Synthesis ofC3-Symmetric Nano-Sized Polyaromatic Compounds by Trimerization and Suzuki−Miyaura Cross-Coupling Reactions
作者:Sambasivarao Kotha、Dhurke Kashinath、Kakali Lahiri、Raghavan B. Sunoj
DOI:10.1002/ejoc.200400257
日期:2004.10
Various C3-symmetric molecules were prepared by trimerization of acetyl aromatic compounds and subsequently coupled with various boronic acids under Pd0 catalysis conditions to generate oligoaryl/-heteroaryl C3-symmetric molecules. Several furan- and thiophene-containing star-shaped molecules were prepared by the use of Suzuki−Miyauracross-coupling as a key step. Structural and conformational details
The acid catalysed triple self-condensation of 1-thien-2-ylethanone (2-acetylthiophene) and five relatedcompounds is presented. Tetrachlorosilane used as the Lewis acid produces dry hydrogen chloride which catalyzes the self-condensation process. Depending on the reaction conditions and the substitution of the carbonyl substrates, the reaction can proceed as a [2+2+2] cyclotrimerization towards C3-symmetric
Interplay between Aryl···Perfluoroaryl and Hydrogen Bonding Interactions in Cocrystals of Pentafluorophenol with Molecules of Trigonal Symmetry
作者:Jan Alfuth、Jarosław Chojnacki、Tadeusz Połoński、Aleksander Herman、Maria J. Milewska、Teresa Olszewska
DOI:10.1021/acs.cgd.2c00276
日期:2022.5.4
triaryl compounds with pentafluorophenol (pfp) were prepared and structurally characterized by the single-crystal X-ray diffraction method. Cocrystallization of pfp with planar (or almost planar) compounds gave six 3:1 molecular complexes with well-defined layered structures. The layers are composed of alternating pfp3 trimers, linked by hydrogen bonding, and triaryl molecules held together in planes by the
An organic electroluminescent device, which has, between a pair of electrodes, at least one organic layer including a light-emitting layer, in which the organic layer contains a specific tetraphenylene compound, and in which the light-emitting layer contains a phosphorescent material; and a specific tetraphenylene compound that can be used in the device.
STAR-SHAPED COMPOUNDS FOR ORGANIC SOLAR CELLS
申请人:Nutz Eva
公开号:US20140027746A1
公开(公告)日:2014-01-30
The present invention relates to compounds of the general formula (I) The present invention also relates to a process for the preparation of such compounds, the compounds obtainable by this process, the use of these compounds, semiconducting layers and electronic components.