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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1936739Generated: October 28, 2026

2-Hydrazino-delta-2-imidazoline hydrobromide → HCID 88183062, compound

https://huagongshe.com/reaction/1936739

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Hydrazino-delta-2-imidazoline hydrobromideHCID 3085099—
ReactantHCID 86758080HCID 86758080—
Solvent1-ButanolHCID 263—
ProductHCID 88183062HCID 88183062109.9%

Reaction Conditions

Temperature110 °C

Reaction Steps

The mixture constituted by 430 mg of the ketone prepared in Stage A, 549 mg of 4,5-dihydro-1H-imidazol-2-yl-hydrazine hydrobromide in 20 ml of butanol is heated at the temperature of 110° C. for 2 hours then evaporated under reduced pressure until 1.1 g of crude product is obtained which is purified by chromatography (Kieselgel 60, 40-63 μm) eluting with a dichloromethane/methanol mixture 90/10. 500 mg of expected product is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06391904B1
Source datasetuspto-grants-2002_05
ORD IDord-c3cb8f736dee4a9d85dfaab43c6507fb
Source noteuspto-grants-2002_05