Multicomponent Reaction Discovery: Three-Component Synthesis of Spirooxindoles
摘要:
The Lewis acid-catalyzed, three-component reaction of isatin and two 1,3-dicarbonyl compounds is reported. Reactions proceed with high efficiency under mild reaction conditions and with good functional group tolerance to afford spirooxindole pyranochromenedione derivatives.
Silica Supported H3PW12O40: An Efficient Catalyst for the Synthesis of Spirooxindoles via a One-Pot Reaction under Solvent Free Conditions
作者:Marjaneh Samadizadeh
DOI:10.14233/ajchem.2013.13144
日期:——
Silica supported tungstophosphoric acid was found to be an efficient catalyst for the solvent-free synthesis of spirooxindoles via a one-pot three component reaction of isatin, 1,3-cyclohexadione and 4-hydroxy-6-methyl-2H-pyran-2-one. This method has many advantages such as simple work-up, using reusable and heterogeneous catalyst and good yield.