Unexpected course of reaction between (E)-2-aryl-1-cyano-1-nitroethenes and diazafluorene: why is there no 1,3-dipolar cycloaddition?

ABSTRACT: Reactions between (E)-2-aryl-1-cyano-1-nitroethenes and diazafluorene lead to acyclic 2,3-diazabuta-1,3-diene derivatives, instead of the expected pyrazoline systems. DFT calculations suggest that this is a consequence of formation of zwitterionic structure in the first stage of the reacti...

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Detalles Bibliográficos
Autores principales: Jasiński, Radomir, Kula, Karolina, Kącka, Agnieszka, Mirosław, Barbara
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Vienna 2017
Materias:
Original Paper
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5387018/
https://www.ncbi.nlm.nih.gov/pubmed/28458402
http://dx.doi.org/10.1007/s00706-016-1893-5

Internet

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5387018/
https://www.ncbi.nlm.nih.gov/pubmed/28458402
http://dx.doi.org/10.1007/s00706-016-1893-5

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