Conditions allowing the C10‐ and C11‐arylations of dibenzo[b,f]azepines via successive palladium‐catalyzed reactions are reported. Using aryl bromides as the aryl source, the C10‐arylation of dibenzo[b,f]azepines is very selective. Then, usingbenzenesulfonylchlorides as the aryl source, the second arylation at C11‐position is achieved affording non‐symmetrical C10,C11‐diarylated dibenzo[b,f]azepines
[EN] NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME<br/>[FR] NOUVEAUX COMPOSÉS ÉLECTROLUMINESCENTS ORGANIQUES ET DISPOSITIF ÉLECTROLUMINESCENT ORGANIQUE LES UTILISANT
申请人:ROHM & HAAS ELECT MAT
公开号:WO2011105700A1
公开(公告)日:2011-09-01
Provided are novel organic electroluminescent compounds, and organic electroluminescent devices comprising the same. Since the organic electroluminescent compounds exhibit high luminous efficiency in blue color, and excellent life property of the material, they may be used to manufacture OLEDs having very good operation life.
Mild Radical Oxidative sp3-Carbon–Hydrogen Functionalization: Innovative Construction of Isoxazoline and Dibenz[b,f]oxepine/azepine Derivatives
作者:Olga Mancheño、Andrea Gini
DOI:10.1055/s-0035-1560908
日期:——
hydroxylamines and for the synthesis of dibenz[b,f]oxepines, dibenzo[b,f]thiepines, and dibenz[b,f]azepines from simple xanthenes, thioxanthenes, and acridanes, respectively. 1 Introduction 2 2,2,6,6-Tetramethylpiperidinyloxyl-Mediated Dehydrogenative Formation and Trapping of Unstable Nitrones: Synthesis of N-Alkoxycarbonyl-Protected Isoxazoline Derivatives 3 Oxidative sp3-Carbon–Hydrogen Bond Functionalization
Palladium-Catalyzed N-Arylation of Iminodibenzyls and Iminostilbenes with Aryl- and Heteroaryl Halides
作者:Wenliang Huang、Stephen L. Buchwald
DOI:10.1002/chem.201603449
日期:2016.9.26
Compounds containing the iminodibenzyl and iminostilbene ring systems are prevalent in medicinal targets and functional materials. Herein, we report palladium‐catalyzed conditions for the N‐arylation of these ring systems. This protocol could be applied to a variety of (hetero)aryl chloride and bromide substrates, including ones, which are sterically hindered or those containing a variety of functional
Oxidative CH Bond Functionalization and Ring Expansion with TMSCHN<sub>2</sub>: A Copper(I)-Catalyzed Approach to Dibenzoxepines and Dibenzoazepines
作者:Tobias Stopka、Leyre Marzo、Mercedes Zurro、Simon Janich、Ernst-Ulrich Würthwein、Constantin G. Daniliuc、José Alemán、Olga García Mancheño
DOI:10.1002/anie.201411726
日期:2015.4.20
research. However, their syntheses are generally rather tedious, requiring several steps that involve a Wagner–Meerwein‐type rearrangement under harsh conditions. Herein, we present the first copper(I)‐catalyzedoxidative CH bond functionalization and ring expansion with TMSCHN2 to yield these important derivatives in a facile and straightforward way.