HRID1708792

反应详情

EQUATION

反应方程式

HRID 1708792 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

PROCEDURE

实验过程

In 200 ml of tetrahydrofuran was dissolved 11.7 g of 20-(1,3-dioxolan-2-yl)-1α,2α-epoxypregna-4,6-dien-3-one, followed by addition of 36 ml of a 1.0M solution of diisobutylaluminum hydride in toluene under ice-cooling. The mixture was stirred under ice-cooling for 15 minutes. Then, the reaction mixture was worked up in the same manner as Example 68 to recover 9.4 g of 20-(1,3-dioxolan-2-yl)-1α,2α-epoxypregna-4,6-dien-3α-ol (yield: 80%) showing the following physical properties.

WORKUP

后处理

  1. temperaturecooling
  2. temperaturecooling for 15 minutes