Sodium hydride → 6-Bromo-3',4'-dihydro-1'H-spiro[indene-2,2'-naphthalen]-1(3H)-one

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Reaction Steps

A mixture of 6-bromo-indan-1-one (3.57 g, 17 mmol), 1-(2-bromo-ethyl)-2-bromomethyl-benzene (4.7 g, 17 mmol) in THF (50 mL) was added NaH (816 mg, 34 mmol) at room temperature, the mixture was refluxed for 2 hours. The mixture was quenched with water, concentrated, then extracted with DCM, washed with brine, dried over Na2SO4, concentrated to 6-bromo-3′,4′-dihydro-1′H-spiro[indene-2,2′-naphthalen]-1(3H)-one (1.8 g, 33%).

Provenance & Evidence