5,6-二氢-4-甲氧基-2H-吡喃合成路线 (共 5 条)
反应条件
1: With titanium tetrachloride in dichloromethane T=-78°C; 1 h; 2: With pyridine; potassium hydroxide in dichloromethane T=-78 - 20°C; 1.33333 h; Further stages.;
参考文献
ABBOTT LABORATORIES; ABBOTT LABORATORIES TRADING (SHANGHAI) COMPANY, LTD.; WANG, Xueqing; MEYER, Michael; YAO, Betty; GUO, Tao; WEI, Guo Ping,Robert; WANG, Lijuan, Jane
Patent: WO2013/10453 A1, 2013 ;
Location in patent: Page/Page column 223 ;
反应条件
1.1: triethylamine; titanium tetrachloride / 10 h / 20 °C 2.1: pyridine; titanium tetrachloride / dichloromethane / 1 h 2.2: 1 h / 100 °C View Scheme
反应条件
3-chloro-benzenecarboperoxoic acid T=0 - 20°C; 1.16667 h;
参考文献
MERCK and CO., INC.
Patent: WO2005/105092 A2, 2005 ;
Location in patent: Page/Page column 25-26 ;
WO 2005/105092 A2
反应条件
1: With 3-chloro-benzenecarboperoxoic acid in methanol T=0 - 20°C; 5 h; 2: With calcium hydroxide powder in dichloromethane T=0°C; 0.5 h;
参考文献
MERCK and CO., INC.
Patent: WO2005/14537 A2, 2005 ;
Location in patent: Page 47 ;
WO 2005/014537 A2
反应条件
1-(chloromethyl)-4-fluoro-1,4-diazoniabicyclo-[2.2.2]octane bis(tetrafluoroborate) in water; acetonitrile T=20°C;
参考文献
MERCK and CO., INC.
Patent: WO2005/110409 A2, 2005 ;
Location in patent: Page/Page column 41 ;
WO 2005/110409 A2