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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 274160Generated: October 25, 2026

p-Toluenesulfonic acid → Difluoromethoxy-(5-propyl-1,3-dioxan-2-yl)-benzene

https://huagongshe.com/reaction/274160

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
Reactantp-(Difluoromethoxy)benzaldehydeHCID 2736986—
ReactantPentane-3,3-diolHCID 21837878—
SolventTolueneHCID 1140—
ProductDifluoromethoxy-(5-propyl-1,3-dioxan-2-yl)-benzeneHCID 19436343—

Reaction Steps

17.2 g of p-difluoromethoxybenzaldehyde (commercially available from Fluorochem. Ltd. (GB)), 10.4 g of ethylpropanediol and 0.2 g of p-TsOH are heated to boiling for 2 hours in 100 ml of toluene. After evaporation of the solvent, the mixture is worked up as usual.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05389292
Source datasetuspto-grants-1995_02
ORD IDord-de31af46edd74e718c7290b4cc720491
Source noteuspto-grants-1995_02