Benzyl 2-(triphenyl-lambda5-phosphanylidene)acetate → Phenylmethyl 4-(2,3-dihydro-1H-inden-2-yl)-2-butenoate

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Reaction Steps

3.97 g (24.8 mmol) of (indan-2-yl)acetaldehyde was dissolved in 50 ml of methylene chloride, to which was added 12.2 g (29.8 mmol) of benzyloxycarbonylmethylene triphenyl phosphorane and stirred for 1.5 hours. The solvent was distilled off and the residue was purified by silica gel column chromatography (ethyl acetate:hexane=1:20) to obtain 6.45 g colorless oil. Yield: 89%

Provenance & Evidence