182346-79-8Relevant academic research and scientific papers
Synthesis of new sulfur heteroaromatics isoelectronic with dibenzo[g,p]chrysene by photocyclization of thienyl- and phenyl-substituted ethenes
Fischer, Erik,Larsen, Jan,Christensen, Jorn B.,Fourmigue, Marc,Madsen, Hans G.,Harrit, Niels
, p. 6997 - 7005 (1996)
A series of new sulfur heteroarenes, isoelectronic with dibenzo[g,p]chrysene, have been prepared by double photocyclization of the corresponding tetraaryl substituted ethenes. The first step proceeds efficiently in each case, and the corresponding intermediate sulfur heteroarenes, isoelectronic with phenanthrene, have been isolated. The second ring closure is only efficient when one of the participating aryl substituents is thienyl, which thus manifests a higher electron density on the carbon atom involved in the excited singlet state reaction. Most of the new compounds are of minimal solubility in common solvents and do not display improved electron donor properties otherwise commonly found among heteroaromatics.
General synthetic approach toward geminal-substituted tetraarylethene fluorophores with tunable emission properties: X-ray crystallography, aggregation-induced emission and piezofluorochromism
Zhang, Guo-Feng,Wang, Hongfeng,Aldred, Matthew P.,Chen, Tao,Chen, Ze-Qiang,Meng, Xianggao,Zhu, Ming-Qiang
, p. 4433 - 4446 (2014)
A general approach to the design and synthesis of a new series of geminal-substituted tetraarylethene (g-TAE) chromophores with aggregation-induced emission (AIE) properties has been developed via Corey-Fuchs reaction and subsequent Suzuki/Stille coupling
New applications of hetaryl thioketones for the synthesis of hetaryl-substituted ethenes via 'two-fold extrusion reaction'
Mlostoń, Grzegorz,Urbaniak, Katarzyna,Pawlak, Aneta,Heimgartner, Heinz
, p. 127 - 139 (2017/03/14)
A series of aryl/hetaryl thioketones was applied for the reactions with aryl/hetaryldiazomethanes yielding, after elimination of N2, the corresponding thiiranes. The relatively unstable dihetaryldiazomethanes were generated in situ from the corresponding hydrazones by oxidation with DMSO. The obtained thiiranes were converted into tetraaryl/hetaryl-substituted ethenes in good yields by desulfurization performed with tris(diethylamino)phosphine ((Et2N)3P).
