Month: December 2022

Synthesis of novel quinazolin-4(3H)-one derivatives containing the 7-oxo-1,2,4-triazolo[1,5-a]pyrimidine moiety as effective agricultural bactericides against the pathogen Xanthomonas oryzae pv. oryzae was written by Du, Huan;Fan, Zhijiang;Yang, Lan;Bao, Xiaoping. And the article was included in Molecular Diversity in 2018.Related Products of 620-19-9 This article mentions the following:

Abstract: A series of novel quinazolin-4-one derivatives (7a-7n) bearing the 7-oxo-1,2,4-triazolo[1,5-a]pyrimidine moiety were designed, synthesized and evaluated for their inhibition activities against phytopathogenic bacteria and fungi in vitro. All of the target compounds were fully characterized through ¹H NMR, ¹³C NMR, HRMS and IR spectra. Among these compounds, the structure of compound 7e was unambiguously confirmed via single-crystal X-ray diffraction anal. The turbidimetric assays indicated that compounds 7b, 7d, 7g, 7k and 7n exhibited much more potent inhibition activities against the pathogen Xanthomonas oryzae pv. oryzae (Xoo), relative to control Bismerthiazol. Moreover, antibacterial activities of compounds 7j, 7k and 7n against the pathogen Xanthomonas axonopodis pv. citri (Xac) were comparable to that of control Bismerthiazol. As for the pathogen Ralstonia solanacearum (Rs), only compounds 7g and 7i demonstrated inhibition activities similar to control Thiadiazole-copper. Moreover, this class of compounds did not display inhibition activity against three fungi tested. The above findings indicated that quinazolin-4-one derivatives containing the 7-oxo-1,2,4-triazolo[1,5-a]pyrimidine moiety have a potential as promising candidates for the development of new and more efficient agricultural bactericides. Graphical Abstract: [Figure not available: see fulltext.]. In the experiment, the researchers used many compounds, for example, 1-(Chloromethyl)-3-methylbenzene (cas: 620-19-9Related Products of 620-19-9).

1-(Chloromethyl)-3-methylbenzene (cas: 620-19-9) belongs to organic chlorides. Chlorination modifies the physical properties of hydrocarbons in several ways. These compounds are typically denser than water due to the higher atomic weight of chlorine versus hydrogen. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Related Products of 620-19-9

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

KMnO₄-mediated oxidative C-N bond cleavage of tertiary amines: Synthesis of amides and sulfonamides was written by Zhang, Zhang;Liu, Yong-Hong;Zhang, Xi;Wang, Xi-Cun. And the article was included in Tetrahedron in 2019.COA of Formula: C8H10ClN This article mentions the following:

KMnO₄-mediated oxidative C-N bond cleavage of tertiary amines producing secondary amine was introduced, which was trapped by electrophiles (acyl chloride and sulfonyl chloride) to form amides and sulfonamides. The reaction took placeat mild condition, tolerating a wide range of function groups and affording products in moderate to excellent yields. In the experiment, the researchers used many compounds, for example, 2-Chloro-N,N-dimethylaniline (cas: 698-01-1COA of Formula: C8H10ClN).

2-Chloro-N,N-dimethylaniline (cas: 698-01-1) belongs to organic chlorides. Organochlorines are organic compounds having multiple chlorine atoms. They were the first synthetic pesticides that were used in agriculture. They are resistant to most microbial and chemical degradations. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.COA of Formula: C8H10ClN

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

DPD-Inspired Discovery of Novel LsrK Kinase Inhibitors: An Opportunity To Fight Antimicrobial Resistance was written by Stotani, Silvia;Gatta, Viviana;Medarametla, Prasanthi;Padmanaban, Mohan;Karawajczyk, Anna;Giordanetto, Fabrizio;Tammela, Paivi;Laitinen, Tuomo;Poso, Antti;Tzalis, Dimitros;Collina, Simona. And the article was included in Journal of Medicinal Chemistry in 2019.Product Details of 1711-11-1 This article mentions the following:

Antibiotic resistance is posing a continuous threat to global public health and represents a huge burden for society as a whole. In the past decade, the interference with bacterial quorum sensing (QS) (i.e., cell-cell communication) mechanisms has extensively been investigated as a valid therapeutic approach in the pursuit of a next generation of antimicrobials. (S)-4,5-Dihydroxy-2,3-pentanedione, commonly known as (S)-DPD, a small signaling mol. that modulates QS in both Gram-neg. and Gram-pos. bacteria, is phosphorylated by LsrK, and the resulting phospho-DPD activates QS. We designed and prepared a small library of DPD derivatives, characterized by five different scaffolds, and evaluated their LsrK inhibition in the context of QS interference. SAR studies highlighted the pyrazole moiety as an essential structural element for LsrK inhibition. Particularly, four compounds were found to be micromolar LsrK inhibitors (IC₅₀ ranging between 100 μM and 500 μM) encouraging further exploration of novel analogs as potential new antimicrobials. In the experiment, the researchers used many compounds, for example, 3-Cyanobenzoyl chloride (cas: 1711-11-1Product Details of 1711-11-1).

3-Cyanobenzoyl chloride (cas: 1711-11-1) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Product Details of 1711-11-1

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Merging Iridium-Catalyzed C-H Borylations with Palladium-Catalyzed Cross-Couplings Using Triorganoindium Reagents was written by Jayasundara, Chathurika R. K.;Gil-Negrete, Jose M.;Montero Bastidas, Jose R.;Chhabra, Arzoo;Martinez, M. Montserrat;Perez Sestelo, Jose;Smith, Milton R. III;Maleczka, Robert E. Jr.. And the article was included in Journal of Organic Chemistry in 2022.Quality Control of 2-(3-Chloro-5-(trifluoromethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane This article mentions the following:

A versatile and efficient method to prepare borylated arenes furnished with alkyl, alkenyl, alkynyl, aryl and heteroaryl functional groups is developed by merging Ir-catalyzed C-H borylations (CHB) with a chemoselective Pd-catalyzed cross-coupling of triorganoindium reagents (Sarandeses-Sestelo coupling) with aryl halides bearing a boronic ester substituent. Using triorganoindium cross-coupling reactions to introduce unsaturated moieties enables the synthesis of borylated arenes that would be difficult to access through the direct application of the CHB methodol. The sequential double catalyzed procedure can be also performed in one vessel. In the experiment, the researchers used many compounds, for example, 2-(3-Chloro-5-(trifluoromethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (cas: 942069-65-0Quality Control of 2-(3-Chloro-5-(trifluoromethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane).

2-(3-Chloro-5-(trifluoromethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (cas: 942069-65-0) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Quality Control of 2-(3-Chloro-5-(trifluoromethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Tris(2,6-difluorophenyl)phosphite complexes of platinum group metals: structure of trans-PtCl₂(PEt₃){P(O-2,6-C₆H₃F₂)₃} was written by Coleman, Karl S.;Holloway, John H.;Hope, Eric G.;Russell, David R.;Saunders, Graham C.;Atherton, Malcolm J.. And the article was included in Polyhedron in 1995.HPLC of Formula: 39722-81-1 This article mentions the following:

The reactions between the F-containing ligand tris(2,6-difluorophenyl) phosphite and the transition metal species [{η⁶-1,4-CH₃C₆H₄CHMe₂}RuCl₂]₂, [Cp^*RhCl₂]₂, [RhCl(CO)₂]₂, [PtCl₂(PEt₃)]₂ and PtCl₂ yield {η⁶-1,4-CH₃C₆H₄CHMe₂}RuCl₂{P(O-2,6-C₆H₃F₂)₃}, Cp^*RhCl₂{P(O-2,6-C₆H₃F₂)₃}, trans-RhCl(CO){P(O-2,6-C₆H₃F₂)₃}₂, trans-PtCl₂(PEt₃){P(O-2,6-C₆H₃F₂)₃} and trans-PtCl₂{P(O-2,6-C₆H₃F₂)₃}₂, resp. The mol. structure of trans-PtCl₂(PEt₃){P(O-2,6-C₆H₃F₂)₃} was determined by single-crystal x-ray crystallog. In the experiment, the researchers used many compounds, for example, Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1HPLC of Formula: 39722-81-1).

Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.HPLC of Formula: 39722-81-1

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Visible-light-Catalyzed [3 + 1 + 2] Coupling Annulations for the Synthesis of Unsymmetrical Tri-substituted Amino-1,3,5-triazines was written by Guo, Wei;Zhao, Mingming;Du, Chengtang;Zheng, Lvyin;Li, Luo;Chen, Liping;Tao, Kailiang;Tan, Wen;Xie, Zhen;Cai, Liuhuan;Fan, Xiaolin;Zhang, Kai. And the article was included in Journal of Organic Chemistry in 2019.Recommanded Product: 18637-02-0 This article mentions the following:

A visible-light catalyzed [3 + 1 + 2] annulation for the synthesis of unsym. tri-substituted amino-1,3,5-triazines I (R¹ = Me, C₆H₅, 4-FC₆H₄, etc.; R² = 4-FC₆H₄, 4-EtC₆H₄, 2-ClC₆H₄, etc.) from amidines, isothiocyanates and 1,1,3,3-tetramethylguanidines has been developed. The method exhibits the advantages of easily available starting materials, insensitive to air and moisture, wide substrate scopes, high step economy, mild, metal- and ligand-free conditions, which has potential applications in the organic, medicinal and material chem. In the experiment, the researchers used many compounds, for example, 2-Chloro-benzamidine hydrochloride (cas: 18637-02-0Recommanded Product: 18637-02-0).

2-Chloro-benzamidine hydrochloride (cas: 18637-02-0) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Recommanded Product: 18637-02-0

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

N-alkylation and o-alkylation of ethyl 4-(4,6-dimethoxypyrimidin-2-yl)-2-oxo-1,2-dihydroquinoline-3-carboxylate was written by Li, Yuanxiang. And the article was included in Youji Huaxue in 2013.Quality Control of 2-(Chloromethyl)-1,3-difluorobenzene This article mentions the following:

Twenty novel N-substituted and O-substituted compounds were prepared starting from Et 4-(4,6-dimethoxypyrimidin-2-yl)-2-oxo-1,2-dihydroquinoline-3-carboxylate. Various halogenated hydrocarbons were used as resource of alkylation and NaH as base in N,N-dimethylformamide (DMF) at room temperature. The structures of alkylation products were confirmed by ‘H NMR, IR, MS and elemental anal. Two isomer structures were further determined by representative X-ray structures of I and II. The alkylation reaction was performed in mild conditions with a total yield of 89%-98%. Among them, the main product N-alkylation was obtained in 47%-77% yield, and O-alkylation was simultaneously obtained in 21%-49% yield by a simple one-pot reaction. In the experiment, the researchers used many compounds, for example, 2-(Chloromethyl)-1,3-difluorobenzene (cas: 697-73-4Quality Control of 2-(Chloromethyl)-1,3-difluorobenzene).

2-(Chloromethyl)-1,3-difluorobenzene (cas: 697-73-4) belongs to organic chlorides. Organochlorines are organic compounds having multiple chlorine atoms. They were the first synthetic pesticides that were used in agriculture. They are resistant to most microbial and chemical degradations. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Quality Control of 2-(Chloromethyl)-1,3-difluorobenzene

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Development of composite thin-film nanofiltration membranes based on polyethersulfone for water purification was written by El-Zahhar, Adel A.;Alghamdi, Majed M.;Alshahrani, Norah M.;Awwad, Nasser S.;Idris, Abubakr M.. And the article was included in Journal of Polymers and the Environment in 2022.Recommanded Product: 4422-95-1 This article mentions the following:

The development of thin-film composite membranes has gained more importance as they exhibit higher permeability, higher solute rejection and improved antifouling behavior. The incorporation of hydrophilic nanomaterials within the composite thin film has reported to effectively increase the hydrophilicity and improve the membrane performance. In this study novel thin-film composite nanofiltration membranes were prepared by interfacial polymerization of trimesoyl chloride, polyvinylpyrolidone (PVP) and montmorillonite (MMT) composite on the porous polyethersulfone membrane. The effect of preparation parameters was studied as; reaction time, PVP concentration and MMT content. The properties of the prepared composite thin-film membranes were analyzed in terms of their chem. structure, surface morphol. features, pure water contact angle, zeta potential, pure water permeation flux (PWP) and solutes rejection. The prepared composite thin-film membranes showed smoother surfaces, different surfaces functionality and amphoteric surfaces with points of zero charge at pH 7-7.5. The PWP was found to increase with increasing MMT content up to 0.10 wt%. The rejection of crystal violet dye (CV) was studied using the prepared membranes. The membrane with 0.5% PVP, 0.10% MMT and 6 min reaction time showed PWP of 18.1 L/m2 h bar and CV rejection of 80.01%. The rejection of Na2SO4 and MgCl2 increased with increasing MMT content and reached 96% and 35.4%, resp. The steady state flux was decreased by 5% with increasing MMT content from 0.10 to 0.12 wt% indicating improved antifouling behavior with MMT. In the experiment, the researchers used many compounds, for example, Trimesoylchloride (cas: 4422-95-1Recommanded Product: 4422-95-1).

Trimesoylchloride (cas: 4422-95-1) belongs to organic chlorides. Organochlorines are organic compounds having multiple chlorine atoms. They were the first synthetic pesticides that were used in agriculture. They are resistant to most microbial and chemical degradations. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Recommanded Product: 4422-95-1

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

The closeness of fit of antibenzoate antibodies about haptens and the orientation of the haptens in combination was written by Pressman, David;Siegel, Malcolm;Hall, Luther A. R.. And the article was included in Journal of the American Chemical Society in 1954.Related Products of 5344-49-0 This article mentions the following:

The inhibitory action of chloro-substituted phenylazobenzoates on the specific precipitation of antibodies formed against benzoate ions yielded information about the closeness of fit about hapten of the previously uninvestigated portion of the antibody complementary region. With antibodies to the o-azobenzoate ion, the fit about the benzene ring was closest in the 3- and 4-positions and least close in the 6-position. With antibodies to m-benzoate, the fit was closest in the 4-position, least close in the 5-position, and intermediate in the 2- and 6-positions. For those cases where 2 orientations for the combination of hapten with antibody are possible, such as with the chlorobenzoates, the relative distribution was calculated For example, m-chlorobenzoate, which has been considered to combine with anti-m-azobenzoate antibodies with the Cl in the azospecific site of the antibody, is calculated to combine to the extent of 10% in the nonpreferred orientation. The following substituted benzoic acids (R = p-hydroxyphenylazo) were prepared, m.ps. are given: 3,2-Cl, R, 187-9°; 4,2-Cl, R, 245-6°; 5,2-Cl, R, 231-3°; 6,2-Cl, R, 194-5°; 2,3-Cl, R, 219-21°; 4,3-Cl, R, 268-71°; 5,3-Cl, R, 239-41°; 6,3-Cl, R, 244-6°; 2,4-Cl, R, 213-15°; o-R, 207.8-8.2°; m-R, 230-2°; p-R, 277-9° (decomposition). In the experiment, the researchers used many compounds, for example, 2-Chloro-6-nitrobenzoic acid (cas: 5344-49-0Related Products of 5344-49-0).

2-Chloro-6-nitrobenzoic acid (cas: 5344-49-0) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Related Products of 5344-49-0

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Heterogeneous, platinum-catalyzed hydrogenation of (diolefin)dialkylplatinum(II) complexes: kinetics was written by Miller, Timothy M.;Izumi, Alan N.;Shih, Yen Shiang;Whitesides, George M.. And the article was included in Journal of the American Chemical Society in 1988.Reference of 12083-92-0 This article mentions the following:

(Diolefin)dialkylplatinum(II) complexes [(Ol₂)PtR₂] are rapidly reduced by H₂ in the presence of Pt black catalyst: the organic groups are converted to alkanes, and the Pt(II) to Pt(0). This Pt(0) is incorporated into the surface of the Pt black catalyst. The reaction is a heterogeneous process catalyzed by Pt(0). Its rate is strongly influenced by mass transport and by the surface area of the catalyst. It is poisoned by dineopentylmercury, dioctyl sulfide, and tri-tert-butylphosphines. Because the catalyst surface is constantly renewed by deposition of Pt, the reaction is less sensitive to poisoning than more familiar Pt-catalyzed reactions such as hydrogenation of olefins. The form of the kinetic rate law observed for reduction of (1,5-cyclooctadiene)dimethylplatinum(II) depends on the reaction conditions. Two limiting kinetic regimes are observed In one, mass transport of H₂ to the catalyst surface is rate-limiting; in the second, a reaction occurring on the Pt surface is rate-limiting. The activation energy for reaction in the mass transport limited regime is ∼3 kcal/mol and that in the reaction rate limited regime is ∼15 kcal/mol. In neither regime is there a kinetic isotope effect: ν_H2/ν_D2 = 1.0. Examination of the relative rates of reaction of a series of (diolefin)dialkyl + platinum(II) complexes indicates that the structure of the diolefin has a greater influence on the rate of reaction than does that of the alkyl group. Competitive experiments show that rates are influenced by adsorption of the (Ol₂)PtR₂ complex to the catalyst. These studies suggest that the Pt-catalyzed reaction of (Ol₂)PtR₂ with H₂ takes place by a mechanism analogous to that of the Pt-catalyzed heterogeneous hydrogenation of olefins. The Pt atom originally present in the soluble complex is incorporated into the surface of the Pt catalyst and becomes the reactive site for a subsequent cycle of chemisorption and reaction. The reaction of (Ol₂)PtR₂ complexes with H₂ thus provides a new method for generating Pt-surface alkyls under conditions representative of those used in heterogeneous Pt-catalyzed processes. In the experiment, the researchers used many compounds, for example, Dichlorodi(cyclopenta-1,3-dien-1-yl)platinate(II) (cas: 12083-92-0Reference of 12083-92-0).

Dichlorodi(cyclopenta-1,3-dien-1-yl)platinate(II) (cas: 12083-92-0) belongs to organic chlorides. Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Reference of 12083-92-0

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics