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Pyridine, 2-[3,5-bis(trifluoromethyl)phenyl]- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

664989-77-9

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664989-77-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 664989-77-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,4,9,8 and 9 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 664989-77:
(8*6)+(7*6)+(6*4)+(5*9)+(4*8)+(3*9)+(2*7)+(1*7)=239
239 % 10 = 9
So 664989-77-9 is a valid CAS Registry Number.

664989-77-9Relevant academic research and scientific papers

Palladium-catalyzed cross-coupling reactions of 2-pyridylborates with air-stable HASPO religands

Ackermann, Lutz,Potukuchi, Harish K.

, p. 2852 - 2856 (2009)

A novel, air-stable TADDOLP(O)H derivative bearing electron-withdrawing substituents allows for efficient Suzuki-Miyaura cross-couplings with challenging electron-deficient 2-pyr-idylborates as nucleophiles.

Borenium-Catalyzed Reduction of Pyridines through the Combined Action of Hydrogen and Hydrosilane

Clarke, Joshua J.,Maekawa, Yuuki,Nambo, Masakazu,Crudden, Cathleen M.

supporting information, p. 6617 - 6621 (2021/09/02)

Mesoionic carbene-stabilized borenium ions efficiently reduce substituted pyridines to piperidines in the presence of a hydrosilane and a hydrogen atmosphere. Control experiments and deuterium labeling studies demonstrate reversible hydrosilylation of the pyridine, enabling full reduction of the N-heterocycle under milder conditions. The silane is a critical reaction component to prevent adduct formation between the piperidine product and the borenium catalyst.

N-heterocyclic carbene enabled rhodium-catalyzed ortho C(sp2)-H borylation at room temperature

Zhong, Lei,Zong, Zhi-Hong,Wang, Xi-Cun

supporting information, p. 2547 - 2552 (2019/03/27)

We report a rhodium-catalyzed ortho C(sp2)-H borylation of 2-phenylpyridines using commercially available N-heterocyclic carbenes (NHCs) as ligand and pinacolatodiboron (B2pin2) as borylating reagent. The reaction could take place at room temperature, tolerating a wide range of functionalities and affording ortho borylated products in moderate to excellent yields. The current method is also applicable to gram-scale reaction with reduced catalyst loading.

Organoiridium complex for organic electroluminescent elements

-

Paragraph 25; 26, (2018/02/02)

The present invention provides an organometallic complex having a high quantum efficiency even in a polymer thin film as a emitting material for organic electroluminescent (EL) element. The present invention relates to an organoiridium complex for an organic electroluminescent element represented by the following Formula; wherein a C—N ligand including two atomic groups (A1, A2), and a β-diketone ligand in line symmetry having two tert-butyl-substituted phenyl groups are coordinated with an iridium atom. The organoiridium complex of the present invention has a high quantum efficiency even in a polymer thin film with respect to green to yellow electroluminescence. (In the aforementioned Formula, R1, R2, and R3 are each a tert-butyl group or a hydrogen atom, and have at least one tert-butyl group; they may bond each other to thereby form a saturated hydrocarbon ring, when having two tert-butyl groups; A1, A2 are each an unsaturated hydrocarbon ring, at least one is a single ring, and at least one is a heterocyclic ring).

Iridium(iii) phosphors with bis(diphenylphorothioyl)amide ligand for efficient green and sky-blue OLEDs with EQE of nearly 28%

Xia, Jing-Cheng,Liang, Xiao,Yan, Zhi-Ping,Wu, Zheng-Guang,Zhao, Yue,Zheng, You-Xuan,Zhang, Wen-Wei

, p. 9010 - 9016 (2018/09/09)

In this study, a new ligand, bis(diphenylphorothioyl)amide (Stpip), containing phosphorus-sulfur (PS) bonds was synthesized as an ancillary ligand. Four iridium(iii) complexes (Ir(ppy)2(Stpip), Ir(tfppy)2(Stpip), Ir(ttppy)2/sub

Highly efficient and selective phosphorylation of amino acid derivatives and polyols catalysed by 2-aryl-4-(dimethylamino)pyridine-N-oxides-towards kinase-like reactivity

Murray, James I.,Woscholski, Rudiger,Spivey, Alan C.

supporting information, p. 13608 - 13611 (2015/01/09)

The chemoselective phosphorylation of hydroxyl containing amino acid derivatives and polyols by phosphoryl chlorides catalyzed by 2-aryl-4-(dimethylamino)pyridine-N-oxides is described.

Silyl-protected dioxaborinanes: Application in the Suzuki cross-coupling reaction

Goggins, Sean,Rosevere, Eleanor,Bellini, Clement,Allen, Joseph C.,Marsh, Barrie J.,Mahon, Mary F.,Frost, Christopher G.

, p. 47 - 52 (2014/01/06)

The synthesis of a range of novel silyl-protected dioxaborinanes as a column- and bench-stable boron reagent were found to be advantageous to achieving good yields in palladium-catalysed cross-coupling reactions under standard conditions. This journal is The Royal Society of Chemistry.

Syntheses, photoluminescence, and electroluminescence of a series of iridium complexes with trifluoromethyl-substituted 2-phenylpyridine as the main ligands and tetraphenylimidodiphosphinate as the ancillary ligand

Xu, Qiu-Lei,Wang, Cheng-Cheng,Li, Tian-Yi,Teng, Ming-Yu,Zhang, Song,Jing, Yi-Ming,Yang, Xu,Li, Wei-Nan,Lin, Chen,Zheng, You-Xuan,Zuo, Jing-Lin,You, Xiao-Zeng

, p. 4916 - 4925 (2013/06/05)

Five bis-cyclometalated iridium complexes with tifluoromethyl-substituted 2-phenylpyridine (ppy) at different positions of its phenyl group as the main ligands and tetraphenylimidodiphosphinate (tpip) as the ancillary ligand, 2-6 (1 is a trifluoromethyl-f

Blue phosphorescence of trifluoromethyl- and trifluoromethoxy-substituted cationic iridium(III) isocyanide complexes

Shavaleev, Nail M.,Monti, Filippo,Scopelliti, Rosario,Armaroli, Nicola,Graetzel, Michael,Nazeeruddin, Mohammad K.

, p. 6288 - 6296 (2012/10/29)

We report the first comprehensive comparative synthetic, structural, electrochemical, and spectroscopic study of an extended series of fluorocarbon-modified iridium(III) complexes. We prepared seven new cationic Ir(III) complexes with tert-butyl isocyanid

A general and efficient method for the Suzuki-Miyaura coupling of 2-pyridyl nucleophiles

Billingsley, Kelvin L.,Buchwald, Stephen L.

supporting information; experimental part, p. 4695 - 4698 (2009/02/06)

(Chemical Equation Presented) One of the most general systems for the cross-coupling of aryl and heteroaryl bromides and chlorides with 2-pyridyl-derived nucleophiles has been developed, for which catalysts comprising [Pd2(dba)3] and either diaryl (1) or dialkyl phosphine oxide (2) supporting ligands were found to be ideal (see scheme).

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