반응 #93231

반응 방정식

Methacrylyl chloride

triethylamine

2-(2'-hydroxy-5'-hydroxypropyl-3'-tert-butylphenyl)-5-chloro-2H-benzotriazole

→

2-(2'-Hydroxy-5'-methyacrylyloxypropyl-3'-tert-butylphenyl)-5-chloro-2H-benzotriazole

용매

methylene chloride

methylene chloride

반응 조건

후처리

1. 1
   세척washed with 1N hydrochloric acid and water
2. 2
   건조The methylene chloride solution of the product was dried with sodium sulfate
3. 3
   기타evaporated
4. 4
   기타A polymerization grade sample was obtained by recrystallization from methanol

실험 절차

Methacrylyl chloride (5.9 ml) and triethylamine (8.5 ml) were added dropwise at -5° C. to a solution of 2-(2'-hydroxy-5'-hydroxypropyl-3'-tert-butylphenyl)-5-chloro-2H-benzotriazole (20 g) in 250 ml of methylene chloride. The reaction mixture was stirred at 0° C. overnight and then washed with 1N hydrochloric acid and water. The methylene chloride solution of the product was dried with sodium sulfate, passed through alumina column and evaporated. The crude yield of the product was 22 g (90%). A polymerization grade sample was obtained by recrystallization from methanol--methylene chloride mixture, m.p. 74.5°-76.5° C.

출처