What Kind of Chemistry Facts Are We Going to Learn About 1-Chloro-2-methylbenzene

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.

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

New learning discoveries about 95-49-8

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

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

What Kind of Chemistry Facts Are We Going to Learn About 95-49-8

Category: chlorides-buliding-blocks. About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Dandia, A; Mahawar, DK; Sharma, R; Badgoti, RS; Rathore, KS; Parewa, V or concate me.

Recently I am researching about C-H ACTIVATION; OXIDATIVE AMIDATION; GRAPHITE OXIDE; BOND FORMATION; EFFICIENT; REARRANGEMENT; AZIDES; AMINES; WATER; ACIDS, Saw an article supported by the Council for Scientific and Industrial Research INDIACouncil of Scientific & Industrial Research (CSIR) – India [02(0257)/16/EMR-II, 09/149(0671)/2015/EMR-I]; Science and Engineering Research Board [DST ECR/2015/000479]; University Grants CommissionUniversity Grants Commission, India [F. 18-1/2011 (BSR)]. Published in WILEY in HOBOKEN ,Authors: Dandia, A; Mahawar, DK; Sharma, R; Badgoti, RS; Rathore, KS; Parewa, V. The CAS is 95-49-8. Through research, I have a further understanding and discovery of 1-Chloro-2-methylbenzene. Category: chlorides-buliding-blocks

Graphene oxide (GO)-catalyzed selective synthesis of amides via C-Sp3-H activation of methylarenes and consequent C-N bond formation with anilines under aqueous medium has been described. Oxygen functionality allied with GO surface played a dual role both as acid catalyst and oxidizing agent to some extent. However, GO has a copious effect on the reaction, shown by a high TOF value with TBHP as co-oxidant. The decisive role of carboxylic acid functional groups on GO nanosheets in this metal-free strategy has been confirmed and was monitored by various analytic techniques viz. Fourier transform-infrared, UV-Vis, Raman and XPS. A plausible mechanism was proposed by control experiments and by the isolation of the intermediate. Over-oxidation of methylarenes was not detected, and high recyclability of the carbocatalyst with its heterogeneous behavior facilitated the isolation and purification of the desired products. We have further explored the utility of this process for the chemoselective synthesis of benzimidazoles.

Category: chlorides-buliding-blocks. About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Dandia, A; Mahawar, DK; Sharma, R; Badgoti, RS; Rathore, KS; Parewa, V 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

The important role of C7H7Cl

Computed Properties of C7H7Cl. About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Zhang, ZM; Xu, YT; Shao, LX or concate me.

Recently I am researching about H BOND ARYLATION; CROSS-COUPLING REACTIONS; CARBENE-PALLADIUM(II)-1-METHYLIMIDAZOLE COMPLEX; SUZUKI-MIYAURA; ALPHA-ARYLATION; IM=1-METHYLIMIDAZOLE COMPLEXES; EFFICIENT CATALYSTS; NHC-PD(II)-IM NHC; PRIMARY AMINES; CARBENE, Saw an article supported by the . Computed Properties of C7H7Cl. Published in ELSEVIER SCIENCE SA in LAUSANNE ,Authors: Zhang, ZM; Xu, YT; Shao, LX. The CAS is 95-49-8. Through research, I have a further understanding and discovery of 1-Chloro-2-methylbenzene

Three new N-heterocyclic carbene (NHC)-Pd(II) complexes using 5-phenyloxazole as the ancillary ligand have been obtained in moderate to good yields by a one-pot reaction of the corresponding imidazolium salts, palladium chloride and 5-phenyloxazole under mild conditions. Initial studies showed that one of the complexes is an efficient catalyst for the Buchwald-Hartwig amination of aryl chlorides with various secondary and primary amines under the varied catalyst loading of 0.01-0.05 mol%, thus it will enrich the chemistry of NHCs and give an alternative catalyst for the coupling of challenging while cost-low aryl chlorides. (c) 2021 Elsevier B.V. All rights reserved.

