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Back Cover: Scope and Mechanism of the (4+3) Cycloaddition Reaction of Furfuryl Cations (Angew. Chem. Int. Ed. 50/2011)
Author(s) -
Winne Johan M.,
Catak Saron,
Waroquier Michel,
Van Speybroeck Veronique
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201106645
Subject(s) - cycloaddition , cationic polymerization , chemistry , cover (algebra) , scope (computer science) , reaction mechanism , diene , polymer chemistry , organic chemistry , catalysis , computer science , mechanical engineering , natural rubber , engineering , programming language
The method of choice for the preparation of six‐membered rings is (4 + 2) cycloaddition. The isoelectronic (4 + 3) cycloaddition between a diene and an allyl cation gives seven‐membered rings, but the synthesis of suitable cationic reaction partners is challenging. In their Communication on page 11990 ff. , J. M. Winne et al. report a novel synthetic method that uses furfuryl alcohols as three‐carbon dienophiles for the rapid assembly of cycloheptenes.