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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 78605Generated: October 30, 2026

Methanol → 3-Amino-6-(3-pyridyl)pyrazine-2-carbohydrazide

https://huagongshe.com/reaction/78605

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantHydrazineHCID 9321—
ReactantMethyl 3-amino-6-(3-pyridyl)pyrazine-2-carboxylateHCID 59471788—
SolventWaterHCID 962—
Product3-Amino-6-(3-pyridyl)pyrazine-2-carbohydrazideHCID 5947240158.5%

Reaction Steps

Methyl 3-amino-6-(3-pyridyl)pyrazine-2-carboxylate (2 g, 8.687 mmol) was heated in hydrazine (1.392 g, 1.363 mL, 43.43 mmol) with a minimal amount of MeOH (5 mL) added at 80° C. for 2 hours. The reaction was treated with water and the product collected by filtration, washed with methanol and dried to give the desired product as a brown solid (1.17 g, 58% Yield). 1H NMR (400.0 MHz, DMSO) d 7.43 (1H, m), 7.47 (2H, br s), 8.54 (2H, m), 8.90 (1H, s), 9.38 (1H, m), 10.16 (1H, br s); MS (ES+) 231.96

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08841308B2
Source datasetuspto-grants-2014_09
ORD IDord-402fca6998994a0ba1f59af19925220c
Source noteuspto-grants-2014_09