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Home > Encyclopedia > 4-Piperidinecarboxylic acid, methyl ester, hydrochloride (1:1)

4-Piperidinecarboxylic acid, methyl ester, hydrochloride (1:1)

4-Piperidinecarboxylic acid, methyl ester, hydrochloride (1:1) structure

4-Piperidinecarboxylic acid, methyl ester, hydrochloride (1:1) 

structure
  • CAS No:

    7462-86-4

  • Formula:

    C7H13NO2.ClH

  • Chemical Name:

    4-Piperidinecarboxylic acid, methyl ester, hydrochloride (1:1)

  • Synonyms:

    4-Piperidinecarboxylic acid,methyl ester,hydrochloride (1:1);4-Piperidinecarboxylic acid,methyl ester,hydrochloride;Methyl isonipecotate hydrochloride;Methyl piperidine-4-carboxylate hydrochloride;Piperidin-4-carboxylic acid methyl ester hydrochloride

  • Categories:

    Pharmaceutical Intermediates  >  Bulk Drug Intermediates

4-Piperidinecarboxylic acid, methyl ester, hydrochloride (1:1) Basic Attributes

179.65

179.071304

2933399090

Characteristics

38.3

1.06

160-161 °C

193.8°C at 760 mmHg

89ºC

1.465

Safety Information

R36/37/38

S26-S36

Xi:Irritant;

4-Piperidinecarboxylic acid, methyl ester, hydrochloride (1:1) Use and Manufacturing

To a solution of 1-tert-butyl 4-methyl piperidine-1, 4-dicarboxylate (2.16 g, 8.88 mmol) in DCM (3 mL) was added a HCl in EtOAcsolution (4 M, 6 mL) . The mixture was stirred at rt for 1.5 h and concentratedto give the title compound as a white solid (1.59 g, 99) . To N-Boc-4- methyl-piperidine (2.16g, 8.88mmol) in dichloromethane (3mL) was added a solution of HCl inethyl acetate solution (4M, 6mL), stirred at room temperature 1.5h, the solvent was removed to give 1.59g ofwhite solid: compound 4-methyl-piperidine hydrochloride, yield: 99.A solution of 4-piperidinecarboxylic acid (500 g, 3.87 mol) and methanol (2.5 L) was added to the reaction flask, and thionyl chloride (460.4 g, 3.87 mol) was added dropwise, and the temperature was gradually increased during the dropwise addition Temperature rise to 80 reflux reaction 3h. The reaction solution was concentrated under reduced pressure at 50 ° C to give 687 g of a white solid, the yield was 98.8percent

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