반응 #78310

반응 방정식

2,4-dichlorophenylhydrazine

ethyl pyruvate

acetic acid

→

title compound

수율 83.0%

Ethyl pyruvate 2,4-dichlorophenylhydrazone

수율 83.0%

용매

ethanol

반응 조건

후처리

1. 1
   온도was refluxed for 2 hours
2. 2
   기타the solid which formed
3. 3
   여과was filtered
4. 4
   기타recrystallized from ethanol

실험 절차

A mixture of 2,4-dichlorophenylhydrazine (16.00 g, 0.075 mol), ethyl pyruvate (14.47 g, 10.3 mL, 0.12 mol), glacial acetic acid (0.9 mL), absolute ethanol (105 mL) was refluxed for 2 hours. After cooling at room temperature, the solid which formed was filtered and recrystallized from ethanol to give 17.0 g (83%) of the title compound, mp 118-120° C. (from ethanol).

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