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International Letters of Chemistry, Physics and Astronomy
Volume 57
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Synthesis, Spectral Studies, Pharmacological and Insect Antifeedant Activities of some (E)-1-(2-(2-Benzyloxy-3-Methacrylate))-1-Naphthyl Enones

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Abstract:

Totally twelve title compounds have been synthesized by Claisen-Schmidt condensation of (E)-methyl 2-(2-(((1-acetylnaphthalen-2-yl) oxy) methyl) phenyl)-3-methoxy acrylate and substituted benzaldehydes in presence of catalytic quantity of LiOH.H2O catalyst under stirring in room temperature. The yields of the compounds are more than 92%. The synthesized titled compounds were characterized by their physical constants, IR, NMR and Mass spectral data. The spectral data such as infrared ν COs-cis, s-trans, COester, NMR chemical shifts (δ, ppm) of Hα, Hβ, Cα, Cβ, CO of enone moiety, Hβʹ and CO of acrylate moieties have been correlated with Hammett substituent constants, F and R parameters. The antimicrobial, antioxidant and insect antifeedant activities of all synthesized compounds have been evaluated using corresponding bacterial and fungal strains, DPPH radical scavenging and Disc diffusion bio-assay of 4th instar larvae Achoea Janata L with castor-leaf discs.

Info:

Periodical:
International Letters of Chemistry, Physics and Astronomy (Volume 57)
Pages:
51-65
DOI:
10.18052/www.scipress.com/ILCPA.57.51
Citation:
G. Thirunarayanan et al., "Synthesis, Spectral Studies, Pharmacological and Insect Antifeedant Activities of some (E)-1-(2-(2-Benzyloxy-3-Methacrylate))-1-Naphthyl Enones", International Letters of Chemistry, Physics and Astronomy, Vol. 57, pp. 51-65, 2015
Online since:
Aug 2015
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