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ChemicalBook CAS DataBase List (3,4,5-TRIMETHOXYBENZOYL)AMINO]ACETIC ACID
40915-27-3

(3,4,5-TRIMETHOXYBENZOYL)AMINO]ACETIC ACID synthesis

7synthesis methods
-

Yield:40915-27-3 91%

Reaction Conditions:

with sodium chloride;sodium sulfite at 9; for 5 h;Concentration;Temperature;

Steps:

3 Example 3

In a reaction vesselAmino-acetic acid (3)0.24 mol, sodium chloride solution50ml, control the stirring speed160rpm, adding the mass fraction of 60%Sodium sulfite solution 130ml, reduce the solution temperature to 9 ° C, dropping3,4,5-trimethoxybenzamide(2) 0.16mol, plus the reaction after 5h,The molecular sieve was decolorized and addedThe mass fraction is30% oxalic acid solution to adjust the solution pH to 5,Precipitation of solid,Filtration, sodium nitrate solution washing, activated alumina dehydration, And recrystallized in a 90% nitromethane solution to obtain a white powdery solidΕ- (3,4,5-trimethoxybenzoylamino) -acetic acid(1) 47.32 g,Yield 91%.

References:

CN105601530,2016,A Location in patent:Paragraph 0005; 0013; 0014