反应详情

4.54 ml (32.52 mmol) of triethylamine are added, at ambient temperature under an inert atmosphere, to 3.56 g (27.14 mmoles) of 2-methylindolizine in 15 ml of dichloroethane, followed, dropwise, by 5.53 g (29.85 mmol) of 4-nitrobenzoic acid chloride. The reaction medium is stirred for 18 h at ambient temperature, hydrolysed with a saturated aqueous solution of sodium hydrogen carbonate and then extracted with dichloromethane. The organic phase is washed with a saturated aqueous solution of sodium chloride, dried over sodium sulphate, and then concentrated under reduced pressure. The residue obtained is washed with diethyl ether. 5.69 g of a yellow solid are obtained.

1. extractionextracted with dichloromethane
2. washThe organic phase is washed with a saturated aqueous solution of sodium chloride
3. dry with materialdried over sodium sulphate
4. concentrationconcentrated under reduced pressure
5. customThe residue obtained
6. washis washed with diethyl ether