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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 650309Generated: October 29, 2026

Indene → 4-(1H-Inden-2-yl)aniline

https://huagongshe.com/reaction/650309

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIndeneHCID 7219—
Reactant4-IodoanilineHCID 10893—
Catalystpalladium(II) acetateHCID 167845—
SolventTriethylamineHCID 8471—
Product4-(1H-Inden-2-yl)anilineHCID 21714955—

Reaction Steps

20 ml of triethylamine, 2.2 g (20 mmol) of indene, 4.38 g (20 mmol) of para-amino-iodo-benzene and 0.134 g (0.6 mmol) of Pd(OAc)2 were stirred under reflux for 10 h. After that all triethylamine was removed under reduced pressure. The residue was treated with 80 ml of 15% HCl. Forming precipitate was separated and washed with dichloromethane. The resulting substance was treated with the mixture 50 ml of dichloromethane and 50 ml of 5% KOH in water. Organic layer was separated, washed twice with water, filtered and dried over Na2SO4. Dichloromethane was removed and the residue was recrystallized from 20 ml of EtOH. The yield of product was 21%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06271411B1
Source datasetuspto-grants-2001_08
ORD IDord-c008d2c1833d47bba2fa66c6096c6460
Source noteuspto-grants-2001_08