Month: November 2022

On December 11, 2014, Van Gool, Michiel Luc Maria; Alonso-De Diego, Sergio-Alvar; Cid-Nunez, Jose Maria; Delgado-Gonzalez, Oscar; Decorte, Annelies Marie Antonius; Macdonald, Gregor James; Megens, Antonius Adrianus Hendrikus Petrus; Trabanco-Suarez, Andres Avelino; Garcia-Molina, Aranzazu; Andres-Gil, Jose Ignacio published a patent.Category: pyridine-derivatives The title of the patent was Preparation of 6,7-dihydropyrazolo[1,5-a]pyrazin-4(5h)-one compounds and their use as negative allosteric modulators of mGluR2 receptors. And the patent contained the following:

Title compounds I [R1 = substituted Ph or 2-pyridinyl; R2 = substituted pyridinyl; R3 = H or alkyl; R4 = H, alkyl, mono- or polyhalo-alkyl, alkyl-O-alkyl or alkyl-OH], or a N-oxide, or a pharmaceutically acceptable salt or a solvate, are prepared as neg. allosteric modulators (NAMs) of the metabotropic glutamate receptor subtype 2 (mGluR2). Thus, e.g., II was prepared by reaction of (7S)-methyl-3-(2-methylpyridin-4-yl)-6,7-dihydro-5H-pyrazolo[1,5-a]pyrazin-4-one with 4-bromobenzotrifluoride. Compound II showed pIC50 value of 8.05 against hmGluR2 in GTPγS binding assay. The invention is also directed to pharmaceutical compositions comprising such compounds, to processes for preparing such compounds and compositions, and to the use of such compounds and compositions for the prevention or treatment of disorders in which the mGluR2 subtype of metabotropic receptors is involved, especially CNS disorders. The experimental process involved the reaction of 4-Bromo-2-isopropylpyridine(cas: 908267-63-0).Category: pyridine-derivatives

The Article related to dihydropyrazolopyrazine preparation neg allosteric mglur2 receptors cns disorder, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.Category: pyridine-derivatives

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On March 20, 2014, Soll, Mark David; Le Hir de Fallois, Loic Patrick; Huber, Scot Kevin; Lee, Hyoung Ik; Wilkinson, Douglas Edward; Jacobs, Robert Toms published a patent.Formula: C6H3ClN2O3 The title of the patent was Preparation of arylazol-2-yl cyanoethylamino derivatives useful as pesticides. And the patent contained the following:

The invention relates to arylazol-2-yl-cyanoethylamino derivatives of formula I and their preparation, useful as pesticides, particularly for controlling endoparasitic or ectoparasitic pests on animals. Compounds of formula I, in which group P is N; Q is CR2 and N; V is CR8; W is CR9 and N; X is CR10 and N; Y is CR11 and N; R2, R8, R9, R10, and R11 are each independently H, amino, amido, CN, etc.; R3, R4, and R5 are each independently H, halo, alkyl, etc.; and CR4R5 taken together form cycloalkyl ring; n = 1 – 3; R6 and R7 are independently H, (alkoxy)alkyl, alkylcarbonyl, etc.; Z is direct bond, CO, CS, and S(O)p; p = 0 – 2; or salts thereof, are claimed. Example compound II was prepared by amidation of 2-amino-3-(5-chloro-2H-benzotriazol-2-yl)-2-methylpropionitrile with 4-trifluoromethoxybenzoyl chloride. Invention compounds were evaluated for their pesticidal activity. From the assay, it was determined that compound II exhibited >95% reduction in nematode infestation after 3 days. The experimental process involved the reaction of 5-Chloro-3-nitropicolinaldehyde(cas: 1086838-13-2).Formula: C6H3ClN2O3

The Article related to arylazole benzotriazole indazole pyrazolopyridine cyanoethylamine preparation pesticide, Heterocyclic Compounds (More Than One Hetero Atom): Other 6-Membered Rings, Three Or More Hetero Atoms and other aspects.Formula: C6H3ClN2O3

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On November 26, 2018, Kim, Jae Hyeon; Kim, Gi Han; Kim, Chung Hyo published a patent.Related Products of 52243-87-5 The title of the patent was Optical control device and transparent display device including the same with improved light transmittance. And the patent contained the following:

An optical control device and transparent display device including the same having improved light transmittance and quality is provided. The optical control device comprises a first and second substrate facing each other, a first and a second partition disposed between both the substrate, both the partition holds the gap between the two substrates, first electrode disposed on a side surface of the first partition facing the second partition, second electrode disposed on a side surface of the second partition facing the first partition, light control cell disposed between the first and the second electrode, and a light control cell including a light transmissive variable material that changes light transmittance according to a voltage applied to the first and second electrode. The experimental process involved the reaction of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide(cas: 52243-87-5).Related Products of 52243-87-5

The Article related to optical control transparent display device, Optical, Electron, and Mass Spectroscopy and Other Related Properties: Spectrometers and Optical Apparatus and other aspects.Related Products of 52243-87-5

