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. [10.1055/s-0040-1707173]

Diastereoselective Synthesis of Pyrazolines by Metal-Free Rearrangement of Bicyclic Triazolines

R. Bucci
Primo
;
F. Clerici
Secondo
;
S. Pellegrino
Penultimo
;
E. Erba
Ultimo
2020

Abstract

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.
diazoalkanes, pyrazolines, amidines, 1,3-dipolar cycloaddi-tion, triazoline rearrangement, metal-free reactions, diastereoselectivi-ty, atom economy;
Settore CHIM/06 - Chimica Organica
16-ott-2020
14-set-2020
Article (author)
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/750317
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