Reacción #1949481

Ecuación de reacción

3-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-(methoxycarbonyl)methoxypyridine

compound 7-7

3-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-(methoxycarbonyl)methoxypyridine

sodium carbonate

n-pentanol

→

3-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-(n-pentyloxycarbonyl)methoxypyridine

Disolventes

water

Condiciones de reacción

Tratamiento posterior

1. 1
   TemperaturaThe reaction solution was cooled to room temperature
2. 2
   Extracciónextracted with ethyl acetate
3. 3
   LavadoThe organic layer was washed with saturated saline
4. 4
   Secadodried over anhydrous magnesium sulfate
5. 5
   Concentraciónconcentrated

Procedimiento

A mixture of 0.30 g of 3-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-(methoxycarbonyl)methoxypyridine [present compound 7-7], 0.06 g of sodium carbonate and 3.0 ml of n-pentanol was stirred for 1.5 hours at 100° C. The reaction solution was cooled to room temperature, then, poured into water, and extracted with ethyl acetate. The organic layer was washed with saturated saline, dried over anhydrous magnesium sulfate, and concentrated. The residue was subjected to silica gel column chromatography to obtain 0.07 g of 3-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-(n-pentyloxycarbonyl)methoxypyridine [present compound 7-50].

Fuente