Facile preparation of the tosylhydrazone derivatives of a series of racemic trans-3,4-substituted cyclopentanones.
Molecules 2011;
17:1-14. [PMID:
22193210 PMCID:
PMC6268573 DOI:
10.3390/molecules17010001]
[Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2011] [Revised: 12/19/2011] [Accepted: 12/19/2011] [Indexed: 11/17/2022] Open
Abstract
We report the synthesis and characterization of a variety of trans-3,4-substituted cyclopentanones and the corresponding tosylhydrazone derivatives starting with diethyl fumarate. Protection of the keto group followed by selective monohydrolysis of esters was achieved, resulting in cyclopentanones with different substituents at positions 3 and 4. The tosylhydrazone derivative of each cyclopentanone intermediate was prepared in moderate to good yields. These compounds are potential precursors for functionalized methanofullerenes.
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