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ChemicalBook CAS DataBase List Cinchocaine

Cinchocaine synthesis

5synthesis methods
-

Yield:85-79-0 96.4%

Reaction Conditions:

with sodium hydroxide in hexane;Reflux;Solvent;

Steps:

1

150 g of 2-chloro-N-[2-(diethylamino)ethyl]-4-quinolinecarboxamide, 39 g of sodium hydroxide were added to 90 g of n-butanol,In a solution of 600 g of n-hexane, slowly raise the temperature to reflux and separate the water.After the water is divided, the temperature is lowered to room temperature, and deionized water is added for stirring for 1 hour, and the layering is static for 0.5 hour.The aqueous phase was separated by liquid separation, and the organic phase was further stirred by adding deionized water for 0.5 h. The aqueous phase was separated by liquid separation, and the organic phase was stirred and crystallized at 0 to 10 ° C for 8 hours.Filtration and drying gave 162.5 g of cinchine product, the molar yield was 96.4%, and the liquid phase purity was 99.9%.

References:

CN108003097,2018,A Location in patent:Paragraph 0020-0022; 0023-0025; 0026-0028

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