Zha Q, An X, Xu ZJ, Han WB, Wu Y. A Low-Cost and Scalable Synthesis of a Cyclohexanone-Related Bifunctional Building Block.
ACS OMEGA 2021;
6:30811-30817. [PMID:
34805709 PMCID:
PMC8600635 DOI:
10.1021/acsomega.1c05159]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 10/21/2021] [Indexed: 06/13/2023]
Abstract
A practical route to 2-(2-(2-methyl-1,3-dioxolan-2-yl)ethyl)cyclohexan-1-one was developed, featuring the use of inexpensive starting materials/reagents and readily attainable reaction conditions. The overall transformation was achieved in 53% yield with one chromatographic purification via NaOH-mediated aldol condensation, ethylene glycol protection of the ketone group in the presence of HC(OEt)3/concd HCl, saturation of the C=C bond and the benzene ring with Al-Ni alloy in aqueous KOH, and oxidation of the intermediate cyclohexanol with aqueous NaClO/TEMPO/KBr.
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