Various 1-azaazulenes are synthesized from cycloheptatrienylmethyl ketone O-pentafluorobenzoyloximes by treatment with a catalytic amount of Pd(dba)2–t-Bu3P (dba = dibenzylideneacetone) and triethy...
Substituted 1-azaazulenes are synthesized from cycloheptatrienylmethyl ketone O-pentafluorobenzoyloximes by the intramolecular Heck-type amination catalyzed by Pd(dba)2–(t-Bu)3P.
The inter-and intramolecular addition of aromatic ketone triplets to quadricyclenes
作者:A.J.G. Barwise、A.A. Gorman、R.L. Leyland、C.T. Parekh、P.G. Smith
DOI:10.1016/0040-4020(80)87008-6
日期:——
Irradiation of acetophenone or benzophenone in the presence of norbornadiene or quadricyclene gives 1: 1-adducts. These arise via reaction of the ketone triplet with the quadricyclene. Similar reactivity is exhibited in an intramolecular sense by 7-phenacylnorbornadiene and the corresponding quadricyclene. Addition of tripletbenzophenone to 5-methylene norbornene is regiospecific in contrast to expectations
Ring Contraction of Tropylium Ions into Benzenoid Derivatives
作者:Demelza J. M. Lyons、An H. Dinh、Nhan N. H. Ton、Reece D. Crocker、Binh Khanh Mai、Thanh Vinh Nguyen
DOI:10.1021/acs.orglett.2c00663
日期:2022.4.8
We report a method to convert substituted tropylium ions into benzenoid derivatives.
我们报告了一种将取代的 tropylium 离子转化为 benzenoid 衍生物的方法。
Towards Solar Energy Storage in the Photochromic Dihydroazulene-Vinylheptafulvene System
作者:Martina Cacciarini、Anders B. Skov、Martyn Jevric、Anne S. Hansen、Jonas Elm、Henrik G. Kjaergaard、Kurt V. Mikkelsen、Mogens Brøndsted Nielsen
DOI:10.1002/chem.201500100
日期:2015.5.11
energy‐releasing VHF to DHA back‐reaction. In fact, experimentally, these new derivatives were so reluctant to undergo the back‐reaction at room temperature that they practically behaved as DHA to VHF one‐way switches. Although lifetimes of years are at first attractive, which offers the ultimate control of energy release, for a real device it must of course be possible to trigger the back‐reaction, which calls for