HRID647129

反应详情

EQUATION

反应方程式

HRID 647129 的结构方程式

PROCEDURE

实验过程

61 mg. of 1-(3-trifluoromethyl-4-chlorophenyl)-5-imino-4,4-dimethyl-2-imidazolidinone are dissolved in 4 ml. of 0.1-N aqueous hydrochloric acid, and 2 ml. of water are added. The white needles which gradually precipitate are removed by filtration after 20 hours, washed with water and dried under greatly reduced pressure at 65° for 2 hours. 3-(3-trifluoromethyl-4-chlorophenyl)-5,5-dimethylhydantoin, which melts at 156°-157.5°, is obtained.

WORKUP

后处理

  1. customThe white needles which gradually precipitate are removed by filtration after 20 hours
  2. washwashed with water
  3. customdried under greatly reduced pressure at 65° for 2 hours