HRID918059
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
The less polar residue, crude 21-(3'-chloropropoxy)-5α-pregnane-3,11,20-trione (1.1 g.) was treated with `stock` chloroiridic acid solution. The mixture was then refluxed for 24 hours, cooled and partitioned between water and ether. The organic layer was washed with water, dried (Na2SO4) and evaporated. The residue was subjected to preparative t.l.c. EtOAc/petrol 1:1 to give title compound (0.54 g.) as a white foam, [α]D + 73° (c 1.3).
WORKUP
后处理
- temperatureThe mixture was then refluxed for 24 hours
- temperaturecooled
- custompartitioned between water and ether
- washThe organic layer was washed with water
- dry with materialdried (Na2SO4)
- customevaporated