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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1726260Generated: November 2, 2026

Catechol → HCID 68969824, compound

https://huagongshe.com/reaction/1726260

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCatecholHCID 289—
ReactantTolueneHCID 1140—
Reactantp-Toluenesulfonic acid monohydrateHCID 521998—
Reactanttert-Butyl 4-(4-chlorobenzoyl)piperidine-1-carboxylateHCID 10519988—
SolventO-XyleneHCID 7237—
ProductHCID 68969824HCID 6896982450.3%

Reaction Steps

The above ketone (450 mg, 1.39 mmol), catechol (614 mg, 5.58 mmol), p-TsOH.H2O (529 mg, 2.78 mmol), toluene (5 mL) and xylene (15 mL) were heated at 185° C. overnight using a Dean-Stark apparatus to remove water. Work-up and purification afforded 4-[2-(4-chloro-phenyl)-benzo[1,3]dioxol-2-yl]-piperidine as a pink oil (221 mg, 50%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07491735B2
Source datasetuspto-grants-2009_02
ORD IDord-51449001a4424fef9a9cbce0090b02f1
Source noteuspto-grants-2009_02