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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1590931Generated: October 30, 2026

Diethyl butylmalonate → HCID 54237698, compound

https://huagongshe.com/reaction/1590931

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl butylmalonateHCID 67244—
Reactant1-Methoxy-2,2,6,6-tetramethyl-piperidin-4-olHCID 10997770—
CatalystLithium amideHCID 24532—
SolventO-XyleneHCID 7237—
ProductHCID 54237698HCID 5423769898.4%

Reaction Steps

A mixture of diethyl n-butylmalonate (11.55 g, 53.4 mmol), 4-hydroxy-1-methoxy-2,2,6,6-tetramethylpiperidine (20.0 g, 107 mmol), lithium amide (120 mg), and xylene (100 ml) is distilled until the distillate reaches a constant temperature of 137° C. Xylene is evaporated and the residue is dissolved in heptane. Acetic acid is added and the resulting precipitate is filtered. The filtrate is concentrated to obtain 26.2 g (98% yield) of a light yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05204473
Source datasetuspto-grants-1993_04
ORD IDord-20b921b2568c4c88ab22a6e9bf4f0c09
Source noteuspto-grants-1993_04