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Cover Picture: Cycloaddition Reactions: Why Is It So Challenging To Move from Six to Ten Electrons? (Angew. Chem. Int. Ed. 34/2017)
Author(s) -
Palazzo Teresa Ann,
Mose Rasmus,
Jørgensen Karl Anker
Publication year - 2017
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201706514
Subject(s) - cycloaddition , atomic orbital , chemistry , physics , electron , quantum mechanics , catalysis , organic chemistry
Celebrating cycloaddition reactions with numbers and orbitals: The orbital interaction diagrams for [4+2], [6+4], and [8+2] cycloaddition reactions in the paintings on the wall look simple. However, in reality, it is challenging to move from six to ten electrons for cycloaddition reactions as is discussed by K. A. Jørgensen et al. in their Essay on page 10033 ff. Being successful with [6+4] and [8+2] higher‐order cycloaddition reactions deserves a toast and celebrations—as Angewandte Chemie celebrates the 80th birthday of Roald Hoffmann—as illustrated by the flowers with a very special shape and several contributions in this issue.