Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1823259Generated: October 31, 2026

Hydrochloric Acid → HCID 86594064, compound

https://huagongshe.com/reaction/1823259

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiethyl MalonateHCID 7761—
ReactantSodium hydrideHCID 24758—
Reactant2-Bromo-1,5-difluoro-3-methoxybenzeneHCID 22172577—
Catalystcopper(I) bromideHCID 24593—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 86594064HCID 8659406458.2%

Reaction Conditions

Temperature60 °C

Reaction Steps

Diethyl malonate (0.49 mol) was added to a mixture of sodium hydride (0.51 mol) and 1,4-dioxane (140 ml) at 60° C. within 2 hours. The mixture was stirred for 10 minutes at 60° C. and copper (I) bromide (0.05 mol) was added. After 15 minutes, a mixture of 2-methoxy-4,6-difluorobromobenzene (0.25 mol) and 1,4-dioxane (10 ml) was added. The reaction mixture was stirred at about 100° C. for about 15 hours. After cooling to about 15 to 20° C. 35 ml of 12N hydrochloric acid were added. The precipitate was filtered off. The filtrate was extracted with diethyl ether. The organic phase was separated, dried and filtered. The filtrate was evaporated to yield 44 g of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07038047B2
Source datasetuspto-grants-2006_05
ORD IDord-9ca3d1e692f74b87b003965e2c73838b
Source noteuspto-grants-2006_05