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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 905274Generated: October 30, 2026

p-Toluenesulfonic acid → 2-Tetrahydropyranyl 4-(8-cyclohexyloctylamino)benzoate

https://huagongshe.com/reaction/905274

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
Reactant3,4-dihydro-2H-pyranHCID 8080—
Reactant4-(8-Cyclohexyloctylamino)benzoic acidHCID 20475772—
SolventTolueneHCID 1140—
Product2-Tetrahydropyranyl 4-(8-cyclohexyloctylamino)benzoateHCID 20475834—

Reaction Steps

A mixture of 7 g. 4-(8-cyclohexyloctylamino)benzoic acid, 2 g. 2,3-dihydropyran and 100 mg. anhydrous p-toluenesulfonic acid in 50 ml. toluene is stirred at room temperature for 20 hours. The solution is washed with saturated sodium bicarbonate, dried, and condensed. The residue is crystallized from methylcyclohexane to white crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04423051
Source datasetuspto-grants-1983_12
ORD IDord-82e37ac1a3fc4c2c9dac6c33089a34dd
Source noteuspto-grants-1983_12