A Concomitant Allylic Azide Rearrangement/Intramolecular Azide–Alkyne Cycloaddition Sequence

Autor: Ruzhang Liu, Rakesh H. Vekariya, Jeffrey Aubé
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Organic Letters
ISSN: 1523-7052
1523-7060
Popis: An intramolecular Huisgen cycloaddition of an interconverting set of isomeric allylic azides with alkynes affords substituted triazoles in high yield. The stereoisomeric vinyl-substituted triazoloxazines formed depend on the rate of cycloaddition of the different allylic azide precursors when the reaction is carried out under thermal conditions. In contrast, dimerized macrocyclic products were obtained when the reaction was done using copper(I)-catalyzed conditions, demonstrating the ability to control the reaction products through changing conditions.
Databáze: OpenAIRE