An efficient phosphine-free direct C–Harylation of thiophenes at the α-position has been developed at low catalyst loading of bis(alkoxo)palladium complex (Cat.I, 0.1–0.2 mol %). The developed synthetic method can be applied to the synthesis of α-aryl/heteroaryl thiophenes from aryl or heteroaryl bromides in good to excellent yields and is compatible with the substrates bearing electron-donating or
[EN] AMPHIPHILIC AND MESOGENIC ORGANIC DYES FOR TAILOR-MADE REFLECTIVE LOW-DIMENSIONAL MATERIALS<br/>[FR] COLORANTS ORGANIQUES AMPHIPHILES ET MÉSOGÈNES POUR MATÉRIAUX TRIDIMENSIONNELS RÉFLÉCHISSANTS FABRIQUÉS SUR MESURE
申请人:CENTRE NAT RECH SCIENT
公开号:WO2020008052A1
公开(公告)日:2020-01-09
The present invention relates to a compound of the following formula (I): (I). The invention also relates to uses thereof as dye or pigment, notably as a luster pigment. The invention relates also to a reflective or photonic or nanophotonic or optoelectronic device comprising a compound of the invention. The invention relates also to a metal-like reflective coating,a metal-like particle or an organic-based metal-like liquid film comprising a compound of the invention.
Iridium Catalysis for CH Bond Arylation of Heteroarenes with Iodoarenes
作者:Benoît Join、Takuya Yamamoto、Kenichiro Itami
DOI:10.1002/anie.200806358
日期:2009.5.4
Efficient couplings using equimolar quantities of each coupling partner and multiple CHbondarylation reactions are achieved with an Ir‐based catalytic system for the CHbondarylation of electron‐rich heteroarenes with iodoarenes to construct extended π‐systems. The dramatic ligand effect on reaction efficiency leads to the discovery that Crabtree's catalyst (see scheme) is the optimal catalyst
Benzenesulfonyl chlorides: new reagents for access to alternative regioisomers in palladium-catalysed direct arylations of thiophenes
作者:Kedong Yuan、Henri Doucet
DOI:10.1039/c3sc52420e
日期:——
The palladium-catalysedcoupling of benzenesulfonylchlorides with thiophene derivatives allows regioselective access to β-arylated thiophenes. The reaction proceeds with easily accessible catalyst, base and substrates, without oxidant or ligand and tolerates a variety of substituents on both the benzene and thiophene moieties.
USE OF SUBSTITUTED PERYLENES IN ORGANIC SOLAR CELLS
申请人:KÖNEMANN Martin
公开号:US20110308592A1
公开(公告)日:2011-12-22
The present invention relates to an organic solar cell with a photoactive region which comprises at least one organic donor material in contact with at least one organic acceptor material, wherein the donor material and the acceptor material form a donor-acceptor heterojunction and wherein the photoactive region comprises at least one substituted perylene.