Intramolecular diels-alder reaction of cyclopropenyl vinylarenes: access to benzonorcarane derivatives

Intramolecular Diels-Alder vinylarene reaction (IMDAV) is a [4 + 2] cycloaddition that employs styrene derivatives as conjugated dienes, whose poor reactivity arises from the required loss of aromaticity, which is recovered by a subsequent [1,3]-H shift. Herein, we describe the use of cyclopropene a...

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Detalles Bibliográficos
Autores: Martínez, Ángel Manu, Puet, Alejandro, Domínguez, Gema, Castro-Biondo, Rodrigo, Pérez-Castells, Javier, Alonso Montero, María Inés
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/715249
Acceso en línea:http://hdl.handle.net/10486/715249
https://dx.doi.org/10.1021/acs.orglett.3c01864
Access Level:acceso abierto
Palabra clave:Addition reactions
Aromatic compounds
Cyclization
Hydrocarbons
Stereoselectivity
Química
Descripción
Sumario:Intramolecular Diels-Alder vinylarene reaction (IMDAV) is a [4 + 2] cycloaddition that employs styrene derivatives as conjugated dienes, whose poor reactivity arises from the required loss of aromaticity, which is recovered by a subsequent [1,3]-H shift. Herein, we describe the use of cyclopropene as a dienophile, harnessing its strain energy to drive the IMDAV reaction. Benzonorcarane scaffolds form in good yields, excellent stereoselectivity, and broad functional tolerance. Theoretical calculations and NMR studies have revealed significant mechanistic insights