تفاعل #1857567

معادلة التفاعل

N-chlorosuccinimide

tert-butyl 4-{4-[(hydroxyimino)methyl]-1,3-thiazol-2-yl}piperidine-1-carboxylate

2-vinylphenol

potassium hydrogencarbonate

→

tert-Butyl 4-{4-[5-(2-hydroxyphenyl)-4,5-dihydro-1,2-oxazol-3-yl]-1,3-thiazol-2-yl}piperidine-1-carboxylate

المذيبات

ethyl acetate

ethyl acetate

water

ظروف التفاعل

المعالجة

1. 1
   استخلاصextracted with ethyl acetate
2. 2
   تجفيفThe organic extracts were dried over sodium sulphate
3. 3
   تركيزconcentrated under reduced pressure
4. 4
   أخرىThe residue was purified by chromatography

الإجراء التجريبي

To a solution of tert-butyl 4-{4-[(hydroxyimino)methyl]-1,3-thiazol-2-yl}piperidine-1-carboxylate (3.46 g) and 2-vinylphenol (1.60 g) in ethyl acetate (50 ml) were added, at room temperature, potassium hydrogencarbonate (5.55 g) and N-chlorosuccinimide (1.78 g), and then one drop of water. After stirring at 60° C. overnight, the reaction mixture was admixed with ethyl acetate and water and extracted with ethyl acetate. The organic extracts were dried over sodium sulphate and concentrated under reduced pressure. The residue was purified by chromatography. This gave tert-butyl 4-{4-[5-(2-hydroxyphenyl)-4,5-dihydro-1,2-oxazol-3-yl]-1,3-thiazol-2-yl}piperidine-1-carboxylate (1.70 g).

المصدر