Day: November 2, 2022

Kato, Chuzo; Kuroda, Kazuyuki; Sugawara, Yoshiyuki; Miyata, Hirokatsu published an article in 1987, the title of the article was Synthesis of montmorillonite-viologen intercalation compounds and photochromism.HPLC of Formula: 52243-87-5 And the article contains the following content:

Photochromic behavior of viologen I (R = Pr, n-heptyl, benzyl, phenethyl) intercalated into the layers of montmorillonite with poly(vinylpyrrolidone) (PVP) and poly(vinyl alc.) (PVA) was studied. When irradiated with a Hg lamp, the intercalation compounds turned blue to give radical cations, whereupon PVP and PVA served as electron donors for reduction of I. The radical cations generated in montmorillonite were more stable than those in the PVP matrix. The experimental process involved the reaction of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide(cas: 52243-87-5).HPLC of Formula: 52243-87-5

The Article related to photoreduction viologen montmorillonite polymer matrix, intercalation compound viologen montmorillonite photochromism, Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes: Radiation Chemistry and Photochemistry and other aspects.HPLC of Formula: 52243-87-5

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On August 31, 1993, Kamogawa, Hiroyoshi; Nanasawa, Masato published an article.Related Products of 52243-87-5 The title of the article was Effect of temperature on the color developed by near ultraviolet light for 4,4′-bipyridinium salts (viologens) embedded in poly(1-vinyl-2-pyrrolidone) matrix. And the article contained the following:

Thermal stability of the colors developed by UV light for 4,4′-bipyridinium salts (viologens) embedded in the glass-sandwiched poly(1-vinyl-2-pyrrolidone) is dominated by the kind of counter anion. Temperature increase resulted in either no or slight changes of the colors developed for the major viologens, whereas it resulted in bleaching for some viologen sulfonates. 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 bipyridinium salt photochromism vinylpyrrolidone polymer, thermal stability color photoproduct viologen polyvinylpyrrolidone, Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes: Radiation Chemistry and Photochemistry and other aspects.Related Products of 52243-87-5

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Tahara, Hironobu; Yonemura, Hiroaki; Harada, Satoko; Nakashima, Akio; Yamada, Sunao published an article in 2012, the title of the article was Photoinduced electron-transfer reactions and magnetic field effects on the decay rates of a photogenerated biradical from zinc porphyrin-viologen linked compounds in an ionic liquid.COA of Formula: C16H22Br2N2 And the article contains the following content:

Fluorescence and transient absorption spectra of zinc-porphyrin (ZnP)-viologen linked compounds with various methylene groups indicate that intramol. electron-transfer from the singlet or triplet excited state of ZnP to viologen occurred and a biradical was generated in the ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate) at various temperatures (283-343 K). The decay rate constants of the biradical decreased in 0-0.2∼0.5 T and became constant in 0.2∼0.5-1 T. Unique effects of temperature and methylene chain length on electron-transfer and magnetic field effects were observed and are probably due to the properties of the ionic liquid as compared with benzonitrile. The experimental process involved the reaction of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide(cas: 52243-87-5).COA of Formula: C16H22Br2N2

The Article related to photoinduced intramol electron transfer zinc porphyrin viologen dyad kinetics, magnetic field zinc porphyrin viologen dyad photochem ionic liquid, Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes: Radiation Chemistry and Photochemistry and other aspects.COA of Formula: C16H22Br2N2

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On October 1, 2013, Zhao, Hong-Wu; Yue, Yuan-Yuan; Li, Hai-Long; Song, Xiu-Qing; Sheng, Zhi-Hui; Yang, Zhao; Meng, Wei; Yang, Ze published an article.Synthetic Route of 75449-26-2 The title of the article was Novel axially unfixed biaryl-based water-compatible organocatalysts: design, synthesis and their asymmetric catalysis in direct aldol reactions in water. And the article contained the following:

A family of novel axially unfixed biaryl-based, water-compatible bifunctional organocatalysts I [R = 4-MeC6H4, 4-MeC6H4, 1-naphthyl; X = CH, N] were designed and synthesized for asym. catalytic direct aldol reactions in water. These organocatalysts are comprised of prolinamide, aromatic sulfonamide and biaryl motifs. Under the optimal reaction conditions, one organocatalyst in particular delivered excellent stereocontrol (up to 99% ee and 99:1 dr) in direct aldol reactions of cyclohexanone with a variety of aromatic aldehydes in water. The experimental process involved the reaction of [2,2′-Bipyridine]-3,3′-diamine(cas: 75449-26-2).Synthetic Route of 75449-26-2

