Month: October 2021

An article Occurrence of organic compounds in groundwater of Saudi Arabia WOS:000483540400001 published article about DRINKING-WATER; MICROORGANIC CONTAMINANTS; AQUIFERS; QUALITY; ENGLAND; FATE in [Alquwaizany, Abdulaziz S.; Alfadul, Sulaiman M.; Khan, Mujahid A.; Alabdulaaly, Abdulrahman, I] King Abdulaziz City Sci & Technol, POB 6086, Riyadh 11442, Saudi Arabia in 2019.0, Cited 38.0. Computed Properties of C7H7Cl. The Name is 1-Chloro-2-methylbenzene. Through research, I have a further understanding and discovery of 95-49-8

The presence of organic compounds in drinking water is well recognized in many developing countries; however, the occurrence of organic contaminants in the groundwater of Saudi Arabia, which is the main source of drinking water in the country, is not well documented. A national comprehensive study was carried out to assess the occurrence of organic compounds in groundwater wells used for drinking water purpose, in different regions of Saudi Arabia. A total of 993 well water samples were collected from all 13 administrative regions of the kingdom. Samples were analyzed for a total of 131 organic compounds using the standard methods. The results indicated that total organic carbon values were in the range of 0.01 to 84.13 mg/L with an average weighted value of 12.61 mg/L. Organic compounds were detected in only 9 regions, with 19.84% of the samples containing organic compounds. Only 96 wells (9.67%) showed contents of organic compounds above the safe limits. Pesticides were not detected in any of the well water samples. Overall, organic compounds were found in only 197 out of 993 wells (19.84%) in the whole country. Most of the wells containing organic compounds were located in residential, industrial, and agriculture areas. Riyadh region and Eastern Province were found to have the most affected wells as compared to other regions. Several regions did not show any organic compounds in the well waters. It can be said that the problem of groundwater contamination with organic compounds in Saudi Arabia is not acute and is manageable at present. It is, however, recommended that a regular monitoring of drinking water wells of all regions should be carried out by the competent authorities for organic compounds to know any contamination if and when it happens. Preventing such contaminants from reaching drinking water sources and protecting drinking water well heads from such contaminants remains a priority.

Computed Properties of C7H7Cl. About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Alquwaizany, AS; Alfadul, SM; Khan, MA; Alabdulaaly, AI or concate me.

Reference:
Patent; Nanjing Zhongteng Chemical Co., Ltd.; Zhong Hua; Lu Minshan; Chen Xiuzhen; Liu Qiaobao; Yin Hengbo; Wang Aili; (8 pag.)CN104876790; (2017); B;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Guo, HC; Zheng, RH; Jiang, HJ; Xu, ZY; Xia, AB in [Guo, Haichang; Zheng, Renhua; Jiang, Huajiang] Taizhou Univ, Sch Pharmaceut & Mat Engn, Taizhou 318000, Peoples R China; [Xu, Zhenyuan; Xia, Aibao] Zhejiang Univ Technol, Catalyt Hydrogenat Res Ctr, Zhejiang Key Lab Green Pesticides & Cleaner Prod, Hangzhou 310014, Zhejiang, Peoples R China published Preparation of sub-microspherical Fe3O4@PDA-Pd NPs catalyst and application in catalytic hydroreduction reaction of halogenated aromatic nitro compounds to prepare halogenated aromatic amines in 2019, Cited 32. HPLC of Formula: C7H8ClN. The Name is 2-Chloro-6-methylaniline. Through research, I have a further understanding and discovery of 87-63-8.

Background The side reactions of dehalogenation or C-N coupling tend to occur when halogenated aromatic amines are prepared by catalytic hydrogenation reduction of halogenated aromatic nitro compounds. In this paper, we prepared the sub-microspherical Fe3O4@PDA-Pd NPs catalyst apply it efficiently in the hydrogenation reduction of halogenated aromatic nitro compounds to prepare the halogenated aromatic amines under atmospheric pressure. The catalyst shows a high selectivity of greater than 96% and can effectively inhibit the occurrence of the side reactions of dehalogenation and C-N coupling. Results The optimum condition of the hydroreduction reaction is when tetrahydrofuran is used as solvent and the reaction happens at 50 degrees C for 5 h. The selectivity of the chlorinated aromatic amine and the fluorinated aromatic amine products exceed 99% and the yield exceeds 90%. Only a small amount of dehalogenated products and C-N coupling by-products were produced in the brominated aromatic compound and the iodinated aromatic compound. Conclusion We developed a promising method for preparing the superparamagnetic and strongly magnetic Fe3O4@PDA core-shell sub-microsphere-supported nano-palladium catalyst for catalyzing the hydrogenation reduction of halogenated aromatic nitro compounds. The halogenated aromatic amines were efficiently and highly selectively prepared under atmospheric pressure, with the side reactions of dehalogenation and C-N coupling effectively inhabited simultaneously.

HPLC of Formula: C7H8ClN. About 2-Chloro-6-methylaniline, If you have any questions, you can contact Guo, HC; Zheng, RH; Jiang, HJ; Xu, ZY; Xia, AB or concate me.

Reference:
Patent; ASTRAZENECA AB; NPS PHARMACEUTICALS, INC.; WO2006/20879; (2006); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

HPLC of Formula: C7H4Cl2O2. I found the field of Chemistry very interesting. Saw the article Characterization of luminescent hydroxyapatite@terbium complex core-shell composites using chlorobenzoic acid as ligands published in 2020, Reprint Addresses Jiang, GP; Tao, DL (corresponding author), Fuyang Normal Univ, Coll Chem & Mat Engn, Fuyang 236037, Peoples R China.. The CAS is 50-84-0. Through research, I have a further understanding and discovery of 2,4-Dichlorobenzoic acid.

Three kinds of novel hydroxyapatite@terbium complex core-shell composites were synthesized with 2-chlorobenzoic acid, 4-chlorobenzoic acid, and 2,4-dichlorobenzoic acid as the ligand, respectively. The XRD, UV/vis absorption and FT-IR results show that terbium ions are coordinated with ligands and the corresponding complexes are successfully included into composites. SEM and EDS results reveal that Tb complexes are fully and homogenously coated on the surface of hydroxyapatite (HAP) microspheres consisting of a large number of nanosized crystals. The strongest luminescence properties are obtained when 2,4-dichlorobenzoic acid is used as ligand. The study on fluorescence lifetime of composites shows that the lifetime is inversely related to emission intensity. TGA-DSC results indicate that the core-shell composites have an excellent thermal stability. Therefore, the current core-shell structure provides a cost-effective route to manufacture of biocompatible and heat-resistant highly luminescent materials. (C) 2020 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights reserved.

About 2,4-Dichlorobenzoic acid, If you have any questions, you can contact Jiang, GP; Song, LL; Tao, DL; Jin, F or concate me.. HPLC of Formula: C7H4Cl2O2

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

An article C(sp(3))-H activation-enabled cross-coupling of two aryl halides: an approach to 9,10-dihydrophenanthrenes WOS:000569981200026 published article about C-H ACTIVATION; DIRECT ARYLATION; EFFICIENT; DIHYDROPHENANTHRENE; FUNCTIONALIZATION; PHENANTHRENES; EXTENSION; ARYNES in [Gu, Yichao; Sun, Xueliang; Wan, Bin; Lu, Zhuoer; Zhang, Yanghui] Tongji Univ, Sch Chem Sci & Engn, Shanghai Key Lab Chem Assessment & Sustainabil, 1239 Siping Rd, Shanghai 200092, Peoples R China in 2020, Cited 63. Safety of 2,4-Dichlorobenzoic acid. The Name is 2,4-Dichlorobenzoic acid. Through research, I have a further understanding and discovery of 50-84-0

A palladium-catalyzed cross-coupling reaction of aryl halides with 2-chlorobenzoic acids has been developed. The reaction forms C(sp(3)), C(sp(2))-palladacycles through C(sp(3))-H activation. The palladacycles react with 2-chlorobenzoic acids through two successive C-C cross-couplings, and two C-C bonds are formed with high chemoselectivity. The reaction provides an innovative method for the synthesis of 9,10-dihydrophenanthrenes.

About 2,4-Dichlorobenzoic acid, If you have any questions, you can contact Gu, YC; Sun, XL; Wan, B; Lu, ZE; Zhang, YH or concate me.. Safety of 2,4-Dichlorobenzoic acid

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

Recently I am researching about MAGNETICALLY RECYCLABLE NANOCATALYST; ONE-POT; SELECTIVE REDUCTION; CATALYZED REDUCTION; MULTICOMPONENT REACTIONS; PALLADIUM NANOPARTICLES; FE3O4 NANOPARTICLES; ORGANIC-SYNTHESIS; FUNCTIONAL-GROUPS; N-ACETYLATION, Saw an article supported by the Research Council of Urmia University. COA of Formula: C7H4Cl2O2. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Zeynizadeh, B; Sepehraddin, F; Mousavi, H. The CAS is 50-84-0. Through research, I have a further understanding and discovery of 2,4-Dichlorobenzoic acid

Green, simple, and highly efficient various strategies for the straightforward reduction of carboxylic acids to corresponding alcohols have been developed by employing four different types of cost-effective hydrogen donors, namely sodium borohydride (NaBH4), ammonium formate (HCO2NH4), glycerol, and isopropanol (i-PrOH) in the presence of Fe3O4@APTMS@ZrCp2Clx ((x = 0, 1, 2)) as a robust and durable nanocatalyst under neat conditions. Also, the mentioned magnetically separable nanocatalyst was recovered and reused at least five times without significant loss in catalytic activity. In comparison with the known protocols for the direct reduction of carboxylic acids to corresponding alcohols, our current methods offer several benefits such as being straightforward (without isolation of aldehyde intermediates), mild reaction conditions, eco-friendly, short reaction times, good to excellent yields of the products, use of inexpensive hydrogen donors, recoverability, and reusability of the catalyst and so on.

COA of Formula: C7H4Cl2O2. About 2,4-Dichlorobenzoic acid, If you have any questions, you can contact Zeynizadeh, B; Sepehraddin, F; Mousavi, H or concate me.

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

An article High photocatalytic activity of a NiO nanodot-decorated Pd/SiC catalyst for the Suzuki-Miyaura cross-coupling of aryl bromides and chlorides in air under visible light WOS:000566793700008 published article about GENERAL-METHOD; PALLADIUM; NANOPARTICLES; NHC; BORYLATION; ACTIVATION; PHOTOREDOX; OXIDATION; BIARYLS; HALIDES in [Jiao, Zhi-Feng; Guo, Xiang-Yun] Changzhou Univ, Sch Petrochem Engn, Jiangsu Key Lab Adv Catalyt Mat & Technol, Changzhou 213164, Peoples R China; [Tian, Ya-Ming; Radius, Udo; Braunschweig, Holger; Marder, Todd B.; Guo, Xiao-Ning] Julius Maximilians Univ Wurzburg, Inst Anorgan Chem, D-97074 Wurzburg, Germany; [Tian, Ya-Ming; Radius, Udo; Braunschweig, Holger; Marder, Todd B.; Guo, Xiao-Ning] Julius Maximilians Univ Wurzburg, Inst Sustainable Chem & Catalysis Boron, D-97074 Wurzburg, Germany; [Jiao, Zhi-Feng; Zhang, Bin; Qiao, Yan; Wang, Ying-Xiong; Qin, Yong; Guo, Xiang-Yun] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China; [Hao, Cai-Hong] North Univ China, Sch Energy & Power Engn, Taiyuan 030051, Peoples R China; [Hao, Cai-Hong] North Univ China, Sch Mat Sci & Engn, Taiyuan 030051, Peoples R China in 2020.0, Cited 79.0. Product Details of 95-49-8. The Name is 1-Chloro-2-methylbenzene. Through research, I have a further understanding and discovery of 95-49-8

The Suzuki-Miyaura cross-coupling reaction is an effective process for C-C bond formation in organic synthesis. Herein, we report a NiO nanodot-decorated Pd/SiC catalyst, synthesized by atomic layer deposition, which shows high photocatalytic activity for the Suzuki-Miyaura coupling of both aryl bromides and chlorides with phenylboronic acid at 30 degrees C in air. The Mott-Schottky contact in SiC/Pd enhances the rapid transfer of the photogenerated electrons from SiC to Pd nanoparticles. Moreover, the energy different between the highest occupied molecular orbital of the ultrafine NiO nanodots and the Fermi level of Pd forces a spontaneous electron transfer from NiO to Pd. As a result, the concentrated electrons in the Pd nanoparticles can facilitate the cleavage of C-Br or C-Cl bonds, which normally requires rather high temperatures in thermal processes. The holes left on the SiC support can assist the cleavage of the C-B bond. (C) 2020 Elsevier Inc. All rights reserved.

Product Details of 95-49-8. About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Jiao, ZF; Tian, YM; Zhang, B; Hao, CH; Qiao, Y; Wang, YX; Qin, Y; Radius, U; Braunschweig, H; Marder, TB; Guo, XN; Guo, XY or concate me.

Reference:
Patent; Nanjing Zhongteng Chemical Co., Ltd.; Zhong Hua; Lu Minshan; Chen Xiuzhen; Liu Qiaobao; Yin Hengbo; Wang Aili; (8 pag.)CN104876790; (2017); B;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

In 2020 ORG LETT published article about C-H/O-H; (ELECTRON-DEFICIENT ETA(5)-CYCLOPENTADIENYL)RHODIUM(III) CATALYST; BENZOIC-ACIDS; CARBOXYLIC-ACIDS; OXIDATIVE ANNULATION; NATURAL-PRODUCTS; ACTIVATION/ALKYNE ANNULATION; WEAK COORDINATION; ALPHA-PYRONES; N BOND in [Mihara, Gen; Ghosh, Koushik; Miura, Masahiro] Osaka Univ, Grad Sch Engn, Dept Appl Chem, Suita, Osaka 5650871, Japan; [Nishii, Yuji] Osaka Univ, Grad Sch Engn, Frontier Res Base Global Young Researchers, Suita, Osaka 5650871, Japan in 2020, Cited 66. The Name is 2,4-Dichlorobenzoic acid. Through research, I have a further understanding and discovery of 50-84-0. Recommanded Product: 2,4-Dichlorobenzoic acid

Transition-metal-catalyzed activation of inert C-H bonds and subsequent C-C bond formation have emerged as powerful synthetic tools for the synthesis of elaborate cyclic molecules. In this report, we introduce an efficient synthetic method of 3,4-unsubstituted isocoumarins adopting an electron-deficient (CpRh)-Rh-E complex as the catalyst. The use of vinylene carbonate as a vinylene transfer reagent enables the direct construction of isocoumarins from readily available benzoic acids, without any external oxidants as well as bases. The reaction mechanism is evaluated by computational analysis to find an unprecedented rhodium shift event within the catalytic cycle.

About 2,4-Dichlorobenzoic acid, If you have any questions, you can contact Mihara, G; Ghosh, K; Nishii, Y; Miura, M or concate me.. Recommanded Product: 2,4-Dichlorobenzoic acid

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

I found the field of Chemistry very interesting. Saw the article Hydroarylation of Alkenes Using Anilines in Hexafluoroisopropanol published in 2020. Computed Properties of C7H8ClN, Reprint Addresses Colomer, I (corresponding author), Univ Autonoma Madrid, Dept Organ Chem, Madrid 28049, Spain.; Colomer, I (corresponding author), IMDEA Nanociencia, Madrid 28049, Spain.. The CAS is 87-63-8. Through research, I have a further understanding and discovery of 2-Chloro-6-methylaniline

Providing new methods for the selective functionalization of small molecules is highly desirable, because installing molecular diversity in a desired position, for example, allows one to modulate bioactive molecules. This work reports a method for the selective functionalization of anilines using hexafluoroisopropanol (HFIP) as a solvent to promote an acid-catalyzed hydroarylation of olefins. Mechanistic experiments revealed that HFIP both protonates the alkene and selectively enables anilines toward the electrophilic aromatic substitution. This powerful strategy has been applied to the functionalization of the anti-inflammatory mefenamic acid with chemocontrol and regiocontrol.

About 2-Chloro-6-methylaniline, If you have any questions, you can contact Colomer, I or concate me.. Computed Properties of C7H8ClN

Reference:
Patent; ASTRAZENECA AB; NPS PHARMACEUTICALS, INC.; WO2006/20879; (2006); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

COA of Formula: C7H8ClN. Authors Dinh, AN; Maddox, SM; Vaidya, SD; Saputra, MA; Nalbandian, CJ; Gustafson, JL in AMER CHEMICAL SOC published article about in [Dinh, Andrew N.; Maddox, Sean M.; Vaidya, Sagar D.; Saputra, Mirza A.; Nalbandian, Christopher J.; Gustafson, Jeffrey L.] San Diego State Univ, Dept Chem & Biochem, San Diego, CA 92182 USA in 2020, Cited 54. The Name is 2-Chloro-6-methylaniline. Through research, I have a further understanding and discovery of 87-63-8

We report a highly efficient ortho-selective electrophilic chlorination of phenols utilizing a Lewis basic selenoether catalyst. The selenoether catalyst resulted in comparable selectivities to our previously reported bis-thiourea ortho-selective catalyst, with a catalyst loading as low as 1%. The new catalytic system also allowed us to extend this chemistry to obtain excellent ortho-selectivities for unprotected anilines. The selectivities of this reaction are up to >20:1 ortho/para, while the innate selectivities for phenols and anilines are approximately 1:4 ortho/para. A series of preliminary studies revealed that the substrates require a hydrogen-bonding moiety for selectivity.

About 2-Chloro-6-methylaniline, If you have any questions, you can contact Dinh, AN; Maddox, SM; Vaidya, SD; Saputra, MA; Nalbandian, CJ; Gustafson, JL or concate me.. COA of Formula: C7H8ClN

Reference:
Patent; ASTRAZENECA AB; NPS PHARMACEUTICALS, INC.; WO2006/20879; (2006); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

An article Synthesis of novel indole derivatives containing double 1,3,4-oxadiazole moiety as efficient bactericides against phytopathogenic bacterium Xanthomonas oryzae WOS:000458121900002 published article about ANTIBACTERIAL ACTIVITY; BIOLOGICAL EVALUATION; LEAF-BLIGHT; ANALOGS; DESIGN; POTENT; WILT; GENOME in [Tian, Kun; Li, Xiao-Qin; Zhang, Li; Wu, Shou-Qun; Wan, Jin-Lin; Ouyang, Gui-Ping] Guizhou Univ, State Key Lab Breeding Base Green Pesticide & Agr, Key Lab Green Pesticide & Agr Bioengn, Minist Educ,Ctr Res & Dev Fine Chem, Guiyang 550025, Guizhou, Peoples R China; [Gan, Yi-Yuan; Meng, Jiao; Xu, Yang; Cai, Chao-Ting; Ouyang, Gui-Ping; Wang, Zhen-Chao] Guizhou Univ, Coll Pharm, Guiyang 550025, Guizhou, Peoples R China; [Ouyang, Gui-Ping; Wang, Zhen-Chao] Drug Synthet Engn Lab Guizhou Prov, Guiyang 550025, Guizhou, Peoples R China in 2019, Cited 37. The Name is 2,4-Dichlorobenzoic acid. Through research, I have a further understanding and discovery of 50-84-0. Recommanded Product: 2,4-Dichlorobenzoic acid

A series of novel indole derivatives containing double 1,3,4-oxadiazole moiety was designed, synthesized and evaluated for their antibacterial activities in vitro. These compounds were fully characterized by H-1 NMR, C-13 NMR, and HRMS. Bioassay results indicated that most of title compounds exhibited excellent antibacterial activities against rice bacterial pathogen Xanthomonas oryzae (Xoo). For example, compounds 7d, 7h, 7i, 7j, 7k, 7l and 7m had the half-maximal effective concentration (EC50) values of 52.31, 54.12, 40.65, 38.80, 51.13, 52.75 and 50.66 mu g/mL, respectively, which was better than that of commercial product bismerthiazol (BMT) (85.18 mu g/mL). The experimental results proved that indole derivatives bearing double 1,3,4-oxadiazole unit are promising candidates for the development of new agricultural bactericides against pathogenic bacterium Xoo. [GRAPHICS] .

About 2,4-Dichlorobenzoic acid, If you have any questions, you can contact Tian, K; Li, XQ; Zhang, L; Gan, YY; Meng, J; Wu, SQ; Wan, JL; Xu, Y; Cai, CT; Ouyang, GP; Wang, ZC or concate me.. Recommanded Product: 2,4-Dichlorobenzoic acid

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