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On June 15, 2011, Jung, Hyeon Cheol; Yoo, In Seon; Lee, Jeong Ae; Park, Seong Hui published a patent.Product Details of 39919-70-5 The title of the patent was Organic electroluminescent device having novel electron transport/injection materials comprising aromatic compound. And the patent contained the following:

The title organic electroluminescent device comprises stacked anode, hole injection layer, hole transport layer, host + dopant layer, electron transport layer, electron injection layer, and cathode. The compound shown in chem. formula I is used in the electron transport layer and the electron injection layer, wherein, R1, R2 and R3 are the same or not, and are substituted or unsubstituted aromatic groups, heterocyclic groups or aliphatic groups. The experimental process involved the reaction of 6-(tert-Butyl)pyridin-3-amine(cas: 39919-70-5).Product Details of 39919-70-5

The Article related to organic electroluminescent device electron injection transport aromatic, Optical, Electron, and Mass Spectroscopy and Other Related Properties: Spectrometers and Optical Apparatus and other aspects.Product Details of 39919-70-5

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On July 5, 2018, Groarke, Michelle; Shiomi, Takushi; Kawamura, Masahiro; Nagashima, Hideaki published a patent.Electric Literature of 75449-26-2 The title of the patent was Nitrogen-containing heterocyclic compounds for organic light emitting devices. And the patent contained the following:

A compound represented by a chem. formula I (A1, A2, A3 = (un)substituted C6-C30 ring aromatic hydrocarbon, (un)substituted C5-C30 heterocyclic group; Z1 = N, CR1; R1 = H, (un)substituted C1-C30 alkyl, (un)substituted C3-C30 cycloalkyl etc.; B1 = H, CN, (un)substituted C6-C30 ring aromatic hydrocarbon, etc.; L = single bond, (un)substituted alkylene having C1-C30; (un)substituted C3-C30 cycloalkylene; l = 1, 2 or 3), a material for an organic electroluminescence device comprising at least one compound of formula I; an organic electroluminescence device which comprises an organic thin film layer between a cathode and an anode, wherein the organic thin film layer comprises one or more layers and comprises a light emitting layer, and at least one layer of the organic thin film layer comprises at least one compound with formula I; an electronic equipment. The experimental process involved the reaction of [2,2′-Bipyridine]-3,3′-diamine(cas: 75449-26-2).Electric Literature of 75449-26-2

The Article related to nitrogen heterocyclic organic light emitting device electroluminescent material, Optical, Electron, and Mass Spectroscopy and Other Related Properties: Spectrometers and Optical Apparatus and other aspects.Electric Literature of 75449-26-2

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Chesnokova, Alexandra N.; Lebedeva, Oksana V.; Pozhidaev, Yury N.; Ivanov, Nikolay A.; Rzhechitskii, Alexander E. published an article in 2014, the title of the article was Synthesis and properties of composite membranes for polymer electrolyte membrane fuel cells.Application of 636-73-7 And the article contains the following content:

The paper is devoted to the sol-gel synthesis of proton conductive organic-silicon composite membranes based on tetra-Et orthosilicate (TEOS) and copolymers of 2-methyl-5-vinylpyridine and vinyl chloride (MVP-VC), 2-methyl-5-vinylpyridine and vinyl acetate (MVP-VA), copolymers of ethylene glycol vinyl glycidyl ether and styrene (KS-1 and KS-2), and nitrogen-containing heteroaromatic derivatives of sulfonic acids: 2-phenyl-5-benzimidazolsulfonic acid (PBISA) and pyridine-3-sulfonic acid (PSA). Properties of synthesized membranes, such as proton conductivity, activation energy, ion exchange capacity, dimensional stability have been investigated. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Application of 636-73-7

The Article related to polymer electrolyte composite membrane fuel cell property synthesis, Electrochemical, Radiational, and Thermal Energy Technology: Energy-Conversion Devices and Their Components and other aspects.Application of 636-73-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On December 15, 2018, Han, Fei; Tu, Zeyi; Wan, Zhongquan; Luo, Junsheng; Xia, Jianxing; Hao, Guimin; Yi, Yuanping; Wang, Ruilin; Jia, Chunyang published an article.Reference of Pyridine-3-sulfonic acid The title of the article was Effect of functional group position change of pyridinesulfonic acid as interface-modified layer on perovskite solar cell. And the article contained the following:

There are fewer researches on the effect of functional group position change on device performance for highly efficient perovskite solar cell. In this work, we take pyridinesulfonic acid as an example, and study the effect of the isomeride: 2- and 3-pyridinesulfonic acid self-assembled monolayer on device performance for highly efficient perovskite solar cell. The efficiency of control device is 14.65% (Hysteresis Index = 0.31) under illumination of a simulated sunlight (AM 1.5G, 100 mW cm-2). Through use of the 3-pyridinesulfonic acid self-assembled monolayer, the device exhibits striking improvements to reach the efficiency of 16.88% (Hysteresis Index = 0.02), which constitutes an enhancement compared to those of 2-pyridinesulfonic acid self-assembled monolayer modified device (16.54%, Hysteresis Index = 0.02). The enhanced photovoltaic performances can be attributed to the larger perovskite grain sizes, and easier passivation of electron transporting layer/perovskite interface, which promote the charge separation, transport and collection. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Reference of Pyridine-3-sulfonic acid

The Article related to perovskite solar cell self assembled monolayer isomeride passivation, Electrochemical, Radiational, and Thermal Energy Technology: Energy-Conversion Devices and Their Components and other aspects.Reference of Pyridine-3-sulfonic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On January 6, 2020, Liu, Shan-Shan; Han, Zhen; Yang, Jin-Sen; Huang, Sheng-Zheng; Dong, Xi-Yan; Zang, Shuang-Quan published an article.Electric Literature of 636-73-7 The title of the article was Sulfonic Groups Lined along Channels of Metal-Organic Frameworks (MOFs) for Super-Proton Conductor. And the article contained the following:

Designing high-performance proton-conducting metal-organic frameworks simultaneously having highly hydrothermal stability and a high-d. proton carrier remains a great challenge. Fe-MIL-88B is a classic metal-organic framework (MOF) with a large-size one-dimensional (1D) channel lined with a high-d. uncoordinated metal atom for postfunctionalization; however this MOF cannot act as a proton conductor due to the weak hydrothermal stability. Here, we prepared an ultrastable isostructure Cr-MIL-88B, which is subsequently functionalized by anchoring 3-pyridinesulfonic acid and 2-(4-pyridyl) ethanesulfonic acid on the naked Cr atoms exposed on the surface of the host-framework, producing two new MOFs, i.e. Cr-MIL-88B-pyridine sulfonic acid (abbreviated as Cr-MIL-88B-PSA) and Cr-MIL-88B-pyridine ethanesulfonic acid (abbreviated as Cr-MIL-88B-PESA). Thus, Cr atoms on the host framework were modified by functional sulfonic groups, which stick out toward the center of the channel forming ordered high-d. sulfonic groups as proton donors along the open channel and achieving the highest proton conductivity of 4.50 × 10-2 S cm-1 for Cr-MIL-88B-PESA and 1.58 × 10-1 S cm-1 for Cr-MIL-88B-PSA, surpassing that of the Nafion membrane. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Electric Literature of 636-73-7

The Article related to metal organic framework proton conductor porous sulfonic group chromium, Electrochemical, Radiational, and Thermal Energy Technology: Energy-Conversion Devices and Their Components and other aspects.Electric Literature of 636-73-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On February 4, 2005, Yamada, Masanori; Honma, Itaru published an article.Formula: C5H5NO3S The title of the article was Proton conductivity of zwitterionic-type molecular solids under intermediate temperature and anhydrous conditions. And the article contained the following:

Anhydrous proton conducting material for polymer electrolyte membrane fuel cell (PEFC) was prepared by the mixing of zwitterionic-type mol. solid 3-pyridinesulfonic acid (PS) and organic acid methylenediphosphonic acid (MP). As a result, PS mol., which has a sulfonic acid and a pyridine group in its structure, showed the proton conductivity of 4 × 10-5 S cm-1 at 160°C under anhydrous condition. Surprisingly, by the mixing of MP to PS material, the PS-MP composite material exhibited a conductivity of 2 × 10-3 S cm-1. Also, the conductivity of PS-MP composite material did not decrease under the heating at 160° for 50 h. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Formula: C5H5NO3S

The Article related to proton conductivity sulfonic phosphonic zwitterionic solid electrolyte fuel cell, Electrochemical, Radiational, and Thermal Energy Technology: Energy-Conversion Devices and Their Components and other aspects.Formula: C5H5NO3S

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Dou, Chuandong; Long, Xiaojing; Ding, Zicheng; Xie, Zhiyuan; Liu, Jun; Wang, Lixiang published an article in 2016, the title of the article was An Electron-Deficient Building Block Based on the B<-N Unit: An Electron Acceptor for All-Polymer Solar Cells.Name: [2,2′-Bipyridine]-3,3′-diamine And the article contains the following content:

A double B<-N bridged bipyridyl (BNBP) is a novel electron-deficient building block for polymer electron acceptors in all-polymer solar cells. The B<-N bridging units endow BNBP with fixed planar configuration and low-lying LUMO/HOMO energy levels. As a result, the polymer based on BNBP units (P-BNBP-T) exhibits high electron mobility, low-lying LUMO/HOMO energy levels, and strong absorbance in the visible region, which is desirable for polymer electron acceptors. Preliminary all-polymer solar cell (all-PSC) devices with P-BNBP-T as the electron acceptor and PTB7 as the electron donor exhibit a power conversion efficiency (PCE) of 3.38 %, which is among the highest values of all-PSCs with PTB7 as the electron donor. The experimental process involved the reaction of [2,2'-Bipyridine]-3,3'-diamine(cas: 75449-26-2).Name: [2,2′-Bipyridine]-3,3′-diamine

The Article related to polymer solar cell electron acceptor boron nitrogen, b-n coordination, boron, electron acceptor, polymers, solar cells, Electrochemical, Radiational, and Thermal Energy Technology: Energy-Conversion Devices and Their Components and other aspects.Name: [2,2′-Bipyridine]-3,3′-diamine

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem