HRID406942
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
CONDITIONS
反应条件
- 温度
- 60 °C
PROCEDURE
实验过程
(2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol (1.2 g; 2.9 mmol) is dissolved in 7.2 ml of 4-methyl-2-pentanone. The solution is heated up to 60° C. 350 μl (3.05 mmol) of aqueous HBr (W=47%) are added. After crystallisation the suspension is stirred over night. The crystals are filtered off and dried to obtain 1.38 g (97%) of the title compound (m.p.: 163° C.).
WORKUP
后处理
- customAfter crystallisation the suspension
- filtrationThe crystals are filtered off
- customdried