173392-87-5Relevant articles and documents
Suzuki-Miyaura reaction of chloroarenes using Pd(PPh3) 4 as catalyst
Thiemann, Thies,Tanaka, Yasuko,Hisaindee, Soleiman,Kaabi, Maitha
experimental part, p. 34 - 38 (2010/06/16)
The reactivity of a number of chloroarenes was investigated and chloro-nitroarenes were found to undergo facile arylation with Pd(PPh 3)4 / [Pd(PPh3)2Cl 2/n.PPh3] as catalyst. Furthermore, 4-chlorobenzaldehyde underwent arylation under the conditions, albeit with a higher catalyst loading.
Highly efficient syntheses of 3-aryl-2-cycloalken-1-ones and an evaluation of their liquid crystalline properties
Marson,Farrand,Brettle,Dunmur
, p. 4377 - 4381 (2007/10/03)
Cycloalkenones are shown to be mesogens and can be synthesised in near quantitative yields by a convergent palladium(0)-catalysed cross-coupling strategy; a 2-methyl group induces a change of phase from smectic to nematic.
The X-ray crystal structures and computational analysis of NH...π hydrogen bonded banana-shaped carbazole derivatives and thermal analysis of higher mesogenic homologues
Belloni, Maura,Manickam,Ashton, Peter R.,Kariuki, Benson M.,Preece, Jon A.,Spencer, Neil,Wilkie, John
, p. 17 - 35 (2007/10/03)
The synthesis of a series of banana-shaped mesogenic structures has been carried out, in which the bend unit is formed by the 3,6-substitution of carbazole by 4-alkoxyphenyl moieties. The crystal structures of the methoxy and propyloxy derivatives are reported with an analysis of the N-H...π interactions that are observed in the crystalline state. This analysis was aided by semi-empirical molecular orbital calculations. Additionally, the thermal analysis of the complete series has been carried out in order to investigate the phase properties of these materials. The 4-nonyloxyphenyl derivative displays two melting points by DSC and normal light microscopy, but yields non-birefringent liquids. The incorporation of photorefractive molecular units, such as carbazole. into anisotropic materials may offer many advantages over conventional electrical poling of photorefractive polymers.