Category: 99-04-7

I found the field of Chemistry very interesting. Saw the article Cu-Catalysed carboxylation of aryl boronic acids with CO2 published in 2019. SDS of cas: 99-04-7, Reprint Addresses Mo, FY (corresponding author), Peking Univ, Coll Engn, Dept Energy & Resources Engn, Beijing 100871, Peoples R China.; Mo, FY (corresponding author), Jiangsu Donghai Silicon Ind S&T Innovat Ctr, Donghai Cty 222300, Jiangsu, Peoples R China.. The CAS is 99-04-7. Through research, I have a further understanding and discovery of 3-Methylbenzoic acid

A copper/N-heterocyclic carbene (NHC) catalysed carboxylation of aryl boronic acids under one atmospheric pressure of CO2 has been developed. A wide range of aryl boronic acids was transformed into benzoic acid derivatives in moderate to high yields. The carboxylation method shows excellent functional group compatibility, and sensitive functional groups such as carbonyls, esters, and nitriles were tolerated. Mechanistic studies revealed the vital role of the base in promoting the transmetalation step for this copper-catalysed carboxylation.

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Reference:
Isothiazole – Wikipedia,
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Wang, ZH; Wang, XN; Wen, D; Long, XL in [Wang, Zhi-hao; Wang, Xin-ning; Wen, Di; Long, Xiang-li] East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai, Peoples R China published Isophthalic acid production catalyzed by Co(II) together with phosphotungstic acid loaded on carbon modified with tartaric acid in 2020.0, Cited 34.0. Product Details of 99-04-7. The Name is 3-Methylbenzoic acid. Through research, I have a further understanding and discovery of 99-04-7.

Background Isophthalic acid (IPA) is commercially produced using the Co-Mn-Br catalyst system, which suffers from the shortcomings of the discharge of CH3Br and corrosion of equipment. It is necessary to develop a technology to avoid the pollution caused by bromide. The production of IPA from the oxidation ofm-xylene (MX) by air is realized under catalysis with H3PW12O40(HPW) loaded on carbon and cobalt. Results Tartaric acid has been used to improve the catalytic activity of the HPW@C catalyst. Experiments indicate that the best modification condition is calcining the carbon at 450 degrees C for 4 h after being soaked in a 2.0 mol L(-1)tartaric acid solution for 10 h. Surface characterization reveals that the tartaric acid modification leads to an increase in the acid groups and a reduction in the basic groups on the carbon surface. Conclusions The MX conversion obtained using the HPW@C catalyst prepared from modified carbon is 6.77% over that obtained using the HPW@C catalyst prepared from the original carbon. The IPA generated using the former is 71.1% over that generated using the latter. The catalytic activity of the HPW@C catalyst relies on its surface chemical characteristics and physical properties. The surface chemistry plays a more important role than the physical properties. (c) 2020 Society of Chemical Industry

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Reference:
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Recommanded Product: 99-04-7. In 2021.0 RSC ADV published article about ESTERS; ACID; MECHANOCHEMISTRY; ULTRASOUND; CHALLENGES; MICROWAVE; MITSUNOBU; REAGENT; OIL in [Zheng, Lei; Sun, Chen; Xu, Wenhao; Su, Weike] Zhejiang Univ Technol, Key Lab Green Pharmaceut Technol & Related Equipm, Minist Educ, Coll Pharmaceut Sci, Hangzhou 310014, Peoples R China; [Xu, Wenhao; Su, Weike; Yu, Jingbo] Zhejiang Univ Technol, Natl Engn Res Ctr Proc Dev Act Pharmaceut Ingredi, Collaborat Innovat Ctr Yangtze River Delta Reg Gr, Hangzhou 310014, Peoples R China; [Dushkin, Alexandr V.; Polyakov, Nikolay] Inst Solid State Chem & Mechanochem, Novosibirsk, Russia in 2021.0, Cited 55.0. The Name is 3-Methylbenzoic acid. Through research, I have a further understanding and discovery of 99-04-7.

Herein, we describe two novel strategies for the synthesis of esters, as achieved under high-speed ball-milling (HSBM) conditions at room temperature. In the presence of I-2 and KH2PO2, the reactions afford the desired esterification derivatives in 45% to 91% yields within 20 min of grinding. Meanwhile, using KI and P(OEt)(3), esterification products can be obtained in 24% to 85% yields after 60 min of grinding. In addition, the I-2/KH2PO2 protocol was successfully extended to the late-stage diversification of natural products showing the robustness of this useful approach. Further application of this method in the synthesis of inositol nicotinate was also discussed.

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Reference:
Isothiazole – Wikipedia,
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Safety of 3-Methylbenzoic acid. Authors Kansiz, S; Qadir, AM; Dege, N; Faizi, SH in ELSEVIER published article about in [Kansiz, Sevgi] Samsun Univ, Dept Fundamental Sci, Fac Engn, TR-55420 Samsun, Turkey; [Qadir, Adnan M.] Salahaddin Univ, Coll Sci, Dept Chem, Erbil 44001, Iraq; [Dege, Necmi] Ondokuz Mayis Univ, Fac Arts & Sci, Dept Phys, TR-55139 Samsun, Turkey; [Faizi, Serajul Haque] BRA Bihar Univ, Langat Singh Coll, PG Dept Chem, Muzaffarpur 842001, Bihar, India in 2021, Cited 42. The Name is 3-Methylbenzoic acid. Through research, I have a further understanding and discovery of 99-04-7

In this study, two new copper (II) carboxylate complexes, [Cu(4-mba)(2) (tmeda)](1) and [Cu(3mba)(2)(H2O)(2)(tmeda)](2) (4-mbaH = 4-methylbenzoic acid, 3-mbaH = 3-methylbenzoic acid, tmeda = N,N,N’,N’-tetramethylethyleneamine) were synthesized. The structures and properties of the complexes were determined by X-ray single crystal diffraction method and FT-IR spectroscopy. While the crystal packing of the complex 1 is stabilized by C-H center dot center dot center dot O hydrogen bonds, in the complex 2, the molecules are connected to each other by C-H center dot center dot center dot O and O-H center dot center dot center dot O hydrogen bonds. The optimized structures were formed using density functional theory (DFT) at the B3LYP level within the 6-311G(d,p) and LAN2DZ basis sets. Their Hirshfeld surface analyses were performed for the detailed investigation of all the contacts involved in the crystal packing. 2D fingerprint plots and Hirshfeld surface analyses signify important interactions in the crystal packing [H center dot center dot