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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1903577Generated: October 30, 2026

2-Chloro-4,5-dihydroimidazole → HCID 13255561, compound

https://huagongshe.com/reaction/1903577

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Chloro-4,5-dihydroimidazoleHCID 236236—
Reactant1-methyl-1H-indazol-5-amineHCID 2768032—
SolventDiethyl EtherHCID 3283—
SolventTetrahydrofuranHCID 8028—
ProductHCID 13255561HCID 13255561—

Reaction Steps

5-amino-1-methyl-indazole is dissolved in absolute THF and treated with a solution of an equimolar quantity of 2-chloro-imidazoline in ether. The mixture is stirred for 48 hours in a darkened, sealed flask at room temperature. The precipitated reaction product is separated and recrystallized from ethanol. The purified, white, crystallized hydrochloride has a melting point from 240° to 241° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04436913
Source datasetuspto-grants-1984_03
ORD IDord-038779f0258847959f2af2be5eaf2925
Source noteuspto-grants-1984_03