HRID1650116

反应详情

EQUATION

反应方程式

HRID 1650116 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

3

PROCEDURE

实验过程

3.4 g of 17-acetoxy-3-methoxy-18-methyl-1,3,5(10),16-estratetraene is refluxed for 1.5 hours in 50 ml of acetonitrile with 2.3 ml of allylmethylcarbonate, 220 mg of palladium acetate and 580 microliters of tributyltin methoxide. The reaction mix is then diluted with water, extracted with dichloromethane and concentrated under vacuum. After chromatographic purification, 2.1 g of 3-methoxy-18-methyl-1,3,5(10),15-estratetraen-17-one with a melting point of 158°-160° C. is obtained.

WORKUP

后处理

  1. additionThe reaction mix
  2. extractionextracted with dichloromethane
  3. concentrationconcentrated under vacuum
  4. customAfter chromatographic purification, 2.1 g of 3-methoxy-18-methyl-1,3,5(10),15-estratetraen-17-one with a melting point of 158°-160° C.
  5. customis obtained