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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2164358Generated: October 30, 2026

Benzene → Cyclopentanecarboxylic acid, 2-oxo-1-(3-oxobutyl)-, ethyl ester

https://huagongshe.com/reaction/2164358

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzeneHCID 241—
ReactantMethyl vinyl ketoneHCID 6570—
ReactantEthyl 2-oxocyclopentanecarboxylateHCID 69136—
SolventTriethylamineHCID 8471—
ProductCyclopentanecarboxylic acid, 2-oxo-1-(3-oxobutyl)-, ethyl esterHCID 11806371—

Reaction Steps

(B.) A mixture of 102.0 g of ethyl 2-oxocyclopentanecarboxylate, 300 ml of benzene, 67 ml of methyl vinyl ketone and 20 ml of triethylamine was allowed to stir magnetically at reflux for 2.5 hours. Concentration followed by Claisen distillation gave 128 g of product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04504304
Source datasetuspto-grants-1985_03
ORD IDord-7e7e18dd8c66408994898d44addb137e
Source noteuspto-grants-1985_03