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Back Cover: Facile Synthesis of Polycyclic Pentalenes with Enhanced Hückel Antiaromaticity (Angew. Chem. Int. Ed. 12/2017)
Author(s) -
Oshima Hiroya,
Fukazawa Aiko,
Yamaguchi Shigehiro
Publication year - 2017
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.201701354
Subject(s) - antiaromaticity , pentalene , aromaticity , chemistry , benzene , friedel–crafts reaction , photochemistry , computational chemistry , organic chemistry , molecule , catalysis
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 on page 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.