Effect of substituents on the C-13 chemical shifts of the azomethine carbon atom of N-(phenyl substituted) pyridine-4-aldimines
Само за регистроване кориснике
1999
Чланак у часопису (Објављена верзија)

Метаподаци
Приказ свих података о документуАпстракт
C-13 chemical shifts of the azomethine carbon atom for N-(substituted phenyl)pyridine-4-aldimines, 4-Py-CH=N-C6H4-X, X having a wide range of substituent effects, have been determined in CDCl3 solution. Exceptionally good Hammett correlations of C-13 NMR chemical shifts of azomethine carbons with electrophilic substituent constants sigma(+) points out to a strong resonance interaction of substituents on the aniline ring with the azomethine carbon atom of the investigated imines. The increased demand for electrons in the investigated system is being compared with that of the N-benzylidenaniline. The mode of transmission of substituent effects, both inductive and resonance, in both systems, is discussed.
Кључне речи:
C-13 NMR spectroscopy / spectra-structure correlations / N-(substituted phenyl) pyridine-4-aldiminesИзвор:
Journal of Molecular Structure, 1999, 482, 375-378Издавач:
- Elsevier, Amsterdam
DOI: 10.1016/S0022-2860(98)00860-6
ISSN: 0022-2860
WoS: 000081038100070
Scopus: 2-s2.0-0344171895
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Jovanović, Bratislav Ž. AU - Misić-Vuković, Milica AU - Marinković, Aleksandar AU - Vajs, Vlatka PY - 1999 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/257 AB - C-13 chemical shifts of the azomethine carbon atom for N-(substituted phenyl)pyridine-4-aldimines, 4-Py-CH=N-C6H4-X, X having a wide range of substituent effects, have been determined in CDCl3 solution. Exceptionally good Hammett correlations of C-13 NMR chemical shifts of azomethine carbons with electrophilic substituent constants sigma(+) points out to a strong resonance interaction of substituents on the aniline ring with the azomethine carbon atom of the investigated imines. The increased demand for electrons in the investigated system is being compared with that of the N-benzylidenaniline. The mode of transmission of substituent effects, both inductive and resonance, in both systems, is discussed. PB - Elsevier, Amsterdam T2 - Journal of Molecular Structure T1 - Effect of substituents on the C-13 chemical shifts of the azomethine carbon atom of N-(phenyl substituted) pyridine-4-aldimines EP - 378 SP - 375 VL - 482 DO - 10.1016/S0022-2860(98)00860-6 ER -
@article{ author = "Jovanović, Bratislav Ž. and Misić-Vuković, Milica and Marinković, Aleksandar and Vajs, Vlatka", year = "1999", abstract = "C-13 chemical shifts of the azomethine carbon atom for N-(substituted phenyl)pyridine-4-aldimines, 4-Py-CH=N-C6H4-X, X having a wide range of substituent effects, have been determined in CDCl3 solution. Exceptionally good Hammett correlations of C-13 NMR chemical shifts of azomethine carbons with electrophilic substituent constants sigma(+) points out to a strong resonance interaction of substituents on the aniline ring with the azomethine carbon atom of the investigated imines. The increased demand for electrons in the investigated system is being compared with that of the N-benzylidenaniline. The mode of transmission of substituent effects, both inductive and resonance, in both systems, is discussed.", publisher = "Elsevier, Amsterdam", journal = "Journal of Molecular Structure", title = "Effect of substituents on the C-13 chemical shifts of the azomethine carbon atom of N-(phenyl substituted) pyridine-4-aldimines", pages = "378-375", volume = "482", doi = "10.1016/S0022-2860(98)00860-6" }
Jovanović, B. Ž., Misić-Vuković, M., Marinković, A.,& Vajs, V.. (1999). Effect of substituents on the C-13 chemical shifts of the azomethine carbon atom of N-(phenyl substituted) pyridine-4-aldimines. in Journal of Molecular Structure Elsevier, Amsterdam., 482, 375-378. https://doi.org/10.1016/S0022-2860(98)00860-6
Jovanović BŽ, Misić-Vuković M, Marinković A, Vajs V. Effect of substituents on the C-13 chemical shifts of the azomethine carbon atom of N-(phenyl substituted) pyridine-4-aldimines. in Journal of Molecular Structure. 1999;482:375-378. doi:10.1016/S0022-2860(98)00860-6 .
Jovanović, Bratislav Ž., Misić-Vuković, Milica, Marinković, Aleksandar, Vajs, Vlatka, "Effect of substituents on the C-13 chemical shifts of the azomethine carbon atom of N-(phenyl substituted) pyridine-4-aldimines" in Journal of Molecular Structure, 482 (1999):375-378, https://doi.org/10.1016/S0022-2860(98)00860-6 . .