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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1348549Generated: October 29, 2026

Hydrochloric Acid → HCID 178432390, compound

https://huagongshe.com/reaction/1348549

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
Reactant1,5-Diazabicyclo(4.3.0)non-5-eneHCID 76349—
Reactant1H-Imidazol-2-amine hydrochlorideHCID 12211238—
ReactantEthyl (2-chloro-6-fluorophenyl)acetoacetateHCID 63022492—
SolventChloroformHCID 6212—
SolventDimethylformamideHCID 6228—
ProductHCID 178432390HCID 178432390—

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 1.29 g of ethyl (2-chloro-6-fluorophenyl)acetoacetate, 0.60 g of aminoimidazole hydrochloride, 1.24 g of 1,5-diazabicyclo[4.3.0]-5-nonene (DBN) and 5 ml of N,N-dimethylformamide was heated at 100° C. for 14 hours. The reaction mixture was allowed to cool, and chloroform and water were added thereto. To the separated water layer, conc. hydrochloric acid was added and the precipitate was filtered, which was followed to subject to silica gel chromatography to give 0.16 g of 5-hydroxy-6-(2-chloro-6-fluorophenyl)-7-methylimidazo[1,2-a]pyrimidine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07211545B2
Source datasetuspto-grants-2007_05
ORD IDord-7054545e715948659e3fcd2f805a7e49
Source noteuspto-grants-2007_05