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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1248430Generated: October 29, 2026

Citric Acid → HCID 20277903, compound

https://huagongshe.com/reaction/1248430

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
ReactantEthanolamineHCID 700—
ReactantMethanesulfonyl chlorideHCID 31297—
SolventPyridineHCID 1049—
ProductHCID 20277903HCID 20277903—

Reaction Steps

A stirred solution of ethanolamine (9.15 g) in pyridine (40 ml) was cooled to 0° C. in an ice-salt bath, and mesylchloride (23 ml) was added dropwise at such a rate that the temperature did not rise above 5° C. When the addition was complete the mixture was allowed to rise to room temperature for 1/2 hour. The mixture was poured into citric acid solution and continuously extracted with ehtylacetate for 11/2 hours. The solution was dried over magnesium sulphate and evaporated to give 23.7 g of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04524073
Source datasetuspto-grants-1985_06
ORD IDord-83b90bc87aa3425394509dced48f735b
Source noteuspto-grants-1985_06