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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1464872Generated: November 1, 2026

Methyl 4-bromobenzoate → 4-Bromobenzohydrazide

https://huagongshe.com/reaction/1464872

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl 4-bromobenzoateHCID 12081—
ReactantHydrazine hydrate (1:1)HCID 24654—
SolventEthanolHCID 702—
Product4-BromobenzohydrazideHCID 2221967%

Reaction Steps

First, 3.0 g (13.9 mmol) of methyl-4-bromobenzoate was put in a 100-mL three-neck flask, 10 mL of ethanol was added therein, and the mixture was stirred. Thereafter, 4.0 mL of hydrazine monohydrate was added therein, and the mixture was heated and stirred at 78° C. for 5 hours. A solid obtained washed with water and collected by suction filtration; thus, 2.0 g of a white solid of objective 4-bromobenzohydrazide was obtained (yield: 67%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08999520B2
Source datasetuspto-grants-2015_04
ORD IDord-1ce7fc86c9c448c3ba29e6f7e685bb55
Source noteuspto-grants-2015_04