反应详情

A mixture of 6-chloro-1-oxo-4-phenyl-1H-isochromen-3-carboxylic acid (210 mg), O-n-butylhydroxylamine (620 mg) and ethanol (8.4 ml) was stirred for 12 hrs. at 90° C. in a sealed tube. After cooling, the reaction mixture was concentrated under reduced pressure to give 2-butoxy-6-chloro-1-oxo-4-phenyl-1,2-dihydroisoquinoline-3-carboxylic acid.

1. customat 90° C.
2. temperatureAfter cooling
3. concentrationthe reaction mixture was concentrated under reduced pressure