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Bou Zeid S, Eid S, Najjar F, Macé A, Rivilla I, Cossío FP, Dorcet V, Roisnel T, Carreaux F. Microwave‐Assisted 1,3‐Dioxa‐[3,3]‐Sigmatropic Rearrangement of Substituted Allylic Carbamates: Application to the Synthesis of Novel 1,3‐Oxazine‐2,4‐dione Derivatives. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Samar Bou Zeid
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 35000 Rennes France
- Department of Biologychemistry and Biochemistry Laboratoire d'innovation Thérapeutique Lebanese University faculty of Sciences II Fanar Lebanon
| | - Samar Eid
- Department of Biologychemistry and Biochemistry Laboratoire d'innovation Thérapeutique Lebanese University faculty of Sciences II Fanar Lebanon
| | - Fadia Najjar
- Department of Biologychemistry and Biochemistry Laboratoire d'innovation Thérapeutique Lebanese University faculty of Sciences II Fanar Lebanon
| | - Aurélie Macé
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 35000 Rennes France
| | - Ivan Rivilla
- Departamento de Química Orgánica I Centro de Innovación en Química Avanzada (ORFEO-CINQA) Facultad de Química Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU) and Donostia International Physics Center (DIPC) P° Manuel Lardizabal 3 20018 San Sebastián/Donostia Spain
- Ikerbasque Basque Fundation for Science 48009 Bilbao Spain
| | - Fernando P. Cossío
- Departamento de Química Orgánica I Centro de Innovación en Química Avanzada (ORFEO-CINQA) Facultad de Química Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU) and Donostia International Physics Center (DIPC) P° Manuel Lardizabal 3 20018 San Sebastián/Donostia Spain
| | - Vincent Dorcet
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 35000 Rennes France
| | - Thierry Roisnel
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 35000 Rennes France
| | - François Carreaux
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 35000 Rennes France
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2
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Pérez-Barcia Á, Peña-Gallego Á, Mandado M. Tracking the Transition from Pericyclic to Pseudopericyclic Reaction Mechanisms Using Multicenter Electron Delocalization Analysis: The [1,3] Sigmatropic Rearrangement. J Phys Chem A 2021; 125:8337-8344. [PMID: 34510896 PMCID: PMC8693182 DOI: 10.1021/acs.jpca.1c06620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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Herein,
the power of multicenter electron delocalization analysis
to elucidate the intricacies of concerted reaction mechanisms is brought
to light by tracking the transition of [1,3] sigmatropic rearrangements
from the high-barrier pericyclic mechanism in 1-butene to the barrierless
pseudopericyclic mechanism in 1,2-diamino-1-nitrosooxyethane. This
transition has been progressively achieved by substituting the migrating
group, changing the donor and acceptor atoms, and functionalizing
the alkene unit with weak and strong electron-donating and electron-withdrawing
groups. Fourteen [1,3] sigmatropic reactions with electronic energy
barriers ranging from 1 to 89 kcal/mol have been investigated. A very
good correlation has been found between the barrier and the four-center
electron delocalization at the transition state, the latter calculated
for the atoms involved in the four-centered ring adduct formed along
the reaction path. Surprisingly, the barrier has been found to be
independent of the bond strength between the migrating group and the
donor atom so that only the changes induced in the multicenter bonding
control the kinetics of the reaction. Additional insights into the
effect of atom substitution and group functionalization have also
been extracted from the analysis of the multicenter electron delocalization
profiles along the reaction path and qualitatively supported by the
topological analysis of the electron density.
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Affiliation(s)
- Álvaro Pérez-Barcia
- Department of Physical Chemistry, University of Vigo, Lagoas-Marcosende s/n, 36310 Vigo, Spain
| | - Ángeles Peña-Gallego
- Department of Physical Chemistry, University of Vigo, Lagoas-Marcosende s/n, 36310 Vigo, Spain
| | - Marcos Mandado
- Department of Physical Chemistry, University of Vigo, Lagoas-Marcosende s/n, 36310 Vigo, Spain
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3
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Agirre M, Henrion S, Rivilla I, Miranda JI, Cossío FP, Carboni B, Villalgordo JM, Carreaux F. 1,3-Dioxa-[3,3]-sigmatropic Oxo-Rearrangement of Substituted Allylic Carbamates: Scope and Mechanistic Studies. J Org Chem 2018; 83:14861-14881. [PMID: 30457341 DOI: 10.1021/acs.joc.8b01320] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An unexpected 1,3-dioxa-[3,3]-sigmatropic rearrangement during the treatment of aryl- and alkenyl-substituted allylic alcohols with activated isocyanates is reported. The reorganization of bonds is highly dependent on the electron density of the aromatic ring and the nature of isocyanate used. This metal-free tandem reaction from branched allyl alcohols initiated by a carbamoylation reaction and followed by a sigmatropic rearrangement thus offers a new access to ( E)-cinnamyl and conjugated ( E, E)-diene carbamates, such as N-acyl and N-sulfonyl derivatives. A computational study was conducted in order to rationalize this phenomenon, and a rearrangement progress kinetic analysis was performed.
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Affiliation(s)
- Maddalen Agirre
- Departamento de Química Orgánica I and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química , Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU) and Donostia International Physics Center (DIPC) , P° Manuel Lardizabal 3 , 20018 San Sebastián/Donostia , Spain
| | - Sylvain Henrion
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 , 263, avenue du Général Leclerc, Campus de Beaulieu , F-35000 Rennes , France
| | - Ivan Rivilla
- Departamento de Química Orgánica I and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química , Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU) and Donostia International Physics Center (DIPC) , P° Manuel Lardizabal 3 , 20018 San Sebastián/Donostia , Spain
| | - José I Miranda
- SGIker NMR Facility , Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU) , Avda. Tolosa 72 , E-20018 San Sebastián/Donostia , Spain
| | - Fernando P Cossío
- Departamento de Química Orgánica I and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química , Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU) and Donostia International Physics Center (DIPC) , P° Manuel Lardizabal 3 , 20018 San Sebastián/Donostia , Spain
| | - Bertrand Carboni
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 , 263, avenue du Général Leclerc, Campus de Beaulieu , F-35000 Rennes , France
| | - José M Villalgordo
- VillaPharma Research, Parque Tecnológico de Fuente Alamo , Ctra. El Estrecho-Lobosillo, Av. Azul , 30320 Murcia , Spain
| | - François Carreaux
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 , 263, avenue du Général Leclerc, Campus de Beaulieu , F-35000 Rennes , France
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4
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Ott AA, Packard MH, Ortuño MA, Johnson A, Suding VP, Cramer CJ, Topczewski JJ. Evidence for a Sigmatropic and an Ionic Pathway in the Winstein Rearrangement. J Org Chem 2018; 83:8214-8224. [PMID: 29870252 DOI: 10.1021/acs.joc.8b00961] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The spontaneous rearrangement of allylic azides is thought to be a sigmatropic reaction. Presented herein is a detailed investigation into the rearrangement of several allylic azides. A combination of experiments including equilibrium studies, kinetic analysis, density functional theory calculations, and selective 15N-isotopic labeling are included. We conclude that the Winstein rearrangement occurs by the assumed sigmatropic pathway under most conditions. However, racemization was observed for some cyclic allylic azides. A kinetic analysis of this process is provided, which supports a previously undescribed ionic pathway.
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Affiliation(s)
- Amy A Ott
- Department of Chemistry , University of Minnesota Twin Cities , Minneapolis , Minnesota 55455 , United States
| | - Mary H Packard
- Department of Chemistry , University of Minnesota Twin Cities , Minneapolis , Minnesota 55455 , United States
| | - Manuel A Ortuño
- Department of Chemistry , University of Minnesota Twin Cities , Minneapolis , Minnesota 55455 , United States
| | - Alayna Johnson
- Department of Chemistry , University of Minnesota Twin Cities , Minneapolis , Minnesota 55455 , United States
| | - Victoria P Suding
- Department of Chemistry , University of Minnesota Twin Cities , Minneapolis , Minnesota 55455 , United States
| | - Christopher J Cramer
- Department of Chemistry , University of Minnesota Twin Cities , Minneapolis , Minnesota 55455 , United States
| | - Joseph J Topczewski
- Department of Chemistry , University of Minnesota Twin Cities , Minneapolis , Minnesota 55455 , United States
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