Water → 1H-Inden-1-one, 2,3-dihydro-2-(hydroxymethylene)-

Beteiligte Stoffe

Reaktionsschritte

1-Indanone (Aldrich) (5.0 g, 37.8 mmol) in toluene (25 cm3) was added dropwise, to a stirring solution of sodium hydride (Aldrich) (1.8 g, 45.4 mmol 60% w/w dispersion in oil), ethyl formate (Aldrich) (5.6 g, 75.6 mmol) and toluene (50 cm3), under nitrogen, at 0° C. The reaction was stirred for 17 hours before adding water (50 cm3). The organic layer was washed with water and 2M NaOH. The combined aqueous extracts were acidified with 10 M HCl and the precipitate extracted with dichloromethane. The combined organic extracts were dried (Na2SO4), filtered and concentrated in vacuo to afford a yellow-orange solid. An analytically pure sample was obtained by Kugelrohr distillation (0.01 mmHg/100° C.) to give a yellow solid m.p. 110-112° C.

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