Tag: M.W=100-150

I found the field of Chemistry very interesting. Saw the article 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 published in 2019. Safety of 2-Chloro-6-methylaniline, Reprint Addresses Xia, AB (corresponding author), Zhejiang Univ Technol, Catalyt Hydrogenat Res Ctr, Zhejiang Key Lab Green Pesticides & Cleaner Prod, Hangzhou 310014, Zhejiang, Peoples R China.. The CAS is 87-63-8. Through research, I have a further understanding and discovery of 2-Chloro-6-methylaniline

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.

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.. Safety of 2-Chloro-6-methylaniline

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

Authors Yuen, OY; So, CM in WILEY-V C H VERLAG GMBH published article about REDUCTIVE ELIMINATION; CARBONYL-COMPOUNDS; ARYL HALIDES; DESIGN; POSITION; ACETONE; BONDS in [Yuen, On Ying; So, Chau Ming] Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Hung Hom, Hong Kong, Peoples R China; [Yuen, On Ying; So, Chau Ming] Hong Kong Polytech Univ, State Key Lab Chem Biol & Drug Discovery, Hung Hom, Kowloon, Hong Kong, Peoples R China; [So, Chau Ming] Hong Kong Polytech Univ, Shenzhen Res Inst, Shenzhen, Peoples R China in 2020.0, Cited 45.0. Computed Properties of C7H7Cl. The Name is 1-Chloro-2-methylbenzene. Through research, I have a further understanding and discovery of 95-49-8

This study describes the first palladium-catalyzed, site-selective alpha- and gamma-arylation of alpha,beta-unsaturated ketones with (hetero)aryl halides. A wide range of hetero(aryl)halides coupled with alpha,beta-unsaturated ketones, and transformation into the arylated products proceeded with excellent to good yields. The site selectivity of the reaction is switchable by simply changing the phosphine ligand to access either alpha-arylated or gamma-arylated products in good to excellent yields by using a low catalyst loading, and the method demonstrates good functional-group compatibility.

Computed Properties of C7H7Cl. About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Yuen, OY; So, CM 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 2019 J MED CHEM published article about VITRO PHARMACOLOGICAL CHARACTERIZATION; RELEASE; AGONIST; SCHIZOPHRENIA; DISCOVERY; TARGETS; SERIES; ACID in [Li, Yuanheng; Jiao, Wenxuan; Huang, Zongze; Meng, Ying; Luo, Laichun; Wang, KeWei; Sun, Qi] Peking Univ, Sch Pharmaceut Sci, State Key Lab Nat & Biomimet Drugs, Beijing 100191, Peoples R China; [Sun, Lilan; Zhang, Fang; Wang, KeWei] Qingdao Univ, Sch Pharm, Dept Pharmacol, Qingdao 266021, Peoples R China; [Yang, Taoyi; Tang, Jingshu; Huang, Xiaomin; Wang, Xintong; Bian, Xiling; Wang, KeWei] Peking Univ, Sch Pharmaceut Sci, Dept Mol & Cellular Pharmacol, Beijing 100191, Peoples R China in 2019, Cited 49. The Name is 2-Chloro-6-methylaniline. Through research, I have a further understanding and discovery of 87-63-8. COA of Formula: C7H8ClN

A series of novel thiazolo[4,5-d]pyrimidin-7(6H)-ones (3aa-3eq) were designed, synthesized, and evaluated as the type I positive allosteric modulators of human alpha 7 nAChR expressed in Xenopus ooctyes by a two-electrode voltage clamp. The structure-activity relationship analysis identified the compound 3ea as a potent and efficacious PAM with the maximum activation effect of the alpha 7 current of over 1633% in the presence of acetylcholine (100 mu M) and an EC50 = 1.26 mu M. It is highly specific to alpha 7 nAChR over other subtypes of nAChR, 5-HT3A, NMDA, and GABA(A) receptors. Compound 3ea showed an elimination half-life of 10.8 +/- 1.5 h for 3 mg/kg, i.v., and 7.4 +/- 1.1 h for 60 mg/kg, i.g. in rat. It also exhibited sufficient blood-brain barrier penetration with no significant effect on hERG channel. Most importantly, compound 3ea dose-dependently (0.1-1 mg/kg, i.p.) reversed the prepulse inhibition deficit induced by MK-801 in the mouse schizophrenia model. X

COA of Formula: C7H8ClN. About 2-Chloro-6-methylaniline, If you have any questions, you can contact Li, YH; Sun, LL; Yang, TY; Jiao, WX; Tang, JS; Huang, XM; Huang, ZZ; Meng, Y; Luo, LC; Wang, XT; Bian, XL; Zhang, F; Wang, KW; Sun, Q or concate me.

