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
One-Pot, Three-Component Synthesis of 3-(5-Amino-1<i>H</i>-pyrazol-4-yl)-3-(2-hydroxy-4,4-dimethyl-6-oxocyclohex-1-enyl)indolin-2-ones
作者:Somayeh Ahadi、Peiman Mirzaei、Ayoob Bazgir
DOI:10.1080/00397910903062298
日期:2010.3.19
A clean, efficient, one-pot, three-component method for the synthesis of 3-(5-amino-1H-pyrazol-4-yl)-3-(2-hydroxy-4,4-dimethyl-6-oxocyclohex-1-enyl)indolin-2-one derivatives by condensation reaction of dimedone, 1H-pyrazol-5-amines, and isatins in aqueous media is reported.