Tag: 200-300

Electroreductive Nickel-Catalyzed Thiolation: Efficient Cross-Electrophile Coupling For C-S Formation was written by Ang, Nate W. J.;Ackermann, Lutz. And the article was included in Chemistry – A European Journal in 2021.Reference of 14425-64-0 This article mentions the following:

An efficient and mild electrochem. thiolation by cross-electrophile coupling of alkyl bromides with functionalized bench-stable thiosulfonates to access alkyl sulfides RSR¹ [R = (CH₂)₅Cl, Cy, (CH₂)₂Ph, etc.; R¹ = Cy, Ph, 2-thienyl, etc.] with excellent efficacy and broad functional group tolerance. Cyclic voltammetry and potentiostatic anal. were performed to elucidate mechanistic insights into this electrocatalytic thiolation reaction. In the experiment, the researchers used many compounds, for example, 1-(2-Bromoethyl)-4-methoxybenzene (cas: 14425-64-0Reference of 14425-64-0).

1-(2-Bromoethyl)-4-methoxybenzene (cas: 14425-64-0) belongs to organobromine compounds. Organo bromine compounds are versatile compounds and are widely used in diverse fields. Organo bromine derivatives are used in the dye sector, as an indicator in analytical chemistry (Bromothymol blue is a popular indicator). Bromine-containing agents predominate because not only are they more efficient than similar chlorine-containing species, but also the high atomic weight of bromine ensures that it is present in a high mass fraction within most organobromine compounds.Reference of 14425-64-0

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Structure-activity relationships of N²-substituted guanines as inhibitors of HSV1 and HSV2 thymidine kinases was written by Hildebrand, Catherine;Sandoli, Daniele;Focher, Federico;Gambino, Joseph;Ciarrocchi, Giovanni;Spadari, Silvio;Wright, George. And the article was included in Journal of Medicinal Chemistry in 1990.Recommanded Product: 3,4-Dibromoaniline This article mentions the following:

Guanines I [R = Ph, substituted Ph, Bu, hexyl, (CH₂)₅OH, CH₂Ph, CH₂C₆H₄Cl] were prepared and tested for inhibition of the thymidine kinases encoded by Herpes simplex viruses type 1 and type 2. Compounds with hydrophobic, electron-attracting groups in the meta position of the Ph ring such as I (R = 3-CF₃C₆H₄) were the most potent inhibitors of both enzymes. Many derivatives were significantly more potent against the type 2 thymidine kinase than against the type 1 and can effectively discriminate between the two enzymes. I [R = alkyl, (un)substituted CH₂Ph] were moderately potent inhibitors, and the type 2 enzyme was again more sensitive than the type 1 enzyme. None of the compounds inhibited the thymidine kinase isolated from the host HeLa cell line, suggesting that members of this class of compounds may be useful nonsubstrate, antiviral compounds for latent herpesvirus infections. In the experiment, the researchers used many compounds, for example, 3,4-Dibromoaniline (cas: 615-55-4Recommanded Product: 3,4-Dibromoaniline).

3,4-Dibromoaniline (cas: 615-55-4) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. alpha-Bromoesters are employed in the Reformatsky reaction for the synthesis of beta-hydroxyesters. The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. For many applications, organobromides represent a compromise of reactivity and cost.Recommanded Product: 3,4-Dibromoaniline

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Synthesis of quinoline-based NNN-pincer nickel(II) Complexes: a robust and improved catalyst system for C-H bond alkylation of azoles with alkyl halides was written by Patel, Ulhas N.;Pandey, Dilip K.;Gonnade, Rajesh G.;Punji, Benudhar. And the article was included in Organometallics in 2016.HPLC of Formula: 57293-19-3 This article mentions the following:

