Tetrahedron Letters

Sulfuric acid-modified PEG-6000 (PEG–OSO 3 H): a biodegradable, reusable solid acid catalyst for highly efficient and eco-friendly synthesis of novel bis- …

ZN Siddiqui, T Khan

Index: Siddiqui, Zeba N.; Khan, Tabassum Tetrahedron Letters, 2013 , vol. 54, # 29 p. 3759 - 3764

Full Text: HTML

Citation Number: 12

Abstract

Sulfuric acid-modified PEG-6000 (PEG–OSO3H) is used as a highly efficient, biodegradable, and reusable acid catalyst for the synthesis of novel acyclic and heterocyclic bis-Knoevenagel products under thermal solvent-free conditions. The remarkable features of this green, new methodology are high conversions, cleaner reaction profile, simple experimental and work-up procedure, and economic viability. The catalyst is characterized ...