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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2081573Generated: October 31, 2026

Pentanoic acid, 2-acetyl-, ethyl ester → HCID 178439771, compound

https://huagongshe.com/reaction/2081573

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPentanoic acid, 2-acetyl-, ethyl esterHCID 95398—
ReactantSodium ethoxideHCID 2723922—
ReactantTrifluoroacetamidineHCID 2776882—
SolventEthanolHCID 702—
ProductHCID 178439771HCID 178439771—

Reaction Steps

A mixture of ethyl 2-n-propylacetoacetate (0.5 mole), trifluoroacetamidine (0.67 mole) and sodium ethoxide (1 mole) in ethanol was heated at reflux temperature overnight and then evaporated to dryness. The residue was triturated in water and acidified with glacial acetic acid to yield the title compound. TLC, Silica gel (cyclohexane-ethyl acetate, 1:1) Rf 0.80 1H NMR (CDCl3): δ 0.95 (t,3H) 1.25 (t,3H) 1.57 (m,2H) 2.58 (q,2H) 2.70 (q,2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05185340
Source datasetuspto-grants-1993_02
ORD IDord-f6404edd30a74f508b421e758dd51573
Source noteuspto-grants-1993_02