Lewis and Brønsted Acid Induced (3 + 2)-Annulation of Donor–Acceptor Cyclopropanes to Alkynes: Indene Assembly

(3 + 2)-Annulation of donor–acceptor cyclopropanes to alkynes induced by both Lewis and Brønsted acids has been developed. The reaction provides a rapid approach to functionalized indenes displaying intense visible emission (λmax = 430 nm, Φ = 0.28–0.34).

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Veröffentlicht in:	Organic letters 2015-02, Vol.17 (4), p.770-773
Hauptverfasser:	Rakhmankulov, Eduard R, Ivanov, Konstantin L, Budynina, Ekaterina M, Ivanova, Olga A, Chagarovskiy, Alexey O, Skvortsov, Dmitriy A, Latyshev, Gennadij V, Trushkov, Igor V, Melnikov, Mikhail Ya
Format:	Artikel
Sprache:	eng
Schlagworte:	Alkynes - chemistry Catalysis Cyclopropanes - chemistry Indenes - chemistry Lewis Acids - chemistry Molecular Structure Stereoisomerism
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	(3 + 2)-Annulation of donor–acceptor cyclopropanes to alkynes induced by both Lewis and Brønsted acids has been developed. The reaction provides a rapid approach to functionalized indenes displaying intense visible emission (λmax = 430 nm, Φ = 0.28–0.34).
ISSN:	1523-7060 1523-7052
DOI:	10.1021/ol5037562