Hydrazine → 1-Benzylphenylhydrazine

Participants

Reaction Conditions

Reaction Steps

1-benzyl-1-phenylhydrazine was prepared in the same manner as Synthesis Example 1 except for using 208.6 g (1.14 mol) of N-benzylaniline in place of diphenylamine. Said hydrazine was dissolved in a mixture of 1 l of ethanol and 50 ml of acetic acid, and 286 g (1.14 mol) of 2-formyl-4,5-diphenyloxazoline, represented by the formula ##STR9## was added. The resulting mixture was cooled to 10° C., and 250 g (3.82 mol) of zinc metal was added with caution not to raise the temperature over 20° C. After completion of the reaction, the reaction mixture was filtered and the filtrate was poured into water, thus giving a yellow precipitate. Recrystallization of the precipitate from a methyl ethyl ketone-ethanol (1:1) mixture gave 87.5 g of yellow crystals (yield 17.8% based on the amine).

Provenance & Evidence