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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1983845Generated: November 1, 2026

Water → HCID 54752976, compound

https://huagongshe.com/reaction/1983845

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant1,8-Diazabicyclo(5.4.0)undec-7-eneHCID 81184—
Reactant2-Ethylbutanedioyl dichlorideHCID 21864608—
ReactantHCID 23031791HCID 23031791—
SolventAcetonitrileHCID 6342—
ProductHCID 54752976HCID 5475297676.7%

Reaction Conditions

Temperature30 °C

Reaction Steps

DBU (211 ml) was added to a solution of (3-bromophenyl) (4-chloro-2-hydroxy-5-methylphenyl)methanone (170 g) in acetonitrile (510 ml) at 25 to 30° C. Then, a solution of ethyl succinic chloride (146 g) in acetonitrile (340 ml) was added dropwise over 30 minutes at 25 to 40° C. After the drop was completed, the mixture was stirred at 30° C. for 1 hour. Water (94 ml) was added dropwise keeping the reaction solution at 25 to 30° C. After the mixture was stirred at the same temperature for 1 hour, the resulting crystals were filtered, and washed with a mixture of acetonitrile and water (9/1, 170 ml) four times, dried under reduced pressure to obtain the title compound (174 g, yield 76.7%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07541478B2
Source datasetuspto-grants-2009_06
ORD IDord-3e8f19f522cd4c56b4b8ec5deeab5cb2
Source noteuspto-grants-2009_06