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ChemInform Abstract: 4‐(Succinimido)‐1‐butane Sulfonic Acid as a Broensted Acid Catalyst for Synthesis of Pyrano[4, 3‐b]pyran Derivatives under Solvent‐Free Conditions. Issue 22 (15th May 2015)
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Journal Article
Title:
ChemInform Abstract: 4‐(Succinimido)‐1‐butane Sulfonic Acid as a Broensted Acid Catalyst for Synthesis of Pyrano[4, 3‐b]pyran Derivatives under Solvent‐Free Conditions. Issue 22 (15th May 2015)
Main Title:
ChemInform Abstract: 4‐(Succinimido)‐1‐butane Sulfonic Acid as a Broensted Acid Catalyst for Synthesis of Pyrano[4, 3‐b]pyran Derivatives under Solvent‐Free Conditions.
Abstract: The title sulfonic acid (SBSA) efficiently catalyzes the three‐component reaction of 4‐hydroxypyranone (I), aromatic aldehydes, and malonitrile furnishing pyranopyran derivatives (IV) (14 examples) in good yield, in general.