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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1422187Generated: November 1, 2026

Methanol → HCID 56985609, compound

https://huagongshe.com/reaction/1422187

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
Reactant1,4-Dihydroxy-2,2,6,6-tetramethylpiperidineHCID 5395—
ReactantDimethyl SuccinateHCID 7820—
CatalystTitanium isopropoxideHCID 11026—
SolventHeptaneHCID 8900—
ProductHCID 56985609HCID 56985609—

Reaction Steps

A solution of 6.0 g (35 mmol) of 1-oxyl-2,2,6,6-tetramethyl-4-hydroxypiperidine and 11.4 g (78 mmol) dimethyl succinate in 60 mL of heptane is brought to reflux. 0.05 mL of tetraisopropyl orthotitanate is added and the reaction mixture is refluxed for 16 hours while the evolved methanol is trapped in a Dean-Stark trap. The reaction mixture is then concentrated and the title compound is isolated as a red oil after column chromatography and melts at 76° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06080864
Source datasetuspto-grants-2000_06
ORD IDord-b61bf76276bd44a68601b0f0d0d06995
Source noteuspto-grants-2000_06