4,6-二氯吡嗪-3-羧酸乙酯合成路线 (共 3 条)
反应条件
trichlorophosphate T=95°C; 4 h;
参考文献
US2004/77653 A1, ;
Page 18 ;
US 20040077653 A1
反应条件
1.1: triethylamine; 4-Acetylaminobenzenesulfonyl Azide / acetonitrile / 1 h / 0 - 25 °C 2.1: triphenylphosphine / diethyl ether / 20 - 25 °C 2.2: 6 h / 115 °C 3.1: trichlorophosphate / 3.5 h / 100 °C / |Sealed tube; |Inert atmosphere; |Schlenk technique View Scheme
反应条件
in tetrahydrofuran
T=0 - 20°C;
参考文献
NEUROGEN CORPORATION
Patent: WO2004/74259 A1, 2004 ;
Location in patent: Page 39 ;
WO 2004/074259 A1