The Article related to asym aldol addition biaryl catalyst preparation, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Amides, Amidines, Imidic Esters, Hydrazides, and Hydrazonic Esters and other aspects.Synthetic Route of 75449-26-2

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On June 9, 2016, Chen, Austin; Bravo, Yalda; Stock, Nicholas; Pedram, Bijan; Jacintho, Jason; Clark, Ryan C.; Truong, Yen published a patent.Safety of Methyl 2-amino-5-chloroisonicotinate The title of the patent was Thio-substituted benzamides as antiviral agents for the treatment of treatment HBV infection and their preparation. And the patent contained the following:

The invention includes a method of inhibiting, suppressing or preventing HBV infection in an individual in need thereof, comprising administering to the individual a therapeutically effective amount of at least one compound of formula I. Compounds of formula I wherein each R1, R2, and R3 are halo; R4 is (un)substituted C3-7 cycloalkyl (un)substituted C1-6 alkyl-C3-7 cycloalkyl; and pharmaceutically acceptable salts thereof, are claimed. Example compound II was prepared by thioetherification of N-(3,4,5-trifluoromethylphenyl)-4-fluoro-3-iodobenzamide with 1-(mercaptomethyl)cyclopropylacetic acid. The invention compounds were evaluated for their antiviral activity (some data given). The experimental process involved the reaction of Methyl 2-amino-5-chloroisonicotinate(cas: 1227002-03-0).Safety of Methyl 2-amino-5-chloroisonicotinate

The Article related to thiobenzamide preparation antiviral treatment hbv infection, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Amides, Amidines, Imidic Esters, Hydrazides, and Hydrazonic Esters and other aspects.Safety of Methyl 2-amino-5-chloroisonicotinate

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On January 17, 2019, Ahmad, Nadia; Anderson, Corey; Arumugam, Vijayalaksmi; Asgian, Iuliana Luci; Camp, Joanne Louise; Fanning, Lev Tyler Dewey; Hadida Ruah, Sara Sabina; Hurley, Dennis; Schmidt, Yvonne; Shaw, David; Sheth, Urvi Jagdishbhai; Thomson, Stephen Andrew published a patent.Recommanded Product: Methyl 5-amino-4-methylpicolinate The title of the patent was Preparation of (hetero)aromatic carboxamides as modulators of sodium channels for the treatment of diseases. And the patent contained the following:

The invention relates to preparation of aryl heteroaryl carboxamides and pharmaceutically acceptable salts thereof, useful as inhibitors of sodium channels. The example compound I was prepared by multistep synthesis (procedure given). Also provided are pharmaceutical compositions comprising the compounds or pharmaceutically acceptable salts and methods of using the compounds, pharmaceutically acceptable salts, and pharmaceutical compositions in the treatment of various disorders, including pain. The experimental process involved the reaction of Methyl 5-amino-4-methylpicolinate(cas: 868551-99-9).Recommanded Product: Methyl 5-amino-4-methylpicolinate

The Article related to aryl heteroaryl carboxamide preparation sodium channel modulator disease treatment, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Amides, Amidines, Imidic Esters, Hydrazides, and Hydrazonic Esters and other aspects.Recommanded Product: Methyl 5-amino-4-methylpicolinate

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On March 12, 1998, Daines, Robert A. published a patent.Name: N,3-Dimethylpyridin-2-amine The title of the patent was Preparation of 3,4-dinitrobenzamides as calcitonin gene related peptide receptor ligands.. And the patent contained the following:

Title compounds [I; R1 = H, Me, alkyl, phenylalkyl, heterocyclylalkyl, aminoalkyl, carboxyalkyl, alkoxycarbonylalkyl, etc.; R2 = (substituted) aryl, heteroaryl, arylalkyl, heteroarylalkyl; R1R2N = (benzo-fused) 5-6 membered heterocyclyl], were prepared Thus, N-methylaniline in CH2Cl2 was treated with Et3N and then with 3,4-dinitrobenzoyl chloride and the mixture was shaken overnight to give N-methyl-N-phenyl-3,4-dinitrobenzamide. I antagonized CGRP receptors with IC50 = 0.001-100 μM. The experimental process involved the reaction of N,3-Dimethylpyridin-2-amine(cas: 156267-13-9).Name: N,3-Dimethylpyridin-2-amine