Computed Properties of C7H7Cl. About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Zhang, ZM; Xu, YT; Shao, LX 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

Our Top Choice Compound:1-Chloro-2-methylbenzene

About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Sardarian, AR; Kazemnejadi, M; Esmaeilpour, M or concate me.. Safety of 1-Chloro-2-methylbenzene

An article Bis-salophen palladium complex immobilized on Fe3O4@SiO2 nanoparticles as a highly active and durable phosphine-free catalyst for Heck and copper-free Sonogashira coupling reactions WOS:000460780300033 published article about SCHIFF-BASE COMPLEX; SUZUKI-MIYAURA; MAGNETIC NANOPARTICLES; SUPPORTED-PALLADIUM; HETEROGENEOUS CATALYST; FE3O4 NANOPARTICLES; EFFICIENT CATALYST; MIZOROKI-HECK; 5-SUBSTITUTED 1H-TETRAZOLES; RECOVERABLE CATALYSTS in [Sardarian, Ali Reza; Kazemnejadi, Milad; Esmaeilpour, Mohsen] Shiraz Univ, Dept Chem, Coll Sci, Shiraz 7194684795, Iran in 2019.0, Cited 72.0. The Name is 1-Chloro-2-methylbenzene. Through research, I have a further understanding and discovery of 95-49-8. Safety of 1-Chloro-2-methylbenzene

New Fe3O4@SiO2 core-shell superparamagnetic nanoparticles functionalized by a bis-salophen Schiff base Pd complex were synthesized and employed as an efficient magnetic nanocatalyst in the Heck and Sonogashira cross coupling reactions. The synthesized nanostructures were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), dynamic light scattering (DLS), energy dispersive X-ray analysis (EDX), X-ray photoelectron spectroscopy (XPS), elemental analysis (CHN), cyclic voltammetry (CV), Brunauer-Emmett-Teller analysis (BET), and UV-vis spectroscopy. The morphology and size of the nanoparticles were investigated by FE-SEM and TEM analyses. Furthermore, the magnetic properties of the catalyst were investigated by VSM analysis. The loading content and leaching amounts of palladium on the catalyst were measured by inductively coupled plasma (ICP) analysis. Also, the thermal behavior of this magnetic heterogeneous catalyst was studied using a TGA instrument. This heterogeneous catalytic system showed a good performance in the coupling of aryl halides with alkynes (Sonogashira reaction) as well as aryl halides with alkene derivatives (Heck reaction). High to excellent yields were achieved for these C-C coupling reactions. The catalyst can be simply separated from the reaction media by an external magnet and reused for eight consecutive runs without any significant loss of activity. Finally, the kinetics of the reactions were studied in this work.

About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Sardarian, AR; Kazemnejadi, M; Esmaeilpour, M or concate me.. Safety of 1-Chloro-2-methylbenzene

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

Get Up to Speed Quickly on Emerging Topics:1-Chloro-2-methylbenzene

About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Kuma, R; Kitano, T; Tsujiguchi, T; Tanaka, T or concate me.. Quality Control of 1-Chloro-2-methylbenzene

Quality Control of 1-Chloro-2-methylbenzene. In 2020.0 APPL CATAL A-GEN published article about RAY-ABSORPTION SPECTROSCOPY; V2O5/TIO2 CATALYSTS; OXIDE CATALYSTS; K-EDGE; REDUCTION; NO; 1,2-DICHLOROBENZENE; VANADIUM; TIO2; SCR in [Kuma, Ryoji; Tsujiguchi, Takuya] Nippon Shokubai Co Ltd, Catalysts & Green Energy Mat Res Dept, Aboshi Ku, 992-1 Aza Nishioki, Himeji, Hyogo 6711292, Japan; [Kitano, Tomoyuki] Nippon Shokubai Co Ltd, Anal Technol Ctr, 5-8 Nishi Otabi Cho, Suita, Osaka 5640034, Japan; [Tanaka, Tsunehiro] Kyoto Univ, Grad Sch Engn, Dept Mol Engn, Kyoto 6158510, Japan; [Tanaka, Tsunehiro] Kyoto Univ, ESICB, Kyoto 6158510, Japan in 2020.0, Cited 36.0. The Name is 1-Chloro-2-methylbenzene. Through research, I have a further understanding and discovery of 95-49-8.

V2O5/TiO2-SiO2-MoO3 (TSM) catalysts exhibit enhanced redox capabilities, but the role of each species in the mixed oxide support is not well understood. Herein, the physicochemical characteristics of molybdenum oxide in TSM were investigated using X-ray diffraction, X-ray photoelectron spectroscopy, and X-ray absorption fine structure spectroscopy, and the performance of V/TSM catalysts for the oxidative decomposition of o-chlorotoluene was examined. The V/TSM catalysts exhibited superior performances in this decomposition reaction at low temperatures. The molybdenum species were highly dispersed as Mo6+, replacing Ti4+ in the anatase TiO2 framework and forming a solid solution. The redox capability of the vanadium species in the catalyst was enhanced by electron transfer from the TSM support to vanadium, likely due to the coexistence of Mo6+ and Ti(4+ )in the TSM solid solution, which has a unique structure. These results are expected to contribute to enhancing the abatement of dioxins at low temperatures.

