HRID365122

反应详情

EQUATION

反应方程式

HRID 365122 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

1-Hexyl-2-methylpyridinium bromide (7.8 g, 0.03 mole) and 4-diethylaminobenzaldehyde (7.0 g, 0.04 mole) were refluxed in methanol (50 ml) in the presence of piperidine (1.0 ml) under nitrogen for four hours. The solution was evaporated and the resulting oil was redissolved in a small amount of isopropanol. Addition of twice the volume of ether gave a red crystalline solid which was collected and washed with isopropanol/ether to give 2-[4-(diethylamino)styryl]-1-hexylpyridinium bromide hemihydrate (5.8 g), melting point 222°-223° (decomposition).

WORKUP

后处理

  1. customThe solution was evaporated
  2. dissolutionthe resulting oil was redissolved in a small amount of isopropanol
  3. additionAddition of twice the volume of ether
  4. customgave a red crystalline solid which
  5. customwas collected
  6. washwashed with isopropanol/ether