Sodium hydride → 3-Cyclopropyl-3-oxo-2-[(2'-nitrobiphen-4-yl)methyl]propanenitrile

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Reaction Steps

To a solution of 2.61 g (24.0 mmol) 3-cyclopropyl-3-oxopropanenitrile in 150 mL DMSO was added 1.01 g (25.2 mmol) 60% NaH in oil. After 1 hour, 3.50 g (12.0 mmol) 4'-bromomethyl-2-nitrobiphenyl was added all at once to the solution. After 3 hours, the solution was poured into brine and extracted 3 times with ether. The combined organic material was dried over MgSO4, stripped of solvent in vacuo, and was chromatographed on silica gel under medium pressure using 3/40/57 EtOAc/CH2Cl2/hexanes to give 1.29 g (34% yield) of the title compound as a yellow glass. Rf 0.13 in 3/40/57 EtOAc/CH2Cl2/hexanes, visualized by UV and ammonium molybdate/ceric sulfate stain; Rf of the dialkylated material is 0.19 in the same solvent mixture.

Provenance & Evidence