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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1265399Generated: November 2, 2026

Methanol → HCID 11287403, compound

https://huagongshe.com/reaction/1265399

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantSuccinic anhydrideHCID 7922—
ReactantCalcium CarbonateHCID 10112—
ReactantMethyl LactateHCID 11040—
CatalystSulfuric AcidHCID 1118—
SolventChloroformHCID 6212—
ProductHCID 11287403HCID 11287403—

Reaction Conditions

Temperature70 °C

Reaction Steps

Methyl lactate (14 mL, 0.147 moles), succinic anhydride (14.76 g, 0.147 moles), and 2 drops of concentrated sulfuric acid were mixed and heated to 70° C. for five hours. An NMR spectrum of a sample of the cooled reaction mixture showed quantitative conversion to succinic acid (ethyl-1-methoxycarbonyl) ester. Methanol (30 mL) and chloroform (20 mL) were added and heated to reflux in a soxhlet extractor containing silica gel in the receiver. The solution was refluxed for three hours, neutralized with CaCO3, filtered, and the volatile solvents removed under vacuum. The isolated yield of (i) was 29.56 g (98.5%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06545175B1
Source datasetuspto-grants-2003_04
ORD IDord-7406d3e57b87463e9954cf6936325c90
Source noteuspto-grants-2003_04