反应条件
1: 2,5-Difluoro-aniline With hydrogenchloride in water T=50°C; 1 h; 2: chloral With sodium sulfate in water T=20°C; 0.5 h; 3: With sulfuric acid; hydroxylamine hydrochloride; water more than 3 stages;
参考文献
Rehwinkel, Hartmut; Baeurle, Stefan; Berger, Markus; Schmees, Norbert; Schaecke, Heike; Krolikiewicz, Konrad; Mengel, Anne; Nguyen, Duy; Jaroch, Stefan; Skuballa, Werner
Patent: US2005/222154 A1, 2005 ;
Location in patent: Page/Page column 18, 19 ;
US 20050222154 A1