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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1514004Generated: October 26, 2026

Hydrazine hydrate (1:1) → m-Bromobenzohydrazide

https://huagongshe.com/reaction/1514004

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantEthyl 3-bromobenzoateHCID 90488—
SolventEthanolHCID 702—
Productm-BromobenzohydrazideHCID 52094186%

Reaction Steps

After 10 grams (44 mmol) of ethyl-3-bromobenzoate were placed into a 200 mL, three-neck flask, 50 mL of ethanol was added thereto and the mixture was stirred; 12 mL of hydrazine monohydrate was added, this mixture was stirred at 78° C. for 5 hours, and the contents of the flask were reacted together. After the reaction was completed, a solid was precipitated out with the addition of water to the reaction solution. The precipitate solid was removed by suction filtration. With the suction-filtered solid being placed into approximately 500 mL of water and washed and a solid removed by suction filtration, 8.1 grams of a white-colored solid, which was the objective of the synthesis process, were obtained at a yield of 86%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08221904B2
Source datasetuspto-grants-2012_07
ORD IDord-c3be112600ce4a58aee544efac0496bb
Source noteuspto-grants-2012_07