Hydrazine → 5-(4-Chlorophenyl)-2-hydrazinopyridine

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Reaction Steps

A mixture of 21.1 g. of 2-chloro-5-(4-chlorophenyl)-pyridine and 19.5 g. of 95% hydrazine in 200 ml. of pyridine is heated at reflux temperature for 48 hours. The reaction mixture is cooled, poured into an ice-water mixture and filtered. The solid is collected, washed with water and air dried to yield 17.0 g. of the product of the Example as a tan solid.

Provenance & Evidence