Abstract
Cyclopentanone or cyclohexanone were condensed with aromatic aldehydes to give corresponding α,α′-bis(R-benzylidene)cyclopentanones or α,α′-bis(R-benzylidene)cyclohexanones. The reaction was catalyzed by potassium hydrogen sulfate with a yield of 84–95% under solvent-free conditions.
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Cai, X.H., Xie, B. & Guo, H. Synthesis of α,α′-bis(R-benzylidene)cycloalkanones catalyzed by potassium hydrogen sulfate under solvent-free conditions. Chem. Pap. 60, 318–320 (2006). https://doi.org/10.2478/s11696-006-0057-1
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DOI: https://doi.org/10.2478/s11696-006-0057-1