反应详情

A mixture that consists of 4-(5-fluoro-2,3-dihydrobenzofuran-7-yl)-2-hydroxy-4-methyl-2-trifluoromethyl-pentanal (320 mg, 1 mmol) and 5-amino-2-methylquinoline (190 mg, 1.2 mmol) in acetic acid (2 ml) is stirred for 16 hours at room temperature, diluted with 10 ml of toluene and heated for 4 hours in a water separator. The batch is concentrated by evaporation, whereby the acetic acid is removed azeotropically with toluene. The residue is purified by column chromatography on silica gel with hexane-ethyl acetate: 274 mg of the product accumulates as colorless crystals.

1. concentrationThe batch is concentrated by evaporation, whereby the acetic acid
2. customis removed azeotropically with toluene
3. customThe residue is purified by column chromatography on silica gel with hexane-ethyl acetate