0000000001311726

AUTHOR

I. Goba

showing 8 related works from this author

Synthesis, spectroscopic and conformational analysis of 1,4-dihydroisonicotinic acid derivatives

2014

Abstract Structural and conformational properties of 1,4-dihydroisonicotinic acid derivatives, characterized by ester, ketone or cyano functions at positions 3 and 5 in solid and liquid states have been investigated by X-ray analysis and nuclear magnetic resonance and supported by quantum chemical calculations. The dihydropyridine ring in each of the compounds exists in flattened boat-type conformation. The observed ring distortions around the C(4) and N(1) atoms are interrelated. The substituent at N(1) has great influence on nitrogen atom pyramidality. The 1H, 13C and 15N NMR chemical shifts and coupling constants are discussed in terms of their relationship to structural features such as…

Coupling constantchemistry.chemical_classificationKetoneChemical shiftOrganic ChemistrySubstituentConjugated systemRing (chemistry)Analytical ChemistryInorganic Chemistrychemistry.chemical_compoundDelocalized electronchemistryComputational chemistryLone pairSpectroscopyJournal of Molecular Structure
researchProduct

CCDC 886199: Experimental Crystal Structure Determination

2013

Related Article: I.Goba,B.Turovska,S.Belyakov,E.Liepinsh|2013|Khim.Get.Soedin.,SSSR||778|

Space GroupCrystallographyMethyl 3-acetyl-5-cyano-26-dimethyl-14-dihydropyridine-4-carboxylateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 676989: Experimental Crystal Structure Determination

2008

Related Article: I.Goba, B.Turovska, J.Stradins, I.Turovskis, E.Liepinsh, S.Belyakov|2007|Khim.Get.Soedin.,SSSR||226|

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters126-Trimethyl-345-trimethoxycarbonyl-14-dihydropyridineExperimental 3D Coordinates
researchProduct

CCDC 886197: Experimental Crystal Structure Determination

2013

Related Article: I.Goba,B.Turovska,S.Belyakov,E.Liepinsh|2013|Khim.Get.Soedin.,SSSR||778|

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersMethyl 3-acetyl-5-cyano-1246-tetramethyl-14-dihydropyridine-4-carboxylateExperimental 3D Coordinates
researchProduct

CCDC 885313: Experimental Crystal Structure Determination

2013

Related Article: I.Goba,B.Turovska,S.Belyakov,E.Liepinsh|2013|Khim.Get.Soedin.,SSSR||778|

Methyl 3-acetyl-5-cyano-126-trimethyl-14-dihydropyridine-4-carboxylateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 886816: Experimental Crystal Structure Determination

2013

Related Article: I.Goba,B.Turovska,S.Belyakov,E.Liepinsh|2013|Khim.Get.Soedin.,SSSR||778|

3-Acetyl-5-cyano-26-dimethyl-14-dihydropyridine-4-carboxylic acidSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 676991: Experimental Crystal Structure Determination

2008

Related Article: I.Goba, B.Turovska, J.Stradins, I.Turovskis, E.Liepinsh, S.Belyakov|2007|Khim.Get.Soedin.,SSSR||226|

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters1246-Tetramethyl-345-trimethoxycarbonyl-14-dihydropyridineExperimental 3D Coordinates
researchProduct

CCDC 676992: Experimental Crystal Structure Determination

2008

Related Article: I.Goba, B.Turovska, J.Stradins, I.Turovskis, E.Liepinsh, S.Belyakov|2007|Khim.Get.Soedin.,SSSR||226|

126-Trimethyl-4-isopropyl-345-trimethoxycarbonyl-14-dihydropyridineSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct