反应详情

A solution of 2-naphthylaldehyde (3 g), piperidine (0.49 ml) and malonic acid (4.0 g) in pyridine (15 ml) was stirred for 2 hrs at 120° C. After cooling, the solution was acidified with conc. sulphuric acid. The solution was extracted with EtOAc. The oily layer was washed, dried, and evaporated to give the title compound (3.6 g) having the following physical data:

1. temperatureAfter cooling
2. extractionThe solution was extracted with EtOAc
3. washThe oily layer was washed
4. customdried
5. customevaporated