSID1068273Warning
H315 (96.4%): Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 55 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
UsesMethyl 4-Methoxyacetoacetate is a reactant in the formation of an abiotic poorphyrinogen in aqueous solution.
UsesMethyl 4-methoxyacetoacetate has been used in generation of a small focused library of diversely functionalized dihydropyrimidine derivatives via one-pot three-component Biginelli cyclocondensation of β-ketoesters, aldehydes and (thio)ureas.
PreparationThe preparation method of a 4-methoxyl group methyl acetoacetate: add solvents tetrahydrofurane in a kettle. and pass into rare gas element, the temperature in the kettle arranging reactor is 15-25℃, industrial sodium hydride and metal alkaline compound is added under whipped state, add solvents tetrahydrofurane again, the mixed solution reaction 4-6h of methyl alcohol and 4-chloro methyl acetoacetate is dripped in less than 20℃, then be warming up to 20-25℃ and continue reaction 4-15h, TLC detection reaction is complete, reduce system temperature to 6-10℃, add the hydrochloric acid soln regulation system pH=5-7 that volumetric molar concentration is 2mol/L, stratification, after separatory, upper strata is concentrated is spin-dried for removing solvents tetrahydrofurane, then colorless product 4-methoxyl group methyl acetoacetate is obtained by wiped film molecular distillation.
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