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188290-36-0

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188290-36-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188290-36-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,2,9 and 0 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 188290-36:
(8*1)+(7*8)+(6*8)+(5*2)+(4*9)+(3*0)+(2*3)+(1*6)=170
170 % 10 = 0
So 188290-36-0 is a valid CAS Registry Number.

188290-36-0SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name Thiophene(SIV)

1.2 Other means of identification

Product number -
Other names -

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:188290-36-0 SDS

188290-36-0Relevant articles and documents

The photoinduced reaction of 2-iodothiophene in solutions of n-heptane, dichloromethane and methanol

Herrera,Nieto,Olleta,Lane

, p. 398 - 406 (2011)

The photoinduced reaction of 2-iodothiophene in n-heptane, dichloromethane and methanol was studied at room temperature from experiments carried out with degassed solutions. The photoproducts of the reaction were mainly thiophene and small amounts of iodine in all three solvents used. The concentration of 2-iodothiophene decreases throughout photolysis, following a first-order rate law and the pseudo-first-order rate constants were determined in the three solvents used. The photochemistry of the system was quantified determining the quantum yields of 2-iodothiophene consumption and thiophene formation in n-heptane solutions. The results show that under the experimental conditions of this research, products deriving only from the reaction of the thienyl radical were observed. To support the experimental results, calculations were performed of the ionization potential of the thienyl radical, electron affinity of the iodine atom and free energy of solvation of the corresponding iodide and carbocation in the different solvents used. Copyright

UNEXPECTED FORMATION OF 2-ETHYLTHIOPHENE BY THERMOLYSIS OF 1,1-DIPROPENYLSULFIDE

Korchevin, N. A.,Ostroukhova, L. A.,Musorin, G. K.,Nosyreva, V. V.,Amosova, S. V.,et al.

, p. 466 (1988)

-

-

Ryashentseva et al.

, (1972)

-

High-Temperature Synthesis of 1,2-Dithiol-3-One

Ostroukhova, L. A.,Turchaninova, L. P.,Korchevin, N. A.,Deryagina, E. N.,Voronkov, M. G.

, p. 824 (1988)

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Competitive carbon-sulfur vs carbon-carbon bond activation of 2-cyanothiophene with [Ni(dippe)H]2

Grochowski, Matthew R.,Li, Ting,Brennessel, William W.,Jones, William D.

, p. 12412 - 12421 (2010)

The processes of C-C and C-S bond cleavage have been studied with the homogeneous organometallic compound [Ni(dippe)H]2 (1). When 1 is reacted with 2-cyanothiophene at room temperature, cleavage of the nitrile-substituted C-S bond occurs, forming the Ni-metallacycle complex (dippe)Ni(κ2-S,C-SCH=CHCH=C(CN)) (2a), which has been fully characterized by NMR spectroscopy and X-ray diffraction. 2a was converted to the C-CN cleavage product (dippe)Ni(CN)(2-thiophenyl) (3) when heated in solution. On closer inspection, four other intermediates were observed by 31P NMR spectroscopy at low temperature. Structures for the intermediates were elucidated through a combination of independent synthesis, theoretical calculations, chemical characterization, and experimental precedent. A kinetic product (dippe)Ni(κ2-S,C-SC(CN)=CHCH=CH) (2b) was formed from cleavage of the nonsubstituted C-S bond, as well as a Ni(0) η2- nitrile intermediate, (dippe)Ni(η2-C,N-2-cyanothiophene) (4), and a dinuclear mixed Ni(0)-Ni(II) product (6b). A complete DFT analysis of this system has been carried out to reveal comparative details about the two bond cleavage transition states.

-

Deryagin et al.

, (1979)

-

CHROMIUM OXIDE CATALYSTS WITH LOW VALENCE STATE IONS FOR HETEROCYCLIC RING ROFMATION

Ryashentseva, M. A.,Belanova, E. P.,Slovetskaya, K. I.,Aleshin, E. G.

, p. 710 - 712 (1986)

-

NEW METHOD FOR THE PREPARATION OF THIOPHENE

Voronkov, M. G.,Trofimov, B. A.,Kryuchkov, V. V.,Amosova, S. V.,Skvortsov, Yu. M.,et al.

, p. 1249 (1981)

-

-

Tomkinson, M. G.

, p. 2264 - 2266 (1924)

-

Radical Hydrodehalogenation of Aryl Halides with H2 Catalyzed by a Phenanthroline-Based PNNP Cobalt(I) Complex

Jheng, Nai-Yuan,Ishizaka, Yusuke,Naganawa, Yuki,Minami, Yasunori,Sekiguchi, Akira,Iizuka, Kosuke,Nakajima, Yumiko

, p. 2320 - 2329 (2022/02/16)

Radical hydrodehalogenation of aryl halides (Ar-X; X = Cl, Br, I) is achieved in the presence of atmospheric pressure H2 as a H-atom donor using a Co(I) catalyst bearing a phenanthroline-based PNNP ligand (2,9-bis((diphenylphosphanyl)methyl)-1,10-phenanthroline). The reaction proceeds under mild conditions (1 atm H2) and is applicable to aryl bromides and aryl chlorides with various functional groups. A mechanistic study revealed that the PNNP-Co complex underwent facile H-H cleavage and facilitated a H-atom transfer. This process is mediated by a long-range metal-ligand cooperation of the PNNP-Co system, which includes the dearomatization/aromatization sequence of the phenanthroline ligand backbone. A radical clock experiment demonstrated the Ar-X bond cleavage via a radical mechanism. Further kinetic study supported that the rate-determining step includes electron transfer from the Co center to the substrate, affording a radical pair ArX?- and an odd-electron metal-halide complex [Co(II) + ArX?-]? as a transition state.

Cyclometalated Platinum(II) Complexes with Donor-Acceptor-Containing Bidentate Ligands and Their Application Studies as Organic Resistive Memories

Poh, Wei Church,Au-Yeung, Ho-Leung,Chan, Alan Kwun-Wa,Hong, Eugene Yau-Hin,Cheng, Yat-Hin,Leung, Ming-Yi,Lai, Shiu-Lun,Low, Kam-Hung,Yam, Vivian Wing-Wah

supporting information, p. 3669 - 3676 (2021/09/29)

A series of heteroleptic cyclometalated platinum(II) complexes, [Pt(C^N)(O^O)], (1–10) with various donors and acceptors has been synthesized and characterized by 1H NMR spectroscopy, elemental analyses, infrared spectroscopy and mass spectrometry. The X-ray structure of 2 has also been determined. The electrochemical and photophysical properties of the platinum(II) complexes were studied. These experimental results have been supported by computational studies. Furthermore, two of the complexes have been employed as the active material in the fabrication of resistive memory devices, exhibiting stable binary memory performance with low operating voltage, high ON/OFF ratio and long retention time.

Nucleophilic C-H Etherification of Heteroarenes Enabled by Base-Catalyzed Halogen Transfer

Bandar, Jeffrey S.,Klaus, Danielle R.,Puleo, Thomas R.

supporting information, p. 12480 - 12486 (2021/08/24)

We report a general protocol for the direct C-H etherification of N-heteroarenes. Potassium tert-butoxide catalyzes halogen transfer from 2-halothiophenes to N-heteroarenes to form N-heteroaryl halide intermediates that undergo tandem base-promoted alcohol substitution. Thus, the simple inclusion of inexpensive 2-halothiophenes enables regioselective oxidative coupling of alcohols with 1,3-azoles, pyridines, diazines, and polyazines under basic reaction conditions.

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