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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 736494Generated: October 30, 2026

1-Indanone → Benzoic acid, 4-[(1,3-dihydro-1-oxo-2H-inden-2-ylidene)methyl]-

https://huagongshe.com/reaction/736494

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-IndanoneHCID 6735—
Reactant4-Formylbenzoic acidHCID 12088—
ReactantPotassium HydroxideHCID 14797—
SolventEthanolHCID 702—
ProductBenzoic acid, 4-[(1,3-dihydro-1-oxo-2H-inden-2-ylidene)methyl]-HCID 503308668.2%

Reaction Conditions

Temperature0 °C

Reaction Steps

To a suspension of indanone (2.00 g, 15.1 mmol) and 4-carboxybenzaldehyde (1.89 g, 12.6 mmol) in EtOH (10 ml) was added KOH (1.77 g, 31.5 mmol) at 0° C. The reaction mixture was stirred 30 min at 0° C. then at room temperature for 16 h. The solvent was evaporated and the residue was dissolved in water, acidified to pH 5 with HCl 1 M. The precipitate was filtered and rinsed with water to afford the title compound 273 (2.27 g, 57%) as a yellow solid. LPMS: 264.1 (Calc.); 265.0 (found).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07595343B2
Source datasetuspto-grants-2009_09
ORD IDord-4db5fac54b6c456f8645e05c705a45cc
Source noteuspto-grants-2009_09