Hydrochloric Acid → 1-[2-(2,4,6-Triethylphenyl)-2-oxoacetyl]-1-methylhydrazine

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Reaction Steps

To a 100 ml volume four-necked flask, 1-[2-(2,4,6-triethylphenyl)-2-oxoacetyl]-1-methyl-2-(1-methylethylidene)hydrazine (18-b) (21.41 g) and ethanol (35 ml) were added under a nitrogen atmosphere, 10 w/w % of hydrochloric acid (14.54 g) was added and stirred at room temperature for 2.5 hours. The reaction mixture was concentrated under reduced pressure. To the residue, saturated brine was added and extracted with chloroform (120 ml×1, 60 ml×2). The organic layers were combined, and dried over anhydrous magnesium sulfate. After the inorganic salt was removed by filtration, the filtrate was concentrated under reduced pressure to give 19.08 g of a crude product. The crude product was subjected to column chromatography (hexane: ethyl acetate=2:1 to 1:1) to give 3.008 g of 1-[2-(2,4,6-triethylphenyl)-2-oxoacetyl]-1-methylhydrazine ((12-2)-(11)-40).

Provenance & Evidence