Acetic Acid → HCID 69204760, compound

Participants

Reaction Steps

224 mg (0.69 mmol) of 4-(5-chloro-2-methoxyphenyl)-2-hydroxy-4-methyl-2-(trifluoromethyl)pentanal and 195 mg (0.96 mmol) of 5-aminoquinoline-2-carboxylic acid methyl ester are dissolved in 20 ml of toluene. After 5.0 ml of concentrated acetic acid is added, it is refluxed for 16 hours in a water separator. After the solvent is removed, the residue is taken up in 10 ml of tetrahydrofuran, 0.3 ml (1.4 mmol) of titanium tetraethylate is added, and the reaction is allowed to reflux again. After the solvent is removed as well as after purification on silica gel with hexane/ethyl acetate (0-100%), 120 mg (33% of theory) of the product is obtained.

Provenance & Evidence