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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1089840Generated: October 30, 2026

Methanol → 2,7-Dimethylfluorene

https://huagongshe.com/reaction/1089840

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantEthyl AcetateHCID 8857—
ReactantHCID 67719545HCID 67719545—
ReactantHCID 178418361HCID 178418361—
CatalystPalladium hydroxideHCID 9942167—
SolventAcetic AcidHCID 176—
SolventEthyl acetate hexaneHCID 21226206—
Product2,7-DimethylfluoreneHCID 10134789.5%

Reaction Steps

A mixture of 2,7-dimethylfluorenone (7.0 g, 32.8 mmol), methanol (100 mL), ethyl acetate (50 mL), acetic acid (20 mL) and palladium hydroxide (20% on carbon, water content 44.43%, 0.5g) was hydrogenated in a shaker at 26 psi of hydrogen for 4 hr. The reaction was monitored by TLC (silica, 10% ethyl acetate/hexane). The catalyst was filtered out and the solvents were removed in vacuum. Treatment of the residue with methanol afforded 5.7 g (89.3%) of 2,7-dimethylfluorene.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05079260
Source datasetuspto-grants-1992_01
ORD IDord-e0e4ca2bfae348a3a38398336ab1b897
Source noteuspto-grants-1992_01