The metal-free preparation of diazoalkanes through the ringrearrangement of bicyclic triazolines is reported here. Their use in 1,3-dipolar cycloaddition reactions with electron-withdrawing alkenes wasinvestigated. This synthetic procedure allows differently substitutedpyrazolines to be obtained in few steps and with high atom economy.
Diastereoselective Synthesis of Pyrazolines by Metal-Free Rearrangement of Bicyclic Triazolines / R. Bucci, F. Clerici, S. Pellegrino, E. Erba. - In: SYNTHESIS. - ISSN 0039-7881. - 52:19(2020 Oct 16), pp. 2892-2898.
Titolo: | Diastereoselective Synthesis of Pyrazolines by Metal-Free Rearrangement of Bicyclic Triazolines |
Autori: | BUCCI, RAFFAELLA (Primo) CLERICI, FRANCESCA (Secondo) ERBA, EMANUELA (Ultimo) (Corresponding) |
Parole Chiave: | diazoalkanes, pyrazolines, amidines, 1,3-dipolar cycloaddi-tion, triazoline rearrangement, metal-free reactions, diastereoselectivi-ty, atom economy; |
Settore Scientifico Disciplinare: | Settore CHIM/06 - Chimica Organica |
Data di pubblicazione: | 16-ott-2020 |
Rivista: | |
Tipologia: | Article (author) |
Data ahead of print / Data di stampa: | 14-set-2020 |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1055/s-0040-1707173 |
Appare nelle tipologie: | 01 - Articolo su periodico |
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