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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1440962Generated: October 30, 2026

Diisopropylethylamine → 4,6-Dimethoxy-2-(alpha-fluorobenzyl) pyrimidine

https://huagongshe.com/reaction/1440962

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantDimethyl malonimidate dihydrochlorideHCID 12896693—
Reactant2-Fluoro-2-phenylacetyl chlorideHCID 14949528—
SolventDichloromethaneHCID 6344—
Product4,6-Dimethoxy-2-(alpha-fluorobenzyl) pyrimidineHCID 54101218103.4%

Reaction Steps

Dimethyl malonimidate dihydrochloride (11.0 g) was suspended in dichloromethane (100 ml) at -40° C. Ethyl diisopropylamine (38.9 ml) was added dropwise over 15 minutes at -40° C., followed by 2-fluoro-2-phenylacetyl chloride (11.0 g) in dichloromethane (15 ml) over 10 minutes at -40° C. The reaction mixture was allowed to warm to room temperature and stand overnight. It was then diluted further with dichloromethane, washed with ammonium chloride solution, then with water, and was dried over magnesium sulfate. The dichloromethane solution was evaporated to dryness to give 13.9 g of the desired product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05502028
Source datasetuspto-grants-1996_03
ORD IDord-6138cea4710c432493891253a750fc80
Source noteuspto-grants-1996_03