Chloral → Cyclohexanecarboxylic acid (2,2,2-trichloroethylidene)hydrazide

Beteiligte Stoffe

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Reaktionsschritte

Cyclohexanecarboxylic acid (2,2,2-trichloroethylidene)hydrazide was prepared by refluxing a solution containing 23.0 grams (0.162 mol) of cyclohexanecarboxylic acid hydrazide and 44.2 grams (0.3 mol) of trichloroacetaldehyde in 300 ml milliliters of benzene. Water was removed as formed. After 3 hours, the reaction mixture was concentrated to a volume of 100 milliliters, diluted with 500 milliliters of hexane, chilled to 5° C., and filtered to yield 34 grams of the desired hydrazide as a white solid, melting point 178°-180° C.

Herkunft & Nachweise