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

An article Design, synthesis and application of triazole ligands in suzuki miyaura cross coupling reaction of aryl chlorides WOS:000517780500022 published article about PALLADIUM-CATALYZED SUZUKI; STATE; BASE in [Jabeen, Sobia; Khera, Rasheed Ahmad; Iqbal, Javed] Univ Agr Faisalabad, Dept Chem, Faisalabad 38040, Pakistan; [Iqbal, Javed] Univ Agr Faisalabad, Punjab Bioenergy Inst, Faisalabad 38040, Pakistan; [Asgher, Muhammad] Univ Agr Faisalabad, Dept Biochem, Faisalabad 38040, Pakistan in 2020.0, Cited 33.0. Recommanded Product: 95-49-8. The Name is 1-Chloro-2-methylbenzene. Through research, I have a further understanding and discovery of 95-49-8

DFT calculations have been demonstrated to be a valuable tool for the mechanistic study of reaction which is difficult to acquire from pure experimental techniques. Structural, electronic and coordination aspects of synthesized triazole ligands were investigated theoretically by structure optimization on Gaussian 09 package by DFT approach at B3LYP/6-31G (d, p). HOMO-LUMO energy gaps correlated to its chemical reactivity and this information applied to interpret the role of ligand in the formation of ligand-metal complex. Electron rich environment around the triazole core stabilized the HOMO orbital and made these electrons available to form complex with Pd centre. The DFT calculations provide a plausible mechanism for the reaction that is consistent with the available experimental facts. A series of triazole ligands have been synthesized via efficient 1,3-dipolar cycloaddition of readily available azide and alkynes for coordination to Pd centre. Characterization of all the synthesized compounds was done by FTIR, H-1 NMR, C-13 NMR and HRMS. Their ligand-Pd complexes provided excellent yields in the Suzuki-Miyaura coupling reactions (up to 92% yield) of unactivated aryl chlorides. Ligand 4-(2,6-dimethoxyphenyl)-1-phenyl-1H-1,2,3-triazole (L2) was found to be most effective ligand because of electron donating 2,6 dimethoxy phenyl moiety attached to triazole ring at 4-position that facilitated the formation of electron rich ligand-catalyst complex. The complex favoured the oxidative addition step of Pd across the aryl chloride substrate and thus allowed for the development of highly active ligand-catalyst system for Suzuki reaction. During computational analysis, 4-(2,6-dimethoxyphenyl)-1-phenyl-1H-1,2,3-triazole (L2) also showed lowest band gap due to electron rich distribution pattern on the HOMO that are involve in ligand-Pd complex formation. Conclusively, these triazoles ligands were found to be more competent and attractive for palladium catalyst because of simplistic pathway for the synthesis of triazole motif and the ease of individual tuning of the substituents on triazole core or exocyclic to it. (C) 2020 Elsevier B.V. All rights reserved.

About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Jabeen, S; Khera, RA; Iqbal, J; Asgher, M or concate me.. Recommanded Product: 95-49-8

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

Product Details of 95-49-8. In 2019.0 RSC ADV published article about ONE-POT SYNTHESIS; RUTHENIUM-CATALYZED AMINATION; HETEROCYCLIZATION SYNTHESIS; DEHYDROGENATIVE SYNTHESIS; NITROGEN-HETEROCYCLES; 3-COMPONENT SYNTHESIS; BORROWING HYDROGEN; DERIVATIVES; EFFICIENT; ALDEHYDES in [Debnath, Pradip] Maharaja Bir Bikram Coll, Dept Chem, Agartala 799004, Tripura, India in 2019.0, Cited 91.0. The Name is 1-Chloro-2-methylbenzene. Through research, I have a further understanding and discovery of 95-49-8.

