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Thiophene, 3,4-dibromo-2,5-diphenyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

874511-95-2

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874511-95-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 874511-95-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,4,5,1 and 1 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 874511-95:
(8*8)+(7*7)+(6*4)+(5*5)+(4*1)+(3*1)+(2*9)+(1*5)=192
192 % 10 = 2
So 874511-95-2 is a valid CAS Registry Number.

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

-

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.

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