Reacción #324144

Ecuación de reacción

sodium bicarbonate

product

6,7,8,9-Tetrahydro-3-methyl-4-oxo-10-propyl-4H-naphtho[2,3-b]pyran-2-carboxylic acid

→

Sodium 6,7,8,9-tetrahydro-3-methyl-4-oxo-10-propyl-4H-naphtho[2,3-b]pyran-2-carboxylate

Disolventes

water

Condiciones de reacción

Tratamiento posterior

1. 1
   FiltraciónThe resulting solution was filtered
2. 2
   Otrothen evaporated to small volume
3. 3
   workup.ADDITIONdiluted with acetone
4. 4
   OtroCrystallisation
5. 5
   Filtraciónthe resulting crystals were filtered off
6. 6
   Otrorecovered as an off-white solid, which

Procedimiento

A solution of sodium bicarbonate (0.78 g) in water (30 ml) was added to the product of step (g) (2.8 g). The resulting solution was filtered then evaporated to small volume and diluted with acetone. Crystallisation occurred and the resulting crystals were filtered off and recovered as an off-white solid, which was the desired sodium salt (2.65 g).

Fuente