An efficient and operationally simple protocol has been demonstrated for the synthesis of 1,3,5,7-tetrasubstituted pyrimido[4,5-d]pyrimidines via TBHP-mediated direct oxidative coupling of N-uracil amidines and methylarenes under metal-free conditions. Due to the inherent stability of methylarenes compared to aldehydes, the presented synthetic protocol is adaptable to a broad substrate scope, is operationally simple, has no need for stringent protection in the whole preparation process, and has the potential to prepare valuable products that are currently inaccessible or challenging to prepare using conventional methods. It is a significantly important complement to the conventional synthetic methods. The reaction possesses an efficient tandem oxidation-imination-cyclization process.

Product Details of 95-49-8. About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Debnath, P 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

An article Redox-neutral photochemical Heck-type arylation of vinylphenols activated by visible light WOS:000518011700008 published article about C-H ARYLATION; DIARYLIODONIUM SALTS; ROOM-TEMPERATURE; METAL-FREE; UNACTIVATED ALKYL; ELECTRON-TRANSFER; CHLOROGENIC ACID; TRANSFORMATIONS; HETEROARENES; DISSOCIATION in [Liang, Kangjiang; Li, Tao; Li, Na; Zhang, Yang; Shen, Lei; Ma, Zhixian; Xia, Chengfeng] Yunnan Univ, Lib Yunnan Univ,Sch Chem Sci & Technol, Key Lab Med Chem Nat Resource,Minist Educ & Yunna, State Key Lab Conservat & Utilizat Bioresources Y, 2 North Cuihu Rd, Kunming 650091, Yunnan, Peoples R China in 2020.0, Cited 57.0. Recommanded Product: 1-Chloro-2-methylbenzene. The Name is 1-Chloro-2-methylbenzene. Through research, I have a further understanding and discovery of 95-49-8

Disclosed herein is a photochemical Heck-type arylation of vinylphenols with non-activated aryl and heteroaryl halides under visible light irradiation. Preliminary mechanistic studies suggested that the colored vinylphenolate anions acted as a strong reducing photoactivator to directly activate (hetero)aryl halides without the need for any sacrificial reductants. The photochemically generated aryl radicals coupled with another molecule of vinylphenol to afford the Heck-type arylation product in a regiospecific and stereoselective manner. The developed photochemical arylation protocol showed exceptional functional group tolerance and was successfully applied in the challenging late-stage modification of natural products without any protection-deprotection procedures.

Recommanded Product: 1-Chloro-2-methylbenzene. About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Liang, KJ; Li, T; Li, N; Zhang, Y; Shen, L; Ma, ZX; Xia, CF 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

Category: chlorides-buliding-blocks. In 2019 BMC CHEM published article about CHEMOSELECTIVE HYDROGENATION; PALLADIUM NANOPARTICLES; SELECTIVE HYDROGENATION; RECYCLABLE CATALYST; REDUCTION 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 in 2019, Cited 32. 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.

Category: chlorides-buliding-blocks. 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

An article Efficient Hydrogen Generation from Ammonia Borane and Tandem Hydrogenation or Hydrodehalogenation over AuPd Nanoparticles WOS:000516665500025 published article about ALLOY NANOPARTICLES; HYDROLYTIC DEHYDROGENATION; PALLADIUM NANOPARTICLES; SUPPORTED PD; CATALYST; GRAPHENE; REDUCTION; NITRO; NANOCRYSTALS in [Muzzio, Michelle; Lin, Honghong; Wei, Kecheng; Guo, Xuefeng; Yu, Chao; Yom, Typher; Yin, Zhouyang; Sun, Shouheng] Brown Univ, Dept Chem, Providence, RI 02912 USA; [Xi, Zheng] Univ Cent Florida, Dept Chem, Orlando, FL 32816 USA in 2020.0, Cited 50.0. Quality Control of 1-Chloro-2-methylbenzene. The Name is 1-Chloro-2-methylbenzene. Through research, I have a further understanding and discovery of 95-49-8

Alternatives to the use of pressurized hydrogen (H-2) in chemical syntheses are of growing interest and importance in developing safer protocols. Ammonia borane (AB), with its high hydrogen content and ability to release H-2 under mild conditions, is one potential solution. However, optimization of AB dehydrogenation and further the use of AB as a H-2 source to facilitate tandem one-pot reactions with both high activity and stability is an ongoing research challenge. In this work, monodisperse AuPd nanoparticle (NP) catalysts were synthesized and systematically studied for AB dehydrogenation, and Au-rich NPs were found to be the most active composition for AB methanolysis with a turnover frequency (TOF) of 160 min(-1) surpassing most Pd-based NP catalysts to date. More importantly, Au-rich NPs were also active in the one-pot tandem reduction of a series of nitro-groups and the hydrodehalogenation of mono- and polyhalogenated persistent chemical pollutants under mild reaction conditions using only a 2:1 molar ratio of AB to substrate. The AuPd catalyst was stable after ten reaction runs for AB methanolysis and five reaction runs for tandem one-pot reactions without a loss of activity or change in NP structure and morphology.

