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ChemicalBook CAS DataBase List 3-Methylpiperidin-4-one hydrochloride
4629-78-1

3-Methylpiperidin-4-one hydrochloride synthesis

2synthesis methods
-

Yield:-

Reaction Conditions:

with hydrogenchloride in ethanol;dichloromethane at 0 - 25;

Steps:

15.1

Step 1: To a solution of racemic 3-methyl-4-oxo-piperidine-1-carboxylic acid tert-butyl ester in anhydrous DCM at 0° C., ethanolic-HCl was added slowly and the reaction mixture was allowed to stir at 25° C. for 3 h. TLC (hexanes/EtOAc 40% EtOAc) showed complete consumption of the starting material. The reaction mixture was evaporated to give racemic 3-methyl-piperidin-4-one hydrochloride which was used crude in the next reaction.

References:

US2010/144745,2010,A1 Location in patent:Page/Page column 46

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