Acetaldehyde → Acetaldehyde 4-methoxyphenylhydrazone

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

Combine (4-methoxyphenyl)-hydrazine hydrochloride salt (10 g, 57 mmol), sodium hydroxide solution (50 mL, 1M), and extract with toluene. Dry the organic layer over MgSO4, filter, and evaporate in vacuo to give a residue. Combine the residue and toluene (50 mL) and cool to 0° C. Add acetaldehyde (3.5 mL, 63 mmol) dropwise as a solution in toluene (10 mL). When the addition is complete, warm to ambient temperature. After 1 hour at ambient temperature evaporate under a stream of nitrogen to give N-(4-methoxyphenyl)-N'-ethylidene hydrazine.

Herkunft & Nachweise