HRID2235340

反应详情

EQUATION

反应方程式

HRID 2235340 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

PROCEDURE

实验过程

Analogously to general procedure (I) N-(3,3-dimethyl-6-nitro-2-oxo-2,3-dihydro-1H-indol-5-yl)-acetamide (50 g) is alkylated using pentyliodide (76.8 g; 0.38 mol) and K2CO3 (53.6 g; 0.38 mol) at 60° C. for 24 h. After aqueous work-up the crude material is de-acetylated under reflux in 2-propanol (500 ml) and hydrochloric acid (6 N; 300 ml). After aqueous work-up pure 5-amino-3,3-dimethyl-6-nitro-1-pentyl-1,3-dihydro-indol-2-one (40.7 g) is obtained by re-crystallization from MeCN.

WORKUP

后处理

  1. customat 60° C.
  2. customfor 24 h