Theoretical investigation of Banert cascade reaction

Computational inside of Banert cascade reaction for triazole formation is studied with B3LYP/6-31G(d,p) level of theory. The reaction proceeds mainly by SN2 initial chloride displacement rather than SN2′-type attack. Furthermore, according to the rate of reaction calculation, SN2 displacement is muc...

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Main Authors: S. Bhattacharyya, K. Hatua
Format: Article
Language:English
Published: The Royal Society 2018-01-01
Series:Royal Society Open Science
Subjects:
Online Access:https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.171075
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author S. Bhattacharyya
K. Hatua
author_facet S. Bhattacharyya
K. Hatua
author_sort S. Bhattacharyya
collection DOAJ
description Computational inside of Banert cascade reaction for triazole formation is studied with B3LYP/6-31G(d,p) level of theory. The reaction proceeds mainly by SN2 initial chloride displacement rather than SN2′-type attack. Furthermore, according to the rate of reaction calculation, SN2 displacement is much faster than SN2′ displacement in the order of 8. The [3,3]-sigmatropic rearrangement for the conversion of propargyl azide into triazafulvene has been proved as the rate-determining step having highest activation energy parameter. Solvent effect on total course of reaction has been found negligible. Furthermore, effects of different density functional theory functionals and functional groups on activation energies of [3,3]-sigmatropic rearrangement of propargyl azide were also studied. BHHLYP, ωB97XD, M062X and BMK calculated ΔG‡ are consistent with B3LYP.
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spelling doaj.art-4a92ae08ba2a4b359c0a7b1551d3632a2022-12-22T01:13:27ZengThe Royal SocietyRoyal Society Open Science2054-57032018-01-015410.1098/rsos.171075171075Theoretical investigation of Banert cascade reactionS. BhattacharyyaK. HatuaComputational inside of Banert cascade reaction for triazole formation is studied with B3LYP/6-31G(d,p) level of theory. The reaction proceeds mainly by SN2 initial chloride displacement rather than SN2′-type attack. Furthermore, according to the rate of reaction calculation, SN2 displacement is much faster than SN2′ displacement in the order of 8. The [3,3]-sigmatropic rearrangement for the conversion of propargyl azide into triazafulvene has been proved as the rate-determining step having highest activation energy parameter. Solvent effect on total course of reaction has been found negligible. Furthermore, effects of different density functional theory functionals and functional groups on activation energies of [3,3]-sigmatropic rearrangement of propargyl azide were also studied. BHHLYP, ωB97XD, M062X and BMK calculated ΔG‡ are consistent with B3LYP.https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.171075triazolebanert cascadepropargyl chloridedensity functional theorypropargyl azide
spellingShingle S. Bhattacharyya
K. Hatua
Theoretical investigation of Banert cascade reaction
Royal Society Open Science
triazole
banert cascade
propargyl chloride
density functional theory
propargyl azide
title Theoretical investigation of Banert cascade reaction
title_full Theoretical investigation of Banert cascade reaction
title_fullStr Theoretical investigation of Banert cascade reaction
title_full_unstemmed Theoretical investigation of Banert cascade reaction
title_short Theoretical investigation of Banert cascade reaction
title_sort theoretical investigation of banert cascade reaction
topic triazole
banert cascade
propargyl chloride
density functional theory
propargyl azide
url https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.171075
work_keys_str_mv AT sbhattacharyya theoreticalinvestigationofbanertcascadereaction
AT khatua theoreticalinvestigationofbanertcascadereaction