874511-95-2Relevant academic research and scientific papers
Preparation and characterization of nonclassical tetraazaporphyrin, bis(4-methylpyridine)[1,3,5,7,9,11,13,15-octaphenyltetra(3,4-thieno) tetraazaporphyrinato]ruthenium(II)
Kimura, Takeshi,Iwama, Takashi,Namauo, Toshiharu,Suzuki, Eiichi,Fukuda, Takamitsu,Kobayashi, Nagao,Sasamori, Takahiro,Tokitoh, Norihiro
, p. 888 - 894 (2011)
The tetramerization reaction of 2,5-diphenyl-3,4-dicyanothiophene (2) proceeded on treatment with ruthenium(III) trichloride, DBU, and 4-methylpyridine in 2-ethoxyethanol at 135 °C to give bis(4-methylpyridine) [1,3,5,7,9,11,13,15-octaphenyltetra(3,4-thie
Synthesis of Substituted Thiophenes through Dehydration and Heterocyclization of Alkynols
Chen, Lu,Chen, Zebin,Huang, Yubing,Ji, Xiaoliang,Li, Jiaming,Li, Jian,Li, Yibiao,Liu, Qiang,Liu, Yang
, p. 3555 - 3566 (2022/03/14)
A protocol was described for obtaining a variety of substituted thiophenes with functional potential via metal-free dehydration and sulfur cyclization of alkynols with elemental sulfur (S8) or EtOCS2K in moderate-to-good yields. The method provides the base-free generation of a trisulfur radical anion (S3?-) and its addition to alkynes as an initiator. This research broadens the applications of S3?-in the synthesis of sulfur-containing heterocycles.
Nitrogen heterocyclic compound and preparation method thereof, organic electroluminescent material containing nitrogen heterocyclic compound, luminescent layer and application of luminescent layer
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Paragraph 0054-0060, (2020/05/01)
The invention provides a nitrogen heterocyclic compound and a preparation method thereof, an organic electroluminescent material containing the nitrogen heterocyclic compound, a luminescent layer andan application of the luminescent layer . The nitrogen h
Pd-Catalyzed one-pot sequential cross-coupling reactions of tetrabromothiophene
Saini, Kapil Mohan,Saunthwal, Rakesh K.,Verma, Akhilesh K.
, p. 10289 - 10298 (2017/12/26)
Unsymmetrical one-pot sequential cross-coupling reactions of sterically hindered tetrabromothiophene with arylboronic acid and an alkyne/alkene to afford selective bi-, tri-, and tetrasubstituted aryl/alkynyl-thiophenes with the aid of a palladium catalys
Selective mono- to perarylations of tetrabromothiophene by a cyclobutene-1,2-diylbisimidazolium preligand
Rahimi, Alireza,Namyslo, Jan C.,Drafz, Martin H. H.,Halm, Julian,Huebner, Eike,Nieger, Martin,Rautzenberg, Nicola,Schmidt, Andreas
experimental part, p. 7316 - 7325 (2011/11/05)
(Cyclobut-1-ene-1,2-diyl)bis(1-methylimidazolium)tetrafluoroborate is applied as preligand in palladium-catalyzed cross-coupling reactions starting from tetrabromothiophene for the synthesis of mono-, bi-, tri-, and tetraaryl-substituted thiophenes bearin
Regioselective palladium(0)-catalyzed cross-coupling reactions and metal-halide exchange reactions of tetrabromothiophene: Optimization, scope and limitations
Tung, Dang Thanh,Tuan, Dang Thanh,Rasool, Nasir,Villinger, Alexander,Reinke, Helmut,Fischer, Christine,Langer, Peter
experimental part, p. 1595 - 1609 (2011/02/25)
The Suzuki reaction of tetrabromothiophene with arylboronic acids provides a regioselective approach to various 5-aryl-2,3,4-tribromothiophenes, symmetrical 2,5-diaryl-3,4-dibromothiophenes, and tetraarylthiophenes. Unsymmetrical 2,5-diaryl-3,4-dibromo thiophenes are prepared by Suzuki reaction of 5-aryl-2,3,4-tribromothiophenes. Tetraarylthiophenes containing two different types of aryl groups are obtained by Suzuki reactions of 2,5-diaryl-3,4- dibromothiophenes. During the optimization of the conditions of each individual reaction, the solvent, the catalyst and the temperature play an important role. In several cases, classical conditions.
Synthesis of tetraarylthiophenes by regioselective Suzuki cross-coupling reactions of tetrabromothiophene
Dang, Thanh Tuan,Rasool, Nasir,Dang, Thanh Tung,Reinke, Helmut,Langer, Peter
, p. 845 - 847 (2007/10/03)
Tetraarylthiophenes were prepared by regioselective Suzuki cross-coupling reactions of tetrabromothiophene.
