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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 61333Generated: October 24, 2026

p-Toluenesulfonic acid → 2,5,5-Trimethyl-2-propyl-1,3-dioxane

https://huagongshe.com/en/reaction/61333

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
Reactant2-PentanoneHCID 7895—
ReactantNeopentyl glycolHCID 31344—
SolventTolueneHCID 1140—
Product2,5,5-Trimethyl-2-propyl-1,3-dioxaneHCID 79462—

Reaction Steps

2-Pentanone, 2,2-dimethyl-propane-1,3-diol, and a catalytic amount of p-toluenesulfonic acid (PTSA) were refluxed in toluene to provide a crude product. Distillation provided the product 2,5,5-trimethyl-2-propyl-[1,3]dioxane.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09441185B2
Source datasetuspto-grants-2016_09
ORD IDord-e5d10747c1d04c2695967de07f2120ed
Source noteuspto-grants-2016_09