The quinoline-based pincer nickel(II) complexes I (2a,b, X = Cl, R = Me, Et; 3a,b, X = Br, R = Me, Et; 4a, X = OAc, R = Me) were prepared by the reaction of the ligand precursors N-[(2-dialkylamino)phenyl]-8-quinolinamines with (DME)NiCl₂ (THF)₂NiBr₂ or Ni(OAc)₂ in the presence of Et₃N. All of these complexes were characterized by ¹H and ¹³C NMR spectroscopy as well as by elemental anal. Further, the mol. structures of 2a and 3a,b were elucidated by x-ray crystallog. Complex 2a is found to be an efficient catalyst for the direct C-H bond alkylation of substituted benzothiazoles and oxazoles in 2-position with various unactivated alkyl halides containing 灏?hydrogens under mild reaction conditions. The catalyst 2a is very robust and was recycled and reused five times for the alkylation reaction without a decrease in its catalytic activity. Preliminary studies reveal that the catalyst 2a acts as an active catalyst and the alkylation reaction appears to operate via a radical pathway. In the experiment, the researchers used many compounds, for example, 1-(3-Bromopropyl)-4-methoxybenzene (cas: 57293-19-3HPLC of Formula: 57293-19-3).

1-(3-Bromopropyl)-4-methoxybenzene (cas: 57293-19-3) belongs to organobromine compounds. Most organobromine compounds, like most organohalide compounds, are relatively nonpolar. When the molecular ion is detected, the bromine and chlorine isotope patterns are very distinct, but caution is to be exercised for certain mixed chlorinated/brominated compounds, which can look similar to homohalogen patterns.HPLC of Formula: 57293-19-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Protein Structure-Based Design, Synthesis, and Biological Evaluation of 5-Thia-2,6-diamino-4(3H)-oxopyrimidines: Potent Inhibitors of Glycinamide Ribonucleotide Transformylase with Potent Cell Growth Inhibition was written by Varney, Michael D.;Palmer, Cindy L.;Romines, William H. III;Boritzki, Theodore;Margosiak, Stephen A.;Almassy, Robert;Janson, Cheryl A.;Bartlett, Charlotte;Howland, Eleanor J.;Ferre, Rosanne. And the article was included in Journal of Medicinal Chemistry in 1997.Product Details of 38239-45-1 This article mentions the following:

The design, synthesis, biochem., and biol. evaluation of a novel series of 5-thia-2,6-diamino-4(3H)-oxopyrimidine inhibitors of glycinamide ribonucleotide transformylase (GART) are described. The compounds were designed using the X-ray crystal structure of human GART. The monocyclic 5-thiapyrimidinones were synthesized by coupling an alkyl thiol with 5-bromo-2,6-diamino-4(3H)-pyrimidinone. The bicyclic compounds were prepared in both racemic and diastereomerically pure forms using two distinct synthetic routes. The compounds were found to have human GART K_is ranging from 30 娓璏 to 2 nM. The compounds inhibited the growth of both L1210 and CCRF-CEM cells in culture with potencies down to the low nanomolar range and were found to be selective for the de novo purine biosynthesis pathway. The most potent inhibitors had 2,5-disubstituted thiophene rings attached to the glutamate moiety. Placement of a Me substituent at the 4-position of the thiophene ring resulted in inhibitors with significantly decreased mFBP (human folate-binding protein) affinity. In the experiment, the researchers used many compounds, for example, 5-Bromo-3-methylthiophene-2-carboxylic acid (cas: 38239-45-1Product Details of 38239-45-1).

5-Bromo-3-methylthiophene-2-carboxylic acid (cas: 38239-45-1) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. One prominent application of synthetic organobromine compounds is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine.Product Details of 38239-45-1

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Highly efficient synthesis of alkylboronate esters via Cu(II)-catalyzed borylation of unactivated alkyl bromides and chlorides in air was written by Bose, Shubhankar Kumar;Brand, Simon;Omoregie, Helen Oluwatola;Haehnel, Martin;Maier, Jonathan;Bringmann, Gerhard;Marder, Todd B.. And the article was included in ACS Catalysis in 2016.Synthetic Route of C10H13BrO This article mentions the following:

A copper(II)-catalyzed borylation of alkyl halides with bis(pinacolato)diboron (B₂pin₂) has been developed, which can be carried out in air, providing a wide range of primary, secondary, and some tertiary alkylboronates in high yields. A variety of functional groups are tolerated and the protocol is also applicable to unactivated alkyl chlorides (including 1,1- and 1,2-dichlorides). Preliminary mechanistic investigations show that this borylation reaction involves one-electron processes. In the experiment, the researchers used many compounds, for example, 1-(3-Bromopropyl)-4-methoxybenzene (cas: 57293-19-3Synthetic Route of C10H13BrO).

