HRID1707150

反应详情

EQUATION

反应方程式

HRID 1707150 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

A mixture of 2-(2-methyl-4-(diethylamino)benzoyl)benzoic acid (12.48 g.), N,N,N',N'-tetraethyl-m-phenylenediamine (10.56 g.) and acetic anhydride (12 ml.) was warmed (at 40°±8° C.) during one hour, diluted with water (50 ml.,) then 100 ml.), adjusted to pH 4.6 and filtered. The filtrate was clarified with water and adjusted to pH 5.5. Recrystallization of the resulting product (m.p. 134°-140° C.) from methanol afforded 3-(2,4-bis(diethylamino)phenyl)-3-(2-methyl-4-(diethylamino)phenyl)phthalide (I: X=Y4 =(CH3CH2)2N, Y2 =CH3, Z4 =Z5 =Z6 =Z7 =H) (m.p. 149°-151° C.).

WORKUP

后处理

  1. temperaturewas warmed (at 40°±8° C.) during one hour
  2. filtrationfiltered
  3. customRecrystallization of the resulting product (m.p. 134°-140° C.) from methanol