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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1252987Generated: November 1, 2026

1,3-Cyclohexadiene → 2,3-Dihydro-4,7-dimethoxy-1H-indene

https://huagongshe.com/reaction/1252987

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,3-CyclohexadieneHCID 11605—
Reactant4,7-dimethoxy-2,3-dihydro-1H-inden-1-oneHCID 606012—
SolventTolueneHCID 1140—
Product2,3-Dihydro-4,7-dimethoxy-1H-indeneHCID 12654133—

Reaction Steps

A mixture of intermediate A (1 g, 6 mmole), 1,3-cyclohexadiene (0.6 ml, 6 mmole), and toluene (15 ml) was refluxed about 15 hours under a nitrogen atmosphere. The solvent was removed under reduced pressure to yield 1.5 g of crude Diels-Alder adduct (intermediate B), which was used directly in the next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04746607
Source datasetuspto-grants-1988_05
ORD IDord-22717950577c41cf82522d615a371747
Source noteuspto-grants-1988_05