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ChemicalBook CAS DataBase List Propitocaine hydrochloride
1786-81-8

Propitocaine hydrochloride synthesis

2synthesis methods
-

Yield:1786-81-8 96%

Reaction Conditions:

with hydrogenchloride in water;ethyl acetate; pH=1;

Steps:

1

(C) 100g prilocaine dissolved in 500 ml of ethyl acetate, adjusting PH=1 dropping concentrated hydrochloric acid, a large amount of solid precipitated, the filtration filters cake washing several times with acetone, drained, solid 70 °C vacuum drying, get hydrochloric acid prilocaine about 96 g, yield of 96.0%. Measuring its melting point the 167-168.0 °C. Content measured by HPLC for 99.96%.

References:

CN104529812,2016,B Location in patent:Paragraph 0054

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