Water → HCID 9949118, compound

Participants

Reaction Steps

Spiro[3,3-diphenyl-2,3-dihydro(1H)indene-1,3,-2'-cyanooxirane] (Compound 5) and 2-cyanomethyl-3,3-diphenylindanone (Compound 9) were synthesized as follows: 3,3-diphenylindanone (Compound 2), 5.0 g (0.0176 mole) and 2.62 g (0.0229 mole) of potassium hydride were stirred at room temperature in 40 mL of tetrahydrofuran. After the gas evolution subsided (approx. 45 min), 1.5 mL (0.0215 mole) of bromoacetonitrile was added. The dark red mixture was stirred for 1 hour and then 50 mL of water was added. The mixture was extracted three times with 75 mL of ethyl acetate. The combined organic extracts were concentrated in vacuo, loaded onto a silica gel column and eluted with 10% ethyl acetate in hexane. Three fractions were collected. After evaporation of the solvent, the first fraction yielded unreacted starting material (3.5 g). The second fraction yielded 0.49 g (9% yield) of spiro[3,3-diphenyl-2,3-dihydro(1H)indene-1,3'-2'-cyanooxirane] (Compound 5) as a white solid. The third fraction yielded 1.05 g (18% yield) of 2-cyanomethyl-3,3-diphenylindanone (Compound 9) as a yellow oil.

Provenance & Evidence