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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1583832Generated: November 1, 2026

Water → HCID 20258536, compound

https://huagongshe.com/reaction/1583832

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 numberUS04554371
Source datasetuspto-grants-1985_11
ORD IDord-3a40efc2e5324d378eada4156838813b
Source noteuspto-grants-1985_11