5-溴-2-氯-3-甲醛吡啶合成路线 (共 4 条)
反应条件
lithium aluminium tetrahydride in tetrahydrofuran T=-10 - 20°C;
参考文献
PFIZER INC.
Patent: WO2009/16460 A2, 2009 ;
Location in patent: Page/Page column 104 ;
WO 2009/016460 A2
反应条件
pyridinium chlorochromate in dichloromethane T=18 - 25°C; 2 h;
参考文献
WO2009/10801 A1, ;
Page/Page column 72 ;
WO 2009/010801 A1
反应条件
1.1: calcium chloride; sodium tetrahydroborate / dichloromethane / 12 h / 0 - 20 °C 1.2: 0 °C 2.1: Dess-Martin periodane / dichloromethane / 12 h / 0 - 20 °C View Scheme
参考文献
WO2011/103202 A2, ;
WO 2011/103202 A2
反应条件
diethylamino-sulfur trifluoride; ethanol in dichloromethane T=20°C; 2 h;
参考文献
WO2011/103202 A2, ;
Page/Page column 181 ;
WO 2011/103202 A2