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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1348546Generated: October 31, 2026

1,5-Diazabicyclo(4.3.0)non-5-ene → HCID 178420741, compound

https://huagongshe.com/reaction/1348546

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,5-Diazabicyclo(4.3.0)non-5-eneHCID 76349—
ReactantDiethyl 2-(2-chloro-6-fluorophenyl)malonateHCID 2782658—
Reactant1H-Imidazol-2-amine hydrochlorideHCID 12211238—
SolventDimethylformamideHCID 6228—
ProductHCID 178420741HCID 17842074144.5%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 2.89 g of diethyl (2-chloro-6-fluorophenyl)malonate, 1.20 g of aminoimidazole hydrochloride, 2.48 g of 1,5-diazabicyclo[4.3.0]-5-nonene (DBN) and 10 ml of N,N-dimethylformamide (DMF) was heated at 100° C. for 4 hours. The reaction mixture was allowed to cool, filtered the precipitate and dried to give 1.80 g of 5,7-dihydroxy-6-(2-chloro-6-fluorophenyl)imidazo[1,2-a]pyrimidine DBN salt.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07211545B2
Source datasetuspto-grants-2007_05
ORD IDord-f483e3bf53794d85b2583432dbceba08
Source noteuspto-grants-2007_05