Water → 5-t-Butyl-3-cyclobutanecarbonylaminopyrazole

Beteiligte Stoffe

Reaktionsschritte

4.3 g (0.03 mole) of 3-amino-5-t-butylpyrazole as prepared in Example 1 and 3 g of triethylamine were dissolved in 30 ml of methylene chloride. To this solution was added dropwise 3.6 g of cyclobutanecarboxylic acid chloride dissolved in 30 ml of carbon tetrachloride. The resulting mixture was allowed to stand at room temperature over night. Thereafter, water was added thereto followed by shaking it. Crystals thus formed were collected by filtration and washed with water and carbon tetrachloride to obtain 5-t-butyl-3-cyclobutanecarbonylaminopyrazole.

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