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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1089822Generated: October 31, 2026

Ethyl Acetate → 4-Methylfluorene

https://huagongshe.com/reaction/1089822

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactant4-(hydroxymethyl)-9h-fluoren-9-olHCID 272052—
ReactantHCID 178418361HCID 178418361—
CatalystPalladiumHCID 23938—
SolventAcetic AcidHCID 176—
Product4-MethylfluoreneHCID 1525677.3%

Reaction Steps

A solution of 9-hydroxyfluoren-4-methanol (2.6 g, 12.2 mmol) in 1.1 EtOAc:AcOH was charged with catalytic amount of 10% palladium on charcoal. The mixture was treated with hydrogen under 1600 psi, at room temperature for three days. The catalyst was removed and the solvent was evaporated under reduced pressure. Recrystalyzation from MeOH afforded 1.7 g (77.0%) of the product as a light yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05079260
Source datasetuspto-grants-1992_01
ORD IDord-b24e7e79fc1b4f088fdc4c3c513258a6
Source noteuspto-grants-1992_01