Synthesis of Fluoranthenes and Indenocorannulenes: Elucidation of Chiral Stereoisomers on the Basis of Static Molecular Bowls
作者:Yao-Ting Wu、Tomoharu Hayama、Kim K. Baldridge、Anthony Linden、Jay S. Siegel
DOI:10.1021/ja058391a
日期:2006.5.1
aromatics. Fluoranthenes 9 (or 13) are easily accessible in good to excellent yields (75-99%; 18 examples) from the reaction of symmetric (or asymmetric) diynes 4 and alkynes 5 (or norbornadiene) in the presence of Wilkinson's catalyst. This formal [(2+2)+2] cycloaddition can also be applied to generate various indenocorannulenes 28 from 2,3-diethynylcorannulene derivatives 27 and alkynes 5. The indenocorannulenes
Gold‐Catalyzed Annulation of 1,8‐Dialkynylnaphthalenes: Synthesis and Photoelectric Properties of Indenophenalene‐Based Derivatives
作者:Sara Tavakkoli Fard、Kohei Sekine、Kaveh Farshadfar、Frank Rominger、Matthias Rudolph、Alireza Ariafard、A. Stephen K. Hashmi
DOI:10.1002/chem.202004846
日期:2021.2.15
Indenophenalene derivatives were obtained in moderate to high yields. In addition, the bidirectional gold‐catalyzed annulation of tetraynes provided even larger conjugated π‐systems. The optoelectronic properties of the products were also investigated.
Formal [(2+2)+2] and [(2+2)+(2+2)] Nonconjugated Dienediyne Cascade Cycloadditions
作者:Yao-Ting Wu、Anthony Linden、Jay S. Siegel
DOI:10.1021/ol0514799
日期:2005.9.1
graph Fluoranthene 2 and heptacycle 3 are easily accessible from the reaction of diyne 1 and norbornadiene (NBD) in the presence of the rhodium catalyst. The unusual [(2+2)+(2+2)] adduct 3 was confirmed by the X-ray crystal structure analysis.
Polycyclic Arene-Fused Selenophenes via Site Selective Selenocyclization of Arylethynyl Substituted Polycyclic Arenes
作者:Himadri S. Karmakar、Chandan Kumar、Neha Rani Kumar、Sarasija Das、Abhijeet R. Agrawal、Nani Gopal Ghosh、Sanjio S. Zade
DOI:10.1021/acs.joc.1c00689
日期:2021.9.17
understand the site selectivity in the selenophene formation reaction. The HOMO coefficient on the carbon adjacent to carbon having arylalkyne substituent of the polycyclic arene correlates with the selenocyclization tendency of the substrate. The wavelength of absorption and emission and quantum yield of emission increase with increasing the number of fused benzene rings in the polycyclic unit (from naphthalene