Base-Catalyzed Intramolecular 5-exo-dig Cyclization of 2-Propynyl-1,3-dicarbonyl Compounds: An Atom-Economic Route to Stereodefined 2-Methylene-2,3-dihydrofurans

A new and straightforward base‐catalyzed 5‐exo‐trig cyclization of 2‐propynyl‐1,3‐dicarbonyl compounds leads to the corresponding stereodefined 2‐methylene‐2,3‐dihydrofurans in excellent yields. A regio‐ and stereoselective 5‐exo‐dig cyclization of 2‐propynyl‐1,3‐dicarbonyl compounds under metal‐fre...

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Veröffentlicht in:	European journal of organic chemistry 2014-08, Vol.2014 (23), p.4999-5003
Hauptverfasser:	Ma, Quan, Wang, Yeming, Zhao, Yuegang, Liao, Peiqiu, Sun, Bo, Bi, Xihe
Format:	Artikel
Sprache:	eng
Schlagworte:	Alkynes Base catalysis Cyclization Intramolecular reactions Oxygen heterocycles Spiro compounds
Online-Zugang:	Volltext
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