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https://open.uns.ac.rs/handle/123456789/6701
Title: | Sonochemical synthesis of lithium fluoride nano cubic as an active and simple catalyst for thia-Michael addition process: Synthesis and structural characterization of β-aryl-β-mercapto ketones | Authors: | Shobeiri Z. Pourayoubi M. Nečas M. Divjaković, Vladimir Babiak M. |
Issue Date: | 1-Jan-2015 | Journal: | Journal of the Iranian Chemical Society | Abstract: | © Iranian Chemical Society 2014. LiF nano cubic, with an average particle size of 21.6 nm, was synthesized sonochemically, using tetrabutylammonium fluoride as the fluoride source and characterized by SEM-EDX and XRD. This was applied, as a heterogeneous nano-catalyst, to synthesize some β-aryl-β-mercapto ketone derivatives via thia-Michael addition reactions with excellent yields at room temperature. In this catalytic system, the products of undesirable side reactions resulting from 1,2-addition, polymerization, bis-addition and oxidative coupling of thiols were not observed. The products were characterized by elemental analysis, IR, NMR and mass, and also single crystal X-ray determination for 3-(4-chlorophenylthio)-1,3-diphenylpropan-1-one, 1-phenyl-3-(phenylthio)-3-p-tolylpropan-1-one, 3-(p-tolylthio)-1-phenyl-3-p-tolylpropan-1-one and 3-(4-chlorophe-nylthio)-1-phenyl-3-p-tolylpropan-1-one. Following the recent search on the CSD, it is found that there is no report on the structure determination of [R1]C[H][CH2C(O)R2][S-Ar] β-aryl-β-mercapto ketones with the S-C6H5, S-C6H4-p-CH3 and S-C6H4-p-Cl segments (as S-Ar). | URI: | https://open.uns.ac.rs/handle/123456789/6701 | ISSN: | 1735207X | DOI: | 10.1007/s13738-014-0479-6 |
Appears in Collections: | Naučne i umetničke publikacije |
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