Quality Control of 1-Chloro-2-methylbenzene. About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Muzzio, M; Lin, HH; Wei, KC; Guo, XF; Yu, C; Yom, T; Xi, Z; Yin, ZY; Sun, SH 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

An article Efficient synthesis of 2-aryl-2H-indazoles by base-catalyzed benzyl C-H deprotonation and cyclization WOS:000592062700009 published article about ORTHO-ACYLATION; 2H-INDAZOLES; FUNCTIONALIZATION; AZOXYBENZENES; CONDENSATION; AZOBENZENES; ANNULATION; ACCESS; MILD in [Jin, Guo-Qing; Gao, Wen-Xia; Zhou, Yun-Bing; Liu, Miao-Chang; Wu, Hua-Yue] Wenzhou Univ, Coll Chem & Mat Engn, Wenzhou 325035, Peoples R China in 2020, Cited 38. Application In Synthesis of 2-Chloro-6-methylaniline. The Name is 2-Chloro-6-methylaniline. Through research, I have a further understanding and discovery of 87-63-8

A straightforward and efficient method for the preparation of 2-aryl-2H-indazoles from ortho-alkyl substituted azoxybenzenes is presented. The reaction proceeds through base-catalyzed benzyl C-H deprotonation and cyclization to afford 2-aryl-2H-indazoles in good yields. This synthetic strategy can be applied to the construction of several fluorescent and bioactive molecules.

Application In Synthesis of 2-Chloro-6-methylaniline. About 2-Chloro-6-methylaniline, If you have any questions, you can contact Jin, GQ; Gao, WX; Zhou, YB; Liu, MC; Wu, HY or concate me.

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

An article Volatile organic compounds analysis and characterization on activated biochar prepared from rice husk WOS:000495128800006 published article about REMOVAL; CARBON; PYROLYSIS; SOIL; TECHNOLOGY; ADSORPTION; SORPTION; BIOMASS; SYSTEMS; HEALTH in [Li, J.; Li, Q.; Qian, C.; Wang, X.; Lan, Y.; Wang, B.; Yin, W.] Dalian Maritime Univ, Coll Environm Sci & Engn, Dalian 116026, Peoples R China in 2019, Cited 31. The Name is 1-Chloro-2-methylbenzene. Through research, I have a further understanding and discovery of 95-49-8. COA of Formula: C7H7Cl

Activated biochar has been used in various areas, i.e., wastewater treatment. However, biochar contains volatile organic compounds, some of which are toxic organic pollutants that pose health risks to human. In this study, activated biochar was prepared by pyrolysis method using rice husks as raw materials and H2O as the activator. The volatile organic compound concentration of biochar before and after activation, as well as the adsorption characteristics of activated biochar, was investigated. The structure of the biochar was characterized by FTIR, SEM, and specific surface area analyzer. The results showed that activated biochar surface was mainly composed of carboxyl groups, and no phenolic hydroxyl or lactone groups formed during the process. In total, 54 volatile organic compounds were analyzed by a gas chromatography-mass spectrometer. The detection frequency of 45 volatile organic compounds reached 100%. The concentration of sum of these compounds was 93.26 and 110.62 mu g/g in the biochar before and after activation, respectively. Results of adsorption experiments showed that the adsorption and resolution of activated biochar to n-hexane were 29.33 and 5.4 mg/g, respectively. Compared to the biochar sample without activation, the activated biochar with the ratio of charcoal to water of 3:1 showed the best adsorption to n-hexane, whose surface area reached 351.23 m(2)/g.

About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Li, J; Li, Q; Qian, C; Wang, X; Lan, Y; Wang, B; Yin, W or concate me.. COA of Formula: C7H7Cl

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