HRID2052468

反应详情

EQUATION

反应方程式

HRID 2052468 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

PROCEDURE

实验过程

A solution of 2.78 g of 5-nitroisophthaloyl chloride in 50 ml of ether is added to a stirred mixture of 6.5 g of 8-(3-amino-p-toluamido)-1,3,5-naphthalenetrisulfonic acid, trisodium salt, 3.2 g of sodium acetate trihydrate, 50 ml of water and 40 ml of ether over a 40 minute period. The mixture is stirred for an additional 30 minutes, then is evaporated. The residue is dissolved in 20 ml of hot water, then is placed in an icebox overnight. The precipitate is collected, washed with ice-water, 80% aqueous ethanol, ethanol and ether and is dried to yield 2.9 g of 2'-methyl-5-nitro-5'-(4,6,8-trisulfo-1-naphthylcarbamoyl)isophthalanilic acid, trisodium salt.

WORKUP

后处理

  1. customis evaporated
  2. dissolutionThe residue is dissolved in 20 ml of hot water
  3. waitis placed in an icebox overnight
  4. customThe precipitate is collected
  5. washwashed with ice-water, 80% aqueous ethanol, ethanol and ether
  6. customis dried