Back Cover: Facile Synthesis of Polycyclic Pentalenes with Enhanced Hückel Antiaromaticity (Angew. Chem. Int. Ed. 12/2017). Issue 12 (24th February 2017)

• Record Type: Journal Article
• Authors: Oshima, Hiroya; Fukazawa, Aiko; Yamaguchi, Shigehiro
• Is Part Of: Angewandte Chemie international edition. Volume 56:Issue 12(2017)
• Page Start: 3394
• Page End: 3394
• Publication Date: 2017-02-24
• Subjects: antiaromaticity -- π-conjugation -- dehydroannulenes -- pentalenes -- transannular cyclization; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201701354
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract : Pentalene with eight π electrons shows pronounced antiaromaticity. When the scaffold is stabilized by fused benzene rings, this structure loses the inherent antiaromaticity. In their Communication onpage 3270 ff., H. Oshima, A. Fukazawa, and S. Yamaguchi report a strategy for restoring the lost antiaromaticity in the dibenzo[ a, e ]pentalene. Fusion with four highly aromatic rings at the peripheral positions gives rise to enhanced antiaromaticity.