Реакция #62392

ord-c1425efaa5224cce923be8ab8da418f9

Растворители

Условия реакции

Подробные условия
See reaction.notes.procedure_details.

Обработка

  1. 1
    ДругоеThe solvent was evaporated
  2. 2
    Промывкаthe resulting crystals were washed with diethyl ether
  3. 3
    Фильтрацияfiltered

Методика

17.7 g of N′-benzyloxycarbonyl-N-methyl-hydrazine carboxylic acid tert-butyl ester was dissolved in 20 mL of ethyl acetate, added with 70 mL 4N hydrogen chloride-ethyl acetate solution, and stirred at room temperature for 4 hours. The solvent was evaporated, and the resulting crystals were washed with diethyl ether and filtered, to afford 11.4 g of the title compound as white crystals.

Источник

DOI: 10.6084/m9.figshare.5104873.v1Патент: US07429609B2uspto-grants-2008_09