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Letters in Organic Chemistry

Author(s): Mohammad A. Nasseri and Mehri Salimi

DOI: 10.2174/1570178611310030004

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Sulfuric Acid-modified PEG-6000 (PEG-SO3H): An Efficient, Bio-degradable and Reusable Catalyst for Synthesis of α, α' bis(arylidene) Cycloalkanones Under Solvent-free Conditions

Page: [164 - 170] Pages: 7

  • * (Excluding Mailing and Handling)

Abstract

A green and efficient method for synthesis of α,α' -bis (arylidene) cycloalkanones, starting from aromatic aldehydes in reaction with ketones using sulfonated polyethylene glycol 6000 (PEG-SO3H) as a stable, reusable and biodegradable catalyst under solvent-free conditions at 80 °C is described. The use of a nontoxic, inexpensive, easily available and recyclable catalyst makes this protocol practical, environmentally friendly and economically attractive.

Keywords: α, α'-bis(arylidene) cycloalkanones, Crossed-aldol condensation, PEG-SO3H, Solvent-free conditions