HRID1980296

反应详情

EQUATION

反应方程式

HRID 1980296 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

9.6 g of tert.-butyl (4S)-3-benzyloxycarbonyl-2-oxo-imidazolidine-4-carboxylate are dissolved in 200 ml of acetone, and 8.3 g of anhydrous potassium carbonate and 14.2 g of methyl iodide are added thereto. The mixture is stirred at room temperature for 6 days. The reaction mixture is treated in the same manner as described in Preparation 1-(2), whereby 9.0 g of tert.-butyl (4S)-1-methyl-3-benzyloxycarbonyl-2-oxo-imidazolidine-4-carboxylate are obtained as colorless crystals. Yield: 89.8% The physico-chemical properties of this product are identical with those of the sample obtained in Preparation 1-(2).

WORKUP

后处理

  1. additionThe reaction mixture is treated in the same manner
  2. customas described in Preparation 1-(2)