HRID224519

反应详情

EQUATION

反应方程式

HRID 224519 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

A mixture of 1.6 grams of (1-ethyl-2-methylindol-3-yl)(3-carboxypyridin-2-yl)ketone, 1.85 grams of 1,2-diphenylindolizine and 10 ml. of acetic anhydride was heated at about 40° C. for 104 minutes and then cooled in an ice bath. The reaction mixture was filtered and the product was repeatedly recrystallized from a toluene-petroleum ether mixture until a constant melting point of 206.5°-207.5° C. was obtained. A chloroform solution of the final product produced a blue color when applied to a record sheet material coated with a zinc-modified phenolic resin.

WORKUP

后处理

  1. temperaturecooled in an ice bath
  2. filtrationThe reaction mixture was filtered
  3. customthe product was repeatedly recrystallized from a toluene-petroleum ether mixture until a constant melting point of 206.5°-207.5° C.
  4. customwas obtained