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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1732595Generated: November 1, 2026

Water → HCID 20258536, compound

https://huagongshe.com/reaction/1732595

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium CarbonateHCID 11430—
Reactant4-Hydroxy-4'-chlorobenzophenoneHCID 123504—
ReactantMethyl 5-chloro-2,2-dimethylpentanoateHCID 13913709—
SolventDimethylformamideHCID 6228—
ProductHCID 20258536HCID 20258536—

Reaction Steps

116 g (0.5 mole) of 4'-chloro-4-hydroxybenzophenone, 84 g (0.6 mole) of potassium carbonate and 500 cm3 of DMF are placed in a 1 liter flask. The mixture is brought to reflux and 90 g (0.5 mole) of methyl 5-chloro-2,2-dimethylpentanoate in 200 cm3 of DMF are then added from a dropping funnel. Reflux is continued for 3 hours. The mixture is then cooled and poured into 1 liter of water, so that the desired product precipitates. The precipitate is extracted with diethyl ether, washed with aqueous soda, then with water, dried and decolourised, and the solvent is evaporated under vacuum. 160 g of a white solid are obtained, which are recrystallised from diisopropyl ether. 130 g of the desired product are obtained, m.pt. 64° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04238492
Source datasetuspto-grants-1980_12
ORD IDord-43ad9106f6a848e2a1e40347c436a830
Source noteuspto-grants-1980_12