1-Butanol → HCID 11855746, compound

Participants

Reaction Conditions

Reaction Steps

3-Fluoro-4-(2,6,6-trimethyl-4-oxo-4,5,6,7-tetrahydro-indol-1-yl)-benzonitrile (148 mg, 0.5 mmol) and 1-butanol (185.3 mg, 2.5 mmol) were dissolved in anhydrous DMF (1.5 mL). To this solution was added NaH (24.0 mg, 1 mmol). After purging the reaction vessel (Personal Chemistry Microwave Vial) with nitrogen, the reaction vessel was sealed and heated to 100° C. for 300 seconds in an Emyrs Optimizer Microwave. After cooling, the reaction mixture was diluted with H2O and extracted into EtOAc (×2). The combined organics were washed with brine (×2), dried over Na2SO4, and concentrated to dryness. The yellow residue (3-Butoxy-4-(2,6,6-trimethyl-4-oxo-4,5,6,7-tetrahydro-indol-1-yl)-benzonitrile) was then dissolved in EtOH (3 mL) and treated with 1 mL of 1 N NaOH (aq) and a catalytic amount of H2O2. Quantitative conversion of the nitrile to the amide occurred after heating this solution at 65° C. for 3 hours. Column chromatography on silica eluting with EtOAc gave the product as a white solid (119.9 mg, 65%). (100% clean by LC/MS, product M+H=369.2).

Provenance & Evidence