Ethyl 1-methyl-4-piperidinecarboxylate
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Ethyl 1-methyl-4-piperidinecarboxylate
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CAS No:
24252-37-7
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Formula:
C9H17NO2
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Chemical Name:
Ethyl 1-methyl-4-piperidinecarboxylate
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Synonyms:
Ethyl 1-methylpiperidine-4-carboxylate;Ethyl 1-methyl-4-piperidinecarboxylate;1-Methyl-piperidine-4-carboxylic acid ethyl ester;Ethyl 1-methyl Piperidine-4-carboxylate;4-Piperidinecarboxylic acid, 1-methyl-, ethyl ester;ETHYL N-METHYLISONIPECOTATE;MFCD00130015;ethyl 1-methyl-piperidine-4-carboxylate;Ethyl N-methyl piperidine-4-carboxylate;1-methyl-4-piperidinecarboxylic acid ethyl ester
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CAS No:
Safety Information
NA 1993 / PGIII
3
37/38-41
26-36/37/39
Xi
P261-P280-P305 + P351 + P338
H315-H318-H335
Ethyl 1-methyl-4-piperidinecarboxylate Use and Manufacturing
Ethyl isonipecotate (20) (5.00 g, 31.8 nnno 1) was dissolved in an ice-cold mixture of glacial acetic acid (3.80 g, 63.6 mmol) and water (11 mL). Then, a 37percent aqueous formaldehyde solution (2.85 niL, 38.2 mmol) was added and the reaction mixture was hydrogenated over Pd/C (10percent, 338 mg) at 58 psi HReference 1-Methyl-piperidine-4-carboxylic acid hydrochloride; a) Preparation of 1-methyl-piperidine-4-carboxylic acid ethyl ester; Ethyl isonipecotate (3.0 g, 19.1 mmol) was added to a mixture of 90percent formic acid (10 mL) and 30percent aqueous formaldehyde (10 mL, 100 mmol) then the mixture was heated at reflux for 24 h. After cooling, the mixture was concentrated in vacuo to give an oil which was dissolved in dichloromethane. Solid sodium bicarbonate (1 g) was added and the mixture stirred for 1 h then filtered. The filtrate was concentrated in vacuo to afford 1-methyl-piperidine-4-carboxylic acid ethyl ester (2.0 g, 61percent) as a liquid, which was used as such for the next step.a)
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Ethyl 1-methyl-4-piperidinecarboxylate
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