Ultrasound-assisted three-component synthesis of 3-(5-amino-1H-pyrazol-4-yl)-3-(2-hydroxy-4,4-dimethyl-6-oxocyclohex-1-enyl)indolin-2-ones in water
作者:Afshin Rajabi Khorrami、Fereshteh Faraji、Ayoob Bazgir
DOI:10.1016/j.ultsonch.2009.11.017
日期:2010.3
Indium(III) chloride was found to be an efficient catalyst for the synthesis of 3-(5-amino-1H-pyrazol-4-yl)-3-(2-hydroxy-4,4-dimethyl-6-oxocyclohex-1-enyl)indolin-2-ones by one-pot, three-component reaction of dimedone, 1H-pyrazol-5-amines and isatins in water under ultrasonic irradiation. The advantages of this method are the use of a readily available catalyst, easy workup, excellent yields, and
发现氯化铟(III)是合成3-(5-氨基-1H-吡唑-4-基)-3-(2-羟基-4,4-二甲基-6-氧代环己基-1)的有效催化剂二甲酮,1H-吡唑-5-胺和靛红在水中的一锅,三组分反应在超声波照射下生成-烯基)吲哚啉-2-酮。该方法的优点是使用容易获得的催化剂,易于后处理,优异的产率以及使用水作为溶剂被认为对环境无害。