HRID485735

反应详情

EQUATION

反应方程式

HRID 485735 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

5.7 g of quadratic acid (0.05 mole) and 50.1 g of 97.7% strength 4-(2-hydroxyethyl)amino-2,2,6,6-tetramethylpiperidine (0.244 mole) were heated for five hours to 200° C. After cooling, the reaction product was boiled with 150 cc of acetone and, after another cooling step, vacuum-filtered and washed with acetone, thus obtaining 16.0 g. Yield: 66.8% of theory, mp 309°-311° C. Extinction (g/l.cm) at 336 nm: 97.

WORKUP

后处理

  1. temperatureAfter cooling
  2. filtrationafter another cooling step, vacuum-filtered
  3. washwashed with acetone
  4. customthus obtaining 16.0 g