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24153-01-3

tert-butyl 2-(2-methoxy-2-oxoethyl)piperidine-1-carboxylate synthesis

6synthesis methods
-

Yield:24153-01-3 100%

Reaction Conditions:

with thionyl chloride at 0; for 16 h;Heating / reflux;

Steps:

b

2-(1-(3,4-Dichlorophenylsulfonyl)piperidin-2-yl)acetic acid S14Piperidin-2-ylacetic acid methyl ester hydrochloride; Thionyl chloride (1.8 ml, 25.2 mmol) was added dropwise to a solution, cooled to 0° C., of piperidin-2-ylacetic acid hydrochloride (1.5 g, 8.4 mmol) in methanol (35 ml), and the mixture was heated for 16 h at gentle boiling and then cooled to room temperature. The solvent was removed azeotropically in vacuo with benzene. Yield: 1.3 g (100%)

References:

US2008/312231,2008,A1 Location in patent:Page/Page column 41

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