HRID464008
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
PROCEDURE
实验过程
A mixture of 9-bromoacetyl-6,9,11-trihydroxy-5,7,8,9,10,12-hexahydronaphthacene-5,12-dione (1.00 g) obtained in Reference Example 1-(1), sodium valerate (1.44 g) and acetone (50 ml) was stirred under reflux for 5 hours, cooled to room temperature and concentrated under reduced pressure. The residue was triturated with an adequate quantity of ether, and solid substances were filtered to give reddish crystals of 9-valeryloxyacetyl-6,9,11-trihydroxy-5,7,8,9,10,12-hexahydronaphthacene-5,12-dione. M.P., 170°-172° C.
WORKUP
后处理
- temperatureunder reflux for 5 hours
- concentrationconcentrated under reduced pressure
- customThe residue was triturated with an adequate quantity of ether, and solid substances
- filtrationwere filtered