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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 728999Generated: November 3, 2026

Cysteamine → Hexane isopropyl acetate

https://huagongshe.com/reaction/728999

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCysteamineHCID 6058—
Reactantp-Toluenesulfonic acidHCID 6101—
Reactant4-[5-(3-Methyl-5-isoxazolyl)pentyloxy]benzaldehydeHCID 6483425—
SolventTolueneHCID 1140—
ProductHexane isopropyl acetateHCID 22034165—

Reaction Steps

A solution of 4.00 g of 4-[5-(3-methyl-5-isoxazolyl)pentyloxy]benzaldehyde (part a above), 1.22 g of 2-aminoethanethiol and a trace of p-toluenesulfonic acid in 30 ml of toluene was heated at reflux for 2 hours using a Dean-Stark trap. The product was isolated and recrystallizedfrom isopropyl acetate-hexane to give 1.93 g of the above-indicated product, m.p. 82°-84° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05051437
Source datasetuspto-grants-1991_09
ORD IDord-3da514e9c10c487d9f52cc741bdd9bb1
Source noteuspto-grants-1991_09