1: poly(ethylene glycol) With potassium tert-butylate in tert-butyl alcohol; benzene T=35°C; 2 h; 2: bromoacetic acid tert-butyl ester in tert-butyl alcohol; benzene T=20°C; 3: With hydrogenchloride; water more than 3 stages;
参考文献
Ji, Shishan; Zhu, Dequan
Patent: US2006/14666 A1, 2006 ;
Location in patent: Page/Page column 4 ;