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المؤلفShkoor, Mohanad
المؤلفSu, Haw‐Lih
المؤلفAhmed, Suzan
المؤلفHegazy, Sarah
تاريخ الإتاحة2019-12-23T07:11:30Z
تاريخ النشر2019-01-01
اسم المنشورJournal of Heterocyclic Chemistry
المعرّفhttp://dx.doi.org/10.1002/jhet.3826
الاقتباسShkoor, M., Su, H.-L., Ahmed, S., Hegazy, S. Synthesis of 5-oxo-5H-chromeno[3,4-c]pyridine-1-carbonitriles and features of their NMR spectra (2019) Journal of Heterocyclic Chemistry, .
الرقم المعياري الدولي للكتاب0022-152X
معرّف المصادر الموحدhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85075726068&origin=inward
معرّف المصادر الموحدhttp://hdl.handle.net/10576/12408
الملخصTwo different methods leading to 5-oxo-5H-chromeno[3,4-c]pyridine-1-carbonitriles were investigated. Reactions of 3-aminocrotonirile with substituted salicylaldehydes provided 5-oxo-5H-chromeno[3,4-c]pyridine-1-carbonitriles with the same substituent on positions 2 and 4 of the system. The reaction of 3-aminocrotonirile with variety of substituted 3-acetylcoumarins lead to 5-oxo-5H-chromeno[3,4-c]pyridine-1-carbonitriles with different substituents on positions 2 and 4. The structures of the products were confirmed by spectroscopic methods. The presence of nitrile moiety in the structures with fixed geometry caused the highly downfield shift of the aromatic proton at position 10 in 1H NMR spectrum. The electronic factor of the substituents caused variation of this downfield shift.
راعي المشروعThis work was supported by Qatar University Grant (QUST‐1‐CAS‐2018‐31). The findings achieved herein are solely the responsibility of the authors. We thank Central Laboratories Unit, Qatar University for their support in compounds analysis.
اللغةen
الناشرWiley
الموضوع5‐oxo‐5H‐chromeno[3,4‐c]pyridine‐1‐carbonitriles
NMR spectra
العنوانSynthesis of 5-oxo-5H-chromeno[3,4-c]pyridine-1-carbonitriles and features of their NMR spectra
النوعArticle
الصفحات517-929
رقم العدد2
رقم المجلد57
ESSN1943-5193
dc.accessType Full Text


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