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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1881547Generated: November 2, 2026

Hydrazine hydrate (1:1) → Methyl 2-fluoro-4-hydrazinocarbonylbenzoate

https://huagongshe.com/reaction/1881547

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant1-HydroxybenzotriazoleHCID 75771—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Reactant1-Methyl 2-fluoro-1,4-benzenedicarboxylateHCID 59295087—
ProductMethyl 2-fluoro-4-hydrazinocarbonylbenzoateHCID 6705025721.5%

Reaction Steps

From 3-fluoro-4-methoxycarbonylbenzoic acid (198 mg, 1 mmol), 1-hydroxybenzotriazole (HOBt) (135 mg, 1 mmol), 1-(3-(dimethylamino)propyl)-3-ethylcarbodiimide hydrochloride (WSC) (249 mg, 1.3 mmol) and hydrazine monohydrate (73 μL, 1.5 mmol), 45.6 mg of the desired product was obtained in the same manner as in Reference Synthesis Example 50 as a white solid (yield 22%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08318796B2
Source datasetuspto-grants-2012_11
ORD IDord-0259b04eb08c4c2ba07e362de67b12af
Source noteuspto-grants-2012_11