Computational study of electronic influence of guanidine substitution on diels-alder reactions of heterocyclic dienes

Quantum-chemical calculations of cycloaddition properties of cyclic heterodienes substituted with guanidine functionality were carried out. Molecular and electronic structures of series of dienes (pyrrole, furan, thiophene, isoindole and 1,3-butadiene) were calculated and reactivity order establishe...

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Permalink: http://skupnikatalog.nsk.hr/Record/nsk.NSK01001074258/Details
Matična publikacija: Croatica chemica acta (Online)
92 (2019), 2 ; str. 279-286
Glavni autori: Antol, Ivana (Author), Barešić, Luka, Glasovac, Zoran, Margetić, Davor
Vrsta građe: e-članak
Jezik: eng
Predmet:
Online pristup: https://doi.org/10.5562/cca3570
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042 |a croatica 
044 |a ci  |c hr 
080 1 |a 54  |2 2011 
100 1 |a Antol, Ivana  |4 aut 
245 1 0 |a Computational study of electronic influence of guanidine substitution on diels-alder reactions of heterocyclic dienes  |h [Elektronička građa] /  |c Ivana Antol, Luka Barešić, Zoran Glasovac, Davor Margetić. 
300 |b Graf. prikazi. 
504 |a Bibliografija: 37 jed. 
504 |a Summary. 
520 |a Quantum-chemical calculations of cycloaddition properties of cyclic heterodienes substituted with guanidine functionality were carried out. Molecular and electronic structures of series of dienes (pyrrole, furan, thiophene, isoindole and 1,3-butadiene) were calculated and reactivity order established on the basis of FMO theory. Transition state calculations of model [4+2] cycloaddition reaction with acetylene indicate that guanidine substitution influences reaction barriers in moderate extent (up to ~4 kcal mol–1). The substitution position plays an important role on the sign and magnitude of the effect and protonation of nitrogen possessing substituents increases reactivity of dienes. 
653 0 |a Heterociklički spojevi  |a Dieni  |a Supstitucija  |a Gvanidin  |a Diels-Alderova reakcija  |a Cikloadicija  |a Kompleksni spojevi  |a Kvantno-kemijski računi  |a Elektronska struktura  |a Fizikalno-kemijska svojstva 
700 1 |a Barešić, Luka  |4 aut 
700 1 |a Glasovac, Zoran  |4 aut 
700 1 |a Margetić, Davor  |4 aut 
773 0 |t Croatica chemica acta (Online)  |x 1334-417X  |g 92 (2019), 2 ; str. 279-286  |w nsk.(HR-ZaNSK)000255036 
981 |b Be2019  |b B05/19 
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856 4 0 |u https://doi.org/10.5562/cca3570 
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