About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Kuma, R; Kitano, T; Tsujiguchi, T; Tanaka, T or concate me.. Quality Control of 1-Chloro-2-methylbenzene

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

You Should Know Something about C7H7Cl

About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Li, JP; Huang, CY; Wen, DH; Zheng, QS; Tu, B; Tu, T or concate me.. Formula: C7H7Cl

Formula: C7H7Cl. Authors Li, JP; Huang, CY; Wen, DH; Zheng, QS; Tu, B; Tu, T in AMER CHEMICAL SOC published article about in [Li, Jinpeng; Huang, Changyu; Wen, Daheng; Zheng, Qingshu; Tu, Bo; Tu, Tao] Fudan Univ, Dept Chem, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200438, Peoples R China; [Tu, Tao] Chinese Acad Sci, Shanghai Inst Organ Chem, State Key Lab Organometall Chem, Shanghai 200032, Peoples R China; [Tu, Tao] Zhengzhou Univ, Green Catalysis Ctr, Zhengzhou 450001, Peoples R China; [Tu, Tao] Zhengzhou Univ, Coll Chem, Zhengzhou 450001, Peoples R China in 2021, Cited 33. The Name is 1-Chloro-2-methylbenzene. Through research, I have a further understanding and discovery of 95-49-8

A nickel-catalyzed amination of aryl chlorides with diverse amides via C-N bond cleavage has been realized under mild conditions. A broad substrate scope with excellent functional group tolerance at a low catalyst loading makes the protocol powerful for synthesizing various aromatic amines. The aryl chlorides could selectively couple to the amino fragments rather than the carbonyl moieties of amides. Our protocol complements the conventional amination of aryl chlorides and expands the usage of inactive amides.

About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Li, JP; Huang, CY; Wen, DH; Zheng, QS; Tu, B; Tu, T or concate me.. 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

Chemical Properties and Facts of C7H7Cl

About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Das, S; Murugesan, K; Rodriguez, GJV; Kaur, J; Barham, JP; Savateev, A; Antonietti, M; Konig, B or concate me.. HPLC of Formula: C7H7Cl

An article Photocatalytic (Het)arylation of C(sp(3))-H Bonds with Carbon Nitride WOS:000618540300047 published article about C-H BONDS; LIGHT PHOTOREDOX CATALYSIS; HYDROGEN-PRODUCTION; FUNCTIONALIZATION; ARYLATION; PHOTOCHEMISTRY; ALKYLATION; CO2 in [Das, Saikat; Murugesan, Kathiravan; Rodriguez, Gonzalo J. Villegas; Kaur, Jaspreet; Barham, Joshua P.; Koenig, Burkhard] Univ Regensburg, Fak Chem & Pharm, D-93040 Regensburg, Germany; [Savateev, Aleksandr; Antonietti, Markus] Max Planck Inst Colloids & Interfaces, Dept Colloid Chem, D-14424 Potsdam, Germany in 2021.0, Cited 74.0. HPLC of Formula: C7H7Cl. The Name is 1-Chloro-2-methylbenzene. Through research, I have a further understanding and discovery of 95-49-8

Graphitic carbon nitride materials have attracted significant interest in recent years and found applications in diverse light-to-energy conversions such as artificial photosynthesis, CO2 reduction, or degradation of organic pollutants. However, their utilization in synthetic photocatalysis, especially in the direct functionalization of C(sp(3))-H bonds, remains underexplored. Herein, we report mesoporous graphitic carbon nitride (mpg-CN as a heterogeneous organic semiconductor photocatalyst for direct arylation of C(sp(3))-H bonds in combination with nickel catalysis. Our protocol has a broad synthetic scope (>70 examples including late-stage functionalization of drugs and agrochemicals), is operationally simple, and shows high chemo- and regioselectivities. Facile separation and recycling of the mpg-CN catalyst in combination with its low preparation cost, innate photochemical stability, and low toxicity are beneficial features overcoming typical shortcomings of homogeneous photocatalysis. Detailed mechanistic investigations and kinetic studies indicate that an unprecedented energy-transfer process (EnT) from the organic semiconductor to the nickel complex is operating.

