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[3+2] Cycloaddition Reaction for the Stereoselective Synthesis of a New Spirooxindole Compound Grafted Imidazo[2,1-b]thiazole Scaffold : Crystal Structure and Computational Study
Altowyan, Mezna Saleh; Soliman, Saied M.; Haukka, Matti; Al-Shaalan, Nora Hamad; Alkharboush, Aminah A.; Barakat, Assem (MDPI, 2022)A new spirooxindole hybrid engrafted imidazo[2,1-b]thiazole core structure was designed and achieved via [3+2] cycloaddition reaction approach. One multi-component reaction between the ethylene derivative based ... -
Synthesis and Structure Elucidation of Novel Spirooxindole Linked to Ferrocene and Triazole Systems via [3 + 2] Cycloaddition Reaction
Altowyan, Mezna Saleh; Soliman, Saied M.; Haukka, Matti; Al-Shaalan, Nora Hamad; Alkharboush, Aminah A.; Barakat, Assem (MDPI AG, 2022)In the present work, a novel heterocyclic hybrid of a spirooxindole system was synthesized via the attachment of ferrocene and triazole motifs into an azomethine ylide by [3 + 2] cycloaddition reaction protocol. The X-ray ... -
Synthesis of Unexpected Dimethyl 2-(4-Chlorophenyl)-2,3-dihydropyrrolo[2,1-a]isoquinoline-1,3-dicarboxylate via Hydrolysis/Cycloaddition/Elimination Cascades : Single Crystal X-ray and Chemical Structure Insights
Altowyan, Mezna Saleh; Soliman, Saied M.; Haukka, Matti; Al-Shaalan, Nora H.; Alkharboush, Aminah A.; Barakat, Assem (MDPI AG, 2022)Hydrolysis/[3 + 2] cycloaddition/elimination cascades employed for the synthesis of unexpected tricyclic compound derived from isoquinoline. Reaction of ethylene derivative 1 with the isoquinoline ester iminium ion 2 in ... -
Stereoselective Synthesis of New 4-Aryl-5-indolyl-1,2,4-triazole S- and N-β-Galactosides : Characterizations, X-ray Crystal Structure and Hirshfeld Surface Analysis
Altowyan, Mezna Saleh; Haukka, Matti; Soliman, Saied M.; Barakat, Assem; Boraei, Ahmed T. A.; Aboelmagd, Ahmed (MDPI AG, 2023)5-(1H-Indol-2-yl)-4-phenyl-2,4-dihydro-3H-1,2,4-triazole-3-thione 1a and 4-(4-chlorophenyl)-5-(1H-indol-2-yl)-2,4-dihydro-3H-1,2,4-triazole-3-thione 1b were galactosylated in the presence of NaHCO3 in ethanol to produce ... -
Straightforward Regio- and Diastereoselective Synthesis, Molecular Structure, Intermolecular Interactions and Mechanistic Study of Spirooxindole-Engrafted Rhodanine Analogs
Barakat, Assem; Haukka, Matti; Soliman, Saied M.; Ali, M.; Al-Majid, Abdullah Mohammed; El-Faham, Ayman; Domingo, Luis R. (MDPI AG, 2021)Straightforward regio- and diastereoselective synthesis of bi-spirooxindole-engrafted rhodanine analogs 5a–d were achieved by one-pot multicomponent [3 + 2] cycloaddition (32CA) reaction of stabilized azomethine ylide (AYs ...
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