The Article related to nitrobenzamide preparation cgrp related disease treatment, calcitonin gene related peptide antagonist dinitrobenzamide, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Amides, Amidines, Imidic Esters, Hydrazides, and Hydrazonic Esters and other aspects.Name: N,3-Dimethylpyridin-2-amine

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On July 31, 2008, Diehl, Donald R.; Eiff, Shari L.; Landry-Coltrain, Christine J.; Russo, Gary M. published a patent.Related Products of 28489-43-2 The title of the patent was Stabilized dyes for thermal dye transfer materials. And the patent contained the following:

The present invention relates to a cyan dye donor element for thermal transfer imaging comprising a support having thereon a dye layer comprising a mixture of at least two cyan dyes dispersed in a polymeric binder, wherein at least one of the at least two cyan dyes is a light stabilizing dye represented by Formula I and a thermal image recording method utilizing the same cyan dye donor element, wherein R1 and R2 are substituted or unsubstituted alkyl, cycloalkyl, or aryl, or combine to form a carbocyclic or heterocyclic ring; R3 is hydrogen, halogen, alkoxy, substituted or unsubstituted alkyl, NHCOR1, NHSO2R1, or combine s with either R1 or R2 to form a carbocyclic or heterocyclic ring; X is halogen; Y is alkyl; Z is carbon or nitrogen; J is NHCOR4; R4 is R5Phenyl(OR7)m; R5 is -(CHR6)n- or -(CH2)pO-; R6 is hydrogen, substituted or unsubstituted alkyl; R7 is substituted or unsubstituted alkyl, carbocycle or heterocycle; m is 2-5; n is 0-6; p is 2-5; the formula weight of R4 does not exceed 230. The present invention also relates to a cyan ink-jet dye comprising a light stabilizing cyan dye represented by Formula I. The experimental process involved the reaction of N,N-DIethyl-6-methyl-5-nitro-2-pyridinamine(cas: 28489-43-2).Related Products of 28489-43-2

The Article related to stabilized dye thermal transfer sheet, Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes: Impact and Nonimpact Printing, Platemaking and other aspects.Related Products of 28489-43-2

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On March 14, 1995, Komamura, Tawara; Kato, Katsunori; Tanaka, Tatsuo published a patent.Application of 28489-43-2 The title of the patent was Aminopicoline-derived cyan dye and thermal-transfer printing material. And the patent contained the following:

The dye comprise cyano structure I [X = NR3R4, OH; R1 = H, halo, monovalent substitute; R2 = (substituted) aliphatic or aromatic group; R3, R4 = (substituted) alkyl, alkenyl aryl, aralkyl, cycloalkyl; substitutes of R3, R4 may form ring with R1; Y1 and/or Y2 = N, other is C]. The thermal-transfer printing material includes a colorant layer containing I associated with a binder. The dye, e.g., I (X = NEt2, Y1 = C, Y2 = N; R1 = 2-Me, R2 = CMe3), is prepared The experimental process involved the reaction of N,N-DIethyl-6-methyl-5-nitro-2-pyridinamine(cas: 28489-43-2).Application of 28489-43-2

The Article related to cyano dye thermal transfer printing, aminopicoline derived cyano dye printing, Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes: Impact and Nonimpact Printing, Platemaking and other aspects.Application of 28489-43-2

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On November 30, 1998, Yang, Fang-zu; Xu, Shu-kai; Huang, Ling; Zhang, Xue-ying; Zhou, Shao-min published an article.SDS of cas: 636-73-7 The title of the article was A study on the effect of bath composition on the internal stress of a palladium electrodeposit. And the article contained the following:

The effects of bath composition on the internal stress of palladium electrodeposits are studied in neutral media with Pd(NH3)2Cl2, K3C6H5O7, (NH4)2C2O4 and the additives of the mixture of the synthesized products of nicotinic acid and nicotiamide (NANA), pyridine-3-sulfonic acid (PSA), α-furan formic acid (FF) and cetyl tri-Me ammonium bromide (CTMAB). The internal stress of electrodeposits is quite changeable at the beginning of electrodeposition, later becoming stable gradually. Deposits obtained from pulse electrodeposition have lower stress than that from d.c. After electrodeposition, all the deposits keep the tensile stress which increases with time. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).SDS of cas: 636-73-7

The Article related to palladium electroplating residual stress, Nonferrous Metals and Alloys: Surface Treatment, Metallic and Nonmetallic Coating, Sealing, Cleaning, Polishing, Etching, and Pickling and other aspects.SDS of cas: 636-73-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem