Dichloromethane → HCID 23502786, compound

Participants

Reaction Steps

To a solution of 100 mg (0.207 mmol) N-(3,5-bis-trifluoromethyl-benzyl)-6-hydroxymethyl-N-methyl-4-o-tolyl-nicotinamide (Example 7) in 1 ml dichloromethane 0.03 ml (0.4 mmol) thionyl chloride were added at 0° C. The reaction mixture was allowed to warm to room temperature and stirred for 1 h. The solvent was evaporated and the light yellow residue was dried in high vacuo. The residue was dissolved in 1 ml dry N,N-dimethylformamide and added to a suspension of 2-methylimidazole sodium salt that had previously been prepared by addition of 54 mg (1.2 mmol) sodium hydride (55% dispersion in mineral oil) to a solution of 52 mg (0.62 mmol) 2-methylimidazole in 3 ml dry N,N-dimethylformamide under argon at room temperature. After stirring for 3 h the reaction was quenched by addition of excess water, followed by extraction with three portions of ethyl acetate. The combined organic extracts were dried with sodium sulfate and concentrated. Column chromatography afforded 52 mg (46%) of the title compound as an orange solid.

Provenance & Evidence