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Synthesis of α,α′-bis(R-benzylidene)cycloalkanones catalyzed by potassium hydrogen sulfate under solvent-free conditions

X. H. Cai, B. Xie, and H. Guo

College of Chemistry and Environmental Science, Guizhou University for Nationalities, 550025 Guiyang, P. R. China

 

E-mail: caixh1111@163.com

Received: 26 November 2005  Revised: 23 February 2006  Accepted: 26 February 2006

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.

Keywords: α,α′-bis(R-benzylidene)cycloalkanones - crossed aldol condensation - potassium hydrogen sulfate - solvent-free

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-006-0057-1

 

Chemical Papers 60 (4) 318–320 (2006)

Tuesday, May 28, 2024

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