反应详情

A mixture of 1.67 g of 5-methyl-3-(o-nitrobenzyl)-1,2,4-triazole, 42 mg of 10% palladium on charcoal and 15 ml of ethanol is hydrogenated at 3 atmospheres pressure for 4 hours, filtered, decolorized, evaporated to a small volume and diluted with ether to give 3-(o-aminobenzyl)-5-methyl-1,2,4-triazole, m.p. 143°-145°.

1. filtrationfiltered
2. customevaporated to a small volume
3. additiondiluted with ether