European Journal of Organic Chemistry
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Dihydroazulene/Vinylheptafulvene Photoswitch: Ultrafast Back Reaction Induced by Dihydronaphthalene Annulation (Eur. J. Org. Chem. 19/2015)
The cover picture shows that vinylheptafulvenes locked in a reactive conformation undergo ultrafast ring closure to dihydroazulenes – a rate enhancement by up to 950000 fold was observed relative to the ring closure of the unlocked molecule. In the article by S. L. Broman et al. on 4119 ff, the synthesis and studies of such molecules are presented. By incorporation of a triflate group, the system could be further functionalized using metal-catalyzed cross-coupling reactions. Attachment of sulfur end-capping groups was thereby achieved, which may allow for future anchoring of the molecule in molecular electronics junctions.