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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 371186Generated: October 31, 2026

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

https://huagongshe.com/reaction/371186

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

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 numberUS04529806
Source datasetuspto-grants-1985_07
ORD IDord-77703c370b164b45b7970abd384ad3c4
Source noteuspto-grants-1985_07