KFU. Card publication. Stereodynamics of some pyridoxine derivatives

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FEDERAL UNIVERSITY

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STEREODYNAMICS OF SOME PYRIDOXINE DERIVATIVES

Form of presentation

Articles in international journals and collections

Year of publication

2017

Язык

английский

Authors, employees of KFU

Balandina Alsu Azatovna, author

Galiullina Albina Salikhzyanovna, author

Galiullina Leysan Faritovna, author

Garipov Marsel Radyikovich, author

Klochkov Vladimir Vasilevich, author

Rakhmatullin Ilfat Zufarovich, author

Strelnik Aleksey Dmitrievich, author

Shtyrlin Yuriy Grigorevich, author

Bibliographic description in the original language

Rakhmatullin I.Z., Galiullina L.F., Balandina A.A., Garipov M.R., Strelnik A.D., Galiullina A.S., Shtyrlin Y.G., Klochkov V.V. Stereodynamics of some pyridoxine derivatives/ Magnetic Resonance in Chemistry. - 2017. - V.55, 4, 304-311.

Annotation

The conformational properties of three pyridoxine derivatives were studied by 1H dynamic NMR spectroscopy. It was shown that conformational exchange depends on the type of substituents for investigated compounds. Conformational exchange caused by a rotation of substituents around C-C bond was studied for all pyridoxine derivatives by NMR experiments at low temperatures. It was also established that one of the compounds (9-(2,4-dinitrophenoxy)-3,3,8-trimethyl-6-(2-nitrophenyl)-1,5-dihydro-[1,3]dioxepino[5,6-с]pyridine) takes part in additional conformational exchange process associated with a rotation of dinitrophenyl fragment around C-O bond. Conformational transitions between twist forms of the seven-membered acetal cycle were discovered for compounds II and III. Line shape analysis of dynamic NMR spectra allowed determining energy barriers for all observed conformational exchange processes.

Keywords

pyridoxine, energy barrier, dynamic 1H NMR, 2D NOESY 1H NMR, conformational exchange

The name of the journal

Magnetic Resonance in Chemistry

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84990944954&partnerID=40&md5=e7bc442bc704759351f7bb41fdb9e4bb

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=142810&p_lang=2

Resource files

File name	Size (MB)	Format
MRC4528__Apr2017_.pdf	0,87	pdf	show / download

Full metadata record

Field DC	Value	Language
dc.contributor.author	Balandina Alsu Azatovna	ru_RU
dc.contributor.author	Galiullina Albina Salikhzyanovna	ru_RU
dc.contributor.author	Galiullina Leysan Faritovna	ru_RU
dc.contributor.author	Garipov Marsel Radyikovich	ru_RU
dc.contributor.author	Klochkov Vladimir Vasilevich	ru_RU
dc.contributor.author	Rakhmatullin Ilfat Zufarovich	ru_RU
dc.contributor.author	Strelnik Aleksey Dmitrievich	ru_RU
dc.contributor.author	Shtyrlin Yuriy Grigorevich	ru_RU
dc.date.accessioned	2017-01-01T00:00:00Z	ru_RU
dc.date.available	2017-01-01T00:00:00Z	ru_RU
dc.date.issued	2017	ru_RU
dc.identifier.citation	Rakhmatullin I.Z., Galiullina L.F., Balandina A.A., Garipov M.R., Strelnik A.D., Galiullina A.S., Shtyrlin Y.G., Klochkov V.V. Stereodynamics of some pyridoxine derivatives/ Magnetic Resonance in Chemistry. - 2017. - V.55, 4, 304-311.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=142810&p_lang=2	ru_RU
dc.description.abstract	Magnetic Resonance in Chemistry	ru_RU
dc.description.abstract	The conformational properties of three pyridoxine derivatives were studied by 1H dynamic NMR spectroscopy. It was shown that conformational exchange depends on the type of substituents for investigated compounds. Conformational exchange caused by a rotation of substituents around C-C bond was studied for all pyridoxine derivatives by NMR experiments at low temperatures. It was also established that one of the compounds (9-(2,4-dinitrophenoxy)-3,3,8-trimethyl-6-(2-nitrophenyl)-1,5-dihydro-[1,3]dioxepino[5,6-с]pyridine) takes part in additional conformational exchange process associated with a rotation of dinitrophenyl fragment around C-O bond. Conformational transitions between twist forms of the seven-membered acetal cycle were discovered for compounds II and III. Line shape analysis of dynamic NMR spectra allowed determining energy barriers for all observed conformational exchange processes.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	pyridoxine	ru_RU
dc.subject	energy barrier	ru_RU
dc.subject	dynamic 1H NMR	ru_RU
dc.subject	2D NOESY 1H NMR	ru_RU
dc.subject	conformational exchange	ru_RU
dc.title	Stereodynamics of some pyridoxine derivatives	ru_RU
dc.type	Articles in international journals and collections	ru_RU