Abstract
Ultrasound-assisted the three-component synthesis of spiro[4H-pyrano[3,2-c]quinolin-4,3′-indoline]-2′,5(6H)-diones in water
Shaghyegh Gholizadeh and Koorosh Radmoghadam*
DOI : http://dx.doi.org/10.13005/ojc/290450
Abstract:
A simple and efficient synthesis of the titled spirooxindoles was accomplished via the three-component reaction between isatins, 4-hydroxy-2H-quinolin-2-one, and malononitrile or ethylcyanoacetate in aqueous medium under ultrasound irradiation.
Keywords:Spirooxindole;Three-component reaction; Ultrasound irradiation; In water reaction
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