Visible Light Promoted [3+2]-Cycloaddition for the Synthesis of Cyclopenta[b]chromenocarbonitrile Derivatives
Ewelina Kowalska,
Mateusz Dyguda,
Angelika Artelska
et al.
Abstract:In the manuscript,
a novel method for the preparation
of cyclopenta[
b
]chromenocarbonitrile derivatives
via [3+2] cycloaddition
reaction of substituted 3-cyanochromones and
N
-cyclopropyloamines
initiated by visible light catalysis has been described. The reaction
was performed in the presence of Eosin Y as a photocatalyst. The key
parameters responsible for the success of the described strategy are
visible light, a small amount of photoredox catalyst, an anhydrou… Show more
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