ChemInform Abstract: Efficient One-Pot Synthesis of Spiro[indoline-3,4′-pyrazolo[3,4-e][1,4]thiazepine] Dione via Three-Component Reaction.
Hui Chen, Daqing Shi*
Tetrahedron, 2011, 67, 5686-5692.
Novel tetracyclic spirooxindole derivatives are efficiently synthesized using p-toluenesulfonic acid as catalyst.