About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Das, S; Murugesan, K; Rodriguez, GJV; Kaur, J; Barham, JP; Savateev, A; Antonietti, M; Konig, B or concate me.. HPLC 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

The important role of 95-49-8

About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Chauhan, S; Verma, P; Kandasamy, J; Srivastava, V or concate me.. Safety of 1-Chloro-2-methylbenzene

Authors Chauhan, S; Verma, P; Kandasamy, J; Srivastava, V in WILEY-V C H VERLAG GMBH published article about PRIVILEGED SCAFFOLD; MEDIATED SYNTHESIS; DERIVATIVES; HYDROPEROXIDE; TBHP; METHYLARENES; ACTIVATION; ENAMINES; TOLUENE; AGENTS in [Chauhan, Swati; Verma, Pratibha; Kandasamy, Jeyakumar; Srivastava, Vandana] Indian Inst Technol BHU, Dept Chem, Varanasi 221005, Uttar Pradesh, India in 2020.0, Cited 48.0. Safety 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

An efficient synthesis of 3-functionalized coumarins is demonstrated fromo-cresols and active methylene compounds under solvent-, metal- and catalyst-free conditions in the presence of 70 % aqueoustert-butyl hydrogen peroxide. The important features of this protocol are operational simplicity, mild reaction conditions and good to excellent yield of the products.

About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Chauhan, S; Verma, P; Kandasamy, J; Srivastava, V or concate me.. Safety of 1-Chloro-2-methylbenzene

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

Final Thoughts on Chemistry for 95-49-8

Category: chlorides-buliding-blocks. About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Mishra, V; Thomas, JM; Chinnappan, S; Thirupathi, N or concate me.

An article Homoleptic cis- and trans-palladium(II) bis(guanidinato) complexes derived from N-aryl-N ‘,N ”-di(pyridin-2-yl)- and N-aryl-N ‘,N ”-bis(6-methylpyridin-2-yl)guanidines: Catalysts for Heck-Mizoroki coupling reactions WOS:000468111000001 published article about EFFECTIVE CORE POTENTIALS; AB-INITIO; MOLECULAR CALCULATIONS; SOLUTION BEHAVIOR; COORDINATION CHEMISTRY; RECYCLABLE CATALYST; STRUCTURAL ASPECTS; HIGHLY EFFICIENT; IONIC LIQUID; PALLADIUM in [Mishra, Vishwesh; Thirupathi, Natesan] Univ Delhi, Dept Chem, Delhi 110007, India; [Thomas, Jisha Mary; Chinnappan, Sivasankar] Pondicherry Univ, Dept Chem, Catalysis & Energy Lab, Pondicherry 605014, India in 2019.0, Cited 55.0. The Name is 1-Chloro-2-methylbenzene. Through research, I have a further understanding and discovery of 95-49-8. Category: chlorides-buliding-blocks

N-Aryl-N’,N ‘-di(pyridin-2-yl)-and N-aryl-N’,N ”-bis(6-methylpyridin-2-yl) guanidines (1-4 and 5-7) were isolated in 75%-81% yields. Reactions of Pd(OAc)(2) with guanidines 2-7 carried out separately in toluene at 60 degrees C for 3 h afforded 8-13 respectively in 69%-80% yields. Compounds 1-13 were characterized by elemental analyses, HR-MS, IR and NMR (H-1 and C-13) spectroscopy. Molecular structures of guanidines 1, 4, 5 and 6 and those of 8-13 were determined by single crystal X-ray diffraction. The Pd(II) atom in 8-10 revealed trans geometry while that in 11-13 revealed cis geometry. DFT calculations were carried out on model compounds 9a (trans) and its hypothetical cis isomer, 9b and 12a (cis) and its hypothetical trans isomer 12b which indicated a very small energy difference between the 9a/9b pair (1.28 kcal/mol) whereas a large energy difference was observed between the 12a/12b pair (26.38 kcal/mol) in CH2Cl2. The catalytic utility of 9 in Heck-Mizoroki coupling reactions involving styrene and methyl acrylate and aryl bromides/aryl chlorides in the presence of NaOAc and excess of tetrabutylammonium bromide (TBAB) at 120 degrees C was explored. Both activated and de-activated aryl bromides and aryl chlorides were coupled with styrene and in addition, the aryl chlorides were coupled with methyl acrylate in the presence of 9 to afford the respective coupling products in 68% – > 99% yields. Neat reaction carried out with 9 and TBAB under the optimized condition released the colloidal Pd black as verified by EDAX, PXRD and SEM techniques thereby implying the heterogeneous nature of catalysis. (c) 2019 Elsevier B. V. All rights reserved.

Category: chlorides-buliding-blocks. About 1-Chloro-2-methylbenzene, If you have any questions, you can contact Mishra, V; Thomas, JM; Chinnappan, S; Thirupathi, N 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