Hydrazine → 1-benzyl-3-methyl-1H-pyrazol-5-amine

Participants

Reaction Steps

Synthesized using the procedure for 22 except benzyl hydrazine dihydrochloride was used as the hydrazine. After the reaction mixture was stopped and cooled to room temperature, solid precipitated which was filtered off and dried in vacuum oven to provide the title compound (3.6 g, 98%) as a white solid. 1H NMR (400 MHz, DMSO-d6) δ 7.40-7.34 (m, 2H), 7.34-7.27 (m, 3H), 5.57 (s, 1H), 5.35 (s, 2H), 2.18 (s, 3H). 13C NMR (100 MHz, CDCl3) δ 151.48, 146.65, 135.16, 129.19, 128.61, 128.00, 91.19, 49.13, 11.44.

Provenance & Evidence