Dowex Polymer–Mediated Protection of Carbonyl Groups

Abstract

Dowex (strongly acidic cationic exchange resin) polymer is employed as solid acid catalyst for the clean and less hazardous protection of carbonyl compounds as phenylhydrazones and 2,4‐dintrophenylhydrazones in ethanol under reflux conditions. The reactions proceed very smoothly and the yields of the derivatives are excellent.

Keywords:

• Dowex polymer
• carbonyl compounds
• 2,4-dinitrophenyl hydrazones
• phenyl hydrazones
• protection

Acknowledgments

Authors acknowledge the partial support of this work by Persian Gulf University Research Council.