Pentachloropyridine → 2,3,5,6-Tetrachloropyridine

Participants

Reaction Steps

On reaction of 12.76 g (0.05 mol) of pentachloropyridine with 4.1 g (0.063 gram atom) of zinc dust and 11.6 g (0.08 mol) of ammonium sulfate using the method described in Example 1, there is obtained 10.1 g (92% of theory) of crude 2,3,5,6-tetrachloropyridine, which contains, according to gas-chromatographical analysis, 92% of 2,3,5,6-tetrachloropyridine, 3.3% of 2,3,5-trichloropyridine, 1.3% of 2,3,6-trichloropyridine and 2.9% of pentachloropyridine.

Provenance & Evidence