1-(3-Bromopropyl)-4-methoxybenzene (cas: 57293-19-3) belongs to organobromine compounds. Organo bromine compounds are versatile compounds and are widely used in diverse fields. Organo bromine derivatives are used in the dye sector, as an indicator in analytical chemistry (Bromothymol blue is a popular indicator). The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.Synthetic Route of C10H13BrO

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Aminobenzothiazoles. XI. Synthesis of 5,4′-disubstituted 1-anilinobenzothiazoles from nuclear substituted thiocarbenilides was written by Dyson, George M.;Hunter, Robert F.;Soyka, Charles. And the article was included in Journal of the Chemical Society in 1929.Safety of 3,4-Dibromoaniline This article mentions the following:

(P-BrC₆H₄NH)₂CS and Br in CHCl₃ yield a perbromide, which, on heating, gives a hydropentabromide(I), C₁₃H₈N₂Br₂S.HBr.Br₄, orange-red needles, m. 170鎺?(decomposition) and rapidly loses Br on exposure to moist air suspended in H₂SO₃ and treated with SO₂, there results 5,4′-dibromo-1-anilinobenzothiazole(II), m. 221鎺? Ac derivative, m. 205-6鎺? HBr salt, m. 250鎺?(decomposition); Br gives I. 1-Chloro-5-bromobenzothiazole, m. 89鎺? b₁₃ 157-9鎺? results by heating p-BrC₆H₄NCS and PCl₅ 30-40 hrs. at 170-80鎺?warming with p-BrC₆H₄NH₂ gives II. p-BrC₆H₄NHCSNHPh and Br in CHCl₃ give the hydrotribromide, m. 148鎺?(decomposition), which is reduced to 4′-bromo-1-anilinobenzothiazole (III), m. 214-5鎺? also obtained from 1-chlorobenzothiazole and p-BrC₆H₄NH₂. Bromination of III gives II. 1-Anilinobenzothiazole yields a hexabromide, m. 140鎺? which yields II on being dissolved in boiling absolute EtOH. Hugershoff’s dibromoanilinobenzothiazole (Ber. 36, 3121(1903)) appears to consist mainly of II, although the m. p. could not be raised above 200鎺? Bromination of II gives an unstable orange hexabromide, m. 254鎺? which gives with hot absolute EtOH a tetra-Br substitution derivative, m. 196-8鎺? (p-ClC₆H₄NH)₂CS and Br in CHCl₃ yield a hydrotribromide, orange, m. 165-7鎺?(decompm); reduction gives 5,4′-dichloro-1-aminobenzothiazole, m. 224鎺? Ac derivative, m. 186-7鎺? HBr salt. yellow, m. 217鎺? hexabromide, orange, m. 263鎺?(decomposition). p-ClC₆H₄NHCSNHPh yields a Br addition compound, orange, m. 130鎺?(decomposition); 4′-chloro-1-anilinobenzothiazole, m. 196鎺? this is also obtained from 1-chlorobenzothiazole and p-ClC₆H₄NH₂. (p-IC₆H₄NH)₂CS and Br in CHCl₃ yield a red bromide, m. 185鎺? and a yellow, m. 211鎺? both, on reduction, yield 5,4′-diiodo-1-anilinobenzothiazole, m. 193鎺?(decomposition); this also results by treating 1-anilinobenzothiazole in AcOH with ICl, warming the solution and diluting with H₂O. (p-FC₆H₄NH)₂CS gives a hydrotribromide, orange, m. 150-2鎺?(decomposition); 5,4′-difluoro-1-anilinobenzothiazole, m. 227-8鎺? 5,4′-Dinitro-1-anilinobenzothiazole, brilliant yellow, in. 280鎺? this also results on nitration of 1-anilinobenzothiazole. (p-NCC₆H₄NH)₂CS and Br give an addition product, golden, m. 159-60鎺?(decomposition): 5,4′-dicyano-1-anilinobenzothiazole, m. 222鎺? (p-EtO₂CC₆H₄NH)₂CS yields a hydropentabromide, orange, m. 110鎺?(decompn); reduction gives Et 1-anilinobenzothiazole-5,4′-dicarboxylate, m. 190-2鎺? hydrolysis gives the free acid, does not m. 290鎺? (p-MeOC₆H₄NH)₂CS yields a brick-red bromide, m. 137鎺?(decomposition), reduced to a dibromo-5,4′-dimethoxy-1-anilinobenzothiazole, m. 240鎺? PhNHCSNAcPh yields a hydrotribromide, orange, m. 167鎺?(decomposition); the same compound is obtained from 1-acetanilinobenzothiazole, HBr and Br (Hugershoff, Ber. 36, 3136(1903)); Br in CHCl₃ gives an orange hexa-Br addition compound, m. 163鎺?(decomposition). In the experiment, the researchers used many compounds, for example, 3,4-Dibromoaniline (cas: 615-55-4Safety of 3,4-Dibromoaniline).

3,4-Dibromoaniline (cas: 615-55-4) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact. Many of the alkyl bromine derivatives are excellent alkylating agents since bromides are good leaving groups. Tribromides, like tetrabutylammonium tribromide, are used as a solid source of bromine. N-bromosuccimide (NBS) is used for the selective bromination of allylic bonds.Safety of 3,4-Dibromoaniline

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Structure-Based Design, Synthesis, and Biological Evaluation of Imidazo[4,5-b]Pyridin-2-one-Based p38 MAP Kinase Inhibitors: Part 2 was written by Kaieda, Akira;Takahashi, Masashi;Fukuda, Hiromi;Okamoto, Rei;Morimoto, Shinji;Gotoh, Masayuki;Miyazaki, Takahiro;Hori, Yuri;Unno, Satoko;Kawamoto, Tomohiro;Tanaka, Toshimasa;Itono, Sachiko;Takagi, Terufumi;Sugimoto, Hiroshi;Okada, Kengo;Lane, Weston;Sang, Bi-Ching;Saikatendu, Kumar;Matsunaga, Shinichiro;Miwatashi, Seiji. And the article was included in ChemMedChem in 2019.Product Details of 29421-99-6 This article mentions the following:

We identified novel potent inhibitors of p38 mitogen-activated protein (MAP) kinase using a structure-based design strategy, beginning with lead compound, 3-(butan-2-yl)-6-(2,4-difluoroanilino)-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (1). To enhance the inhibitory activity of 1 against production of tumor necrosis factor-浼?(TNF-浼? in human whole blood (hWB) cell assays, we designed and synthesized hybrid compounds in which the imidazo[4,5-b]pyridin-2-one core was successfully linked with the p-methylbenzamide fragment. Among the compounds evaluated, 3-(3-tert-butyl-2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-6-yl)-4-methyl-N-(1-methyl-1H-pyrazol-3-yl)benzamide (25) exhibited potent p38 inhibition, superior suppression of TNF-浼?production in hWB cells, and also significant in vivo efficacy in a rat model of collagen-induced arthritis (CIA). In this paper, we report the discovery of potent, selective, and orally bioavailable imidazo[4,5-b]pyridin-2-one-based p38 MAP kinase inhibitors. In the experiment, the researchers used many compounds, for example, 4-Bromo-5-methylthiophene-2-carboxylic acid (cas: 29421-99-6Product Details of 29421-99-6).

4-Bromo-5-methylthiophene-2-carboxylic acid (cas: 29421-99-6) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. alpha-Bromoesters are employed in the Reformatsky reaction for the synthesis of beta-hydroxyesters. The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.Product Details of 29421-99-6

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

A simple and mild acylation of alcohols, phenols, amines, and thiols with a reusable heteropoly acid catalyst (H₆P₂W₁₈O₆₂璺?4 H₂O) was written by Romanelli, Gustavo P.;Bennardi, Daniel O.;Autino, Juan C.;Baronetti, Graciela T.;Thomas, Horacio J.. And the article was included in E-Journal of Chemistry in 2008.Application In Synthesis of 3-Bromophenyl acetate This article mentions the following:

The acylation of alcs., phenols, thiols, and amines with varied substitution using acid anhydrides is efficiently catalyzed by Wells-Dawson heteropoly acid (H₆P₂W₁₈O₆₂璺?4 H₂O). Reactions proceed with very good to excellent yield in air at room temperature, using toluene as solvent (40 examples). The bulk catalyst was easily reused without appreciable loss of its activity. In the experiment, the researchers used many compounds, for example, 3-Bromophenyl acetate (cas: 35065-86-2Application In Synthesis of 3-Bromophenyl acetate).

3-Bromophenyl acetate (cas: 35065-86-2) belongs to organobromine compounds. Most organobromine compounds, like most organohalide compounds, are relatively nonpolar. The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. For many applications, organobromides represent a compromise of reactivity and cost.Application In Synthesis of 3-Bromophenyl acetate

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Palladium-Catalyzed C-H Oxidation of Isoquinoline N-Oxides: Selective Alkylation with Dialkyl Sulfoxides and Halogenation with Dihalo sulfoxides was written by Yao, Bo;Song, Ren-Jie;Liu, Yan;Xie, Ye-Xiang;Li, Jin-Heng;Wang, Meng-Ke;Tang, Ri-Yuan;Zhang, Xing-Guo;Deng, Chen-Liang. And the article was included in Advanced Synthesis & Catalysis in 2012.Name: 2-Bromo-4-(trifluoromethyl)benzaldehyde This article mentions the following:

A novel palladium-catalyzed C-H oxidation of isoquinoline N-oxides has been developed for regioselectively synthesizing substituted isoquinolines, e.g., I (R¹ = F, Cl, MeO, CF₃; R² = Me, n-Bu) and II (R³ = H, CF₃). The method represents the first example of using dialkyl sulfoxides as the alkyl sources for the construction of 1-alkylated isoquinolines. Moreover, the regioselective halogenation of isoquinoline N-oxides is also successful using dihalo sulfoxides as the halide sources. In the experiment, the researchers used many compounds, for example, 2-Bromo-4-(trifluoromethyl)benzaldehyde (cas: 85118-24-7Name: 2-Bromo-4-(trifluoromethyl)benzaldehyde).

2-Bromo-4-(trifluoromethyl)benzaldehyde (cas: 85118-24-7) belongs to organobromine compounds. Most of the natural organobromine compounds are produced by marine organisms, and several brominated metabolites with antibacterial, antitumor, antiviral, and antifungal activity have been isolated from seaweed, sponges, corals, molluscs, and others. The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. For many applications, organobromides represent a compromise of reactivity and cost.Name: 2-Bromo-4-(trifluoromethyl)benzaldehyde

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Nucleophilicities of selected ions in water at 195 鎺矯 was written by Reed, Gregg A.;Dimmel, Donald R.;Malcolm, Earl W.. And the article was included in Journal of Organic Chemistry in 1993.Recommanded Product: 6515-58-8 This article mentions the following:

The reaction of a benzyl aryl ether with selected ions was studied to determine relative nucleophilicities at 195 鎺矯 in water. Nucleophilic displacement by the ions occurred at the benzyl carbon to liberate a phenolic group. The primary products of the displacement were independently synthesized and reacted in alkali to determine their stability. Hydrosulfide ion was 20 times more reactive than hydroxide ion with this substrate, while anthrahydroquinone ion was 17 times more reactive. In the experiment, the researchers used many compounds, for example, 3-(Bromomethyl)benzoic acid (cas: 6515-58-8Recommanded Product: 6515-58-8).

3-(Bromomethyl)benzoic acid (cas: 6515-58-8) belongs to organobromine compounds. Organo bromine compounds are versatile compounds and are widely used in diverse fields. Organo bromine derivatives are used in the dye sector, as an indicator in analytical chemistry (Bromothymol blue is a popular indicator). The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. For many applications, organobromides represent a compromise of reactivity and cost.Recommanded Product: 6515-58-8

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary