5,6-Dimethyl-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione → HCID 54268221, compound

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Reaction Steps

A mixture of 4,5-dimethyl-4-cyclohexene-1,2-dicarboxylic anhydride (10 g; 0.0555 mol), platinum dioxide (150 mg) and tetrahydrofuran (100 ml) was hydrogenated at room temperature for 8 hours, followed by removal of insoluble materials by filtration. The filtrate was concentrated under reduced pressure to give the objective compound quantitatively. IR νmaxfilm (cm-1): 1860, 1760.

Provenance & Evidence