Sulfuric Acid → HCID 12011882, compound

Participants

Reaction Steps

1.04 g (3.00) mmoles) of 3-bromo-1 -(4'-methoxybenzyl)-5-methylamino-4-nitropyrazole are hydrogenated for 2 hours according to General Directions A. 0.30 g (2.80 mmoles) of concentrated sulfuric acid (97%) are added. After reduction, 0.86 g (87 percent of theory) of 4-amino-1-(4'-methoxybenzyl)-5-methylaminopyrazole hydrosulfate are obtained in the form of an oil.

Provenance & Evidence