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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 903413Generated: October 25, 2026

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

https://huagongshe.com/reaction/903413

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. of 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 numberUS04227014
Source datasetuspto-grants-1980_10
ORD IDord-a57c2055ecb24db0ba45ab2e4e5bf2ae
Source noteuspto-grants-1980_10