2-Amino-4-chlorobenzaldehyde → 7-Chloro-2-(2-methoxycarbonylbenzofuran-5-yl)quinoline

Participants

Reaction Conditions

Reaction Steps

A mixture of 5-acetyl-2-methoxycarbonylbenzofuran (0.57 g), 2-amino-4-chlorobenzaldehyde (0.40 g) and p-toluenesulfonic acid monohydrate (0.04 mg) was stirred at 200° C. for 3 hours. After being cooled, the resulting mixture was dissolved in chloroform, washed with water, dried over magnesium sulfate and concentrated under reduced pressure to give a syrup. The syrup was subjected to column chromatography on silica gel and eluted with a mixture of ethyl acetate and toluene (1:20). The fractions containing object compound were combined and concentrated under reduced pressure to give 7-chloro-2-(2-methoxycarbonylbenzofuran-5-yl)quinoline (0.32 g).

Provenance & Evidence