123730-15-4Relevant academic research and scientific papers
COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
-
, (2016/09/12)
A compound represented by Formula 1 or Formula 2, and an organic light-emitting device including a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer and the compound represented by Formula 1 or Formula 2.
Low-Temperature Ag/Pd-catalyzed decarboxylative cross-coupling of aryl trflates with aromatic carboxylate salts
Goossen, Lukas J.,Lange, Paul P.,Rodriguez, Nuria,Linder, Christophe
supporting information; experimental part, p. 3906 - 3909 (2010/07/03)
Chemical Equation Presented At 50°C lower than the best known copper catalysts, a catalytic silver(I)/ palladium(II) system allows the decarboxylative cross-coupling of arenecarboxylates with aryl triflates at temper-atures as low as 120°C. Remarkably, polychlorinated and many heterocyclic arenecarboxylates are converted for the first time in high yields. FG = functional group.
Biaryl and aryl ketone synthesis via Pd-catalyzed decarboxylase coupling of carboxylate salts with aryl triflates
Goossen, Lukas J.,Linder, Christophe,Rodriguez, Nuria,Lange, Paul P.
supporting information; experimental part, p. 9336 - 9349 (2010/04/03)
A bimetallic catalyst system has been developed that for the first time allows the decarboxylative crosscoupling of aryl and acyl carboxylates with aryl triflates. In contrast to aryl halides, these electrophiles give rise to non-coordinating anions as byproducts, which do not interfere with the decarboxylation step that leads to the generation of the carbon nucleophilic crosscoupling partner. As a result, the scope of carboxylate substrates usable in this transformation was extended from ortho-substituted or otherwise activated derivatives to a broad range of ortho-, meta-, and para-substituted aromatic carboxylates. Two alternative protocols have been optimized, one involving heating the substrates in the presence of CuI/1,10- phenanthroline (10-15 mol %) and PdI2/phosphine (23 mol%) in NMP for 1-24 h, the other involving CuI/l,10-phenanthroline (615mol%) and PdBr2/Tol-BINAP (2 mol % ) in NMP using microwave heating for 5-10 min. While most products are accessible using standard heating, the use of microwave irradiation was found to be beneficial especially for the conversion of non-activated carboxylates with functionalized aryl triflates. The synthetic utility of the transformation is demonstrated with 48 examples showing the scope and limitations of both protocols. In mechanistic studies, the special role of microwave irradiation is elucidated, and further perspectives of decarboxylase crosscouplings are discussed.
Decarboxylative biaryl synthesis from aromatic carboxylates and aryl triflates
Goossen, Lukas J.,Rodriguez, Nuria,Linder, Christophe
supporting information; experimental part, p. 15248 - 15249 (2009/03/11)
A new catalyst system, generated in situ from Cu2O, 1,10-phenanthroline, PdI2, and Tol-BINAP, for the first time allows the decarboxylative coupling of carboxylic acids with aryl triflates. In contrast to previous decarboxylative couplings that remained limited to certain activated carboxylates, e.g., ortho-substituted benzoates, this halide-free protocol is generally applicable to aromatic carboxylic acid salts regardless of their substitution pattern. Copyright
Heterocyclic mesomeric betaines. Part 2. Synthesis of a hetero derivative of the benzo[b]phenalenide anion
Ollis, W. David,Stanforth, Stephen P.,Ramsden, Christopher A.
, p. 953 - 956 (2007/10/02)
Reductive cyclization of 2,4-dimethyl-8-(2-nitrophenyl)quinoline with hot triethyl phosphite afforded 2,4-dimethyl-7H-pyrido[3,2-c]carbazole (10) and 4,6-dimethyl-6aλ5,7-diazabenz[de]anthracen-6a-ium-7-ide (4; R = Me). The latter is the first example of a conjugated heterocyclic mesomeric betaine isoconjugate with the benzo[b]phenalenide anion.
