HRID2231992

反应详情

EQUATION

反应方程式

HRID 2231992 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

A mixture of 1.76 g of 17α-acetoxy-6β-chloro-7α-hydroxy-2-oxa-4-pregnene-3,20-dione, 1.11 ml of methanesulfonyl chloride and 5.2 ml of pyridine was stirred for 1 hour under ice cooling, and then for 12 hours at room temperature. Ice-cooled water was added to the reaction mixture, and the precipitated crystals were collected by filtration to give 2.01 g of 17α-acetoxy-6β-chloro-7α-mesyloxy-2-oxa-4-pregnene-3,20-dione.

WORKUP

后处理

  1. waitfor 12 hours at room temperature
  2. additionwas added to the reaction mixture
  3. filtrationthe precipitated crystals were collected by filtration