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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 720250Generated: October 29, 2026

alpha-Bromo-o-chlorotoluene → 2-Chlorobenzylhydrazine

https://huagongshe.com/reaction/720250

Reaction equation

Participants

RoleNameHCIDCharge
Reactantalpha-Bromo-o-chlorotolueneHCID 11905—
ReactantHydrazine hydrate (1:1)HCID 24654—
SolventMethanolHCID 887—
Product2-ChlorobenzylhydrazineHCID 417064—

Reaction Steps

2.74 g (54.75 mmol) of hydrazine hydrate are introduced into 10 ml of methanol, and a solution of 3.00 g (14.60 mmol) of 2-chlorobenzyl bromide in 5 ml of methanol is added at RT. The temperature rises to 35–40° C. during this, and the mixture is then stirred at RT for 3 hours. The solvent is removed in vacuo, and the residue is taken up in 100 ml of diethyl ether, dried over magnesium sulfate and filtered off.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07135474B2
Source datasetuspto-grants-2006_11
ORD IDord-42d521a63d5e493a8bdbdfb893b81f8e
Source noteuspto-grants-2006_11