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Synthesis of Three New Donor- Acceptor [4] Dendralenes

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dc.contributor.author MIR MUNSIF ALI TALPUR
dc.contributor.author TAJNEES PIRZADA
dc.contributor.author PETER SKABARA
dc.contributor.author THOMAS WESTGATE
dc.contributor.author MOHAMMAD RAZA SHAH
dc.date.accessioned 2023-11-27T05:25:50Z
dc.date.available 2023-11-27T05:25:50Z
dc.date.issued 2013-08-06
dc.identifier.citation Talpur, M. M., Pirzada, T., & Skabara, P. (2013). Synthesis of three new donor-acceptor (4) dendralenes. Journal of the Chemical Society of Pakistan, 35(4), 1219-1227. en_US
dc.identifier.issn 0253-5106
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/19969
dc.description.abstract Three new donor - acceptor [4] dendralene compounds have been synthesized. Wittig reaction was used for the preparation of first two compounds and third one by Knoevehagel condensation. Their mass was calculated by APCI mass spectra which are in good agreement with theoretical data. UV-Vis data indicate the cross- conjugation in these systems due to the push-pull intra molecular charge transfer (CIT) sequence from electron donor to acceptor group. The ¹H-NMR signals appear in aromatic region confirming the formation of trans (having π- structures) isomers rather than cis may be due to the exposure of the compounds to ambient light. The dominating roll of electron acceptor nitro, methoxy and cyno benzene groups in conjugation is clearly shown. The ¹³C-NMR spectra which also supported the above analytical data and the number of carbons atoms obtained representing well the structures established. en_US
dc.description.sponsorship The chemical society of Pakistan is an approved society from the PSF. en_US
dc.language.iso en en_US
dc.publisher HEJ Research Institute of Chemistry, University of Karachi, Karachi. en_US
dc.subject dendralene en_US
dc.subject Wittig reaction en_US
dc.subject cross- conjugation en_US
dc.subject UV-Vis en_US
dc.subject Knoevehagel condensation en_US
dc.title Synthesis of Three New Donor- Acceptor [4] Dendralenes en_US
dc.type Article en_US


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