Multicomponent Reaction Discovery: Three-Component Synthesis of Spirooxindoles
作者:Bo Liang、Srinivas Kalidindi、John A. Porco、Corey R. J. Stephenson
DOI:10.1021/ol902764k
日期:2010.2.5
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.
Electrocatalytic Aldol Addition of Cyclic 1,3-Ketoesters to Isatins: Acetone as a Solvent for the Efficient and Facile Electrochemically Induced Way to 3-Substituted-3-Hydroxyindol-2-One Scaffold
作者:M. N. Elinson、V. M. Merkulova、A. I. Ilovaisky、A. O. Chizhov、F. Barba、B. Batanero
DOI:10.1149/2.021211jes
日期:——
electrolysis of isatins and cyclic1,3-ketoesters in acetone in an undivived cell results in the formation of the previously unknown 3-substituted-3-hydroxyindol-2-ones in 80–95% yields and 800–950% current efficiency. Thus, this simple electrocatalytic system can produce in aprotic solvent in an undivided cell, under mild conditions the new electrochemicallyinducedaldol reaction of isatins and cyclic 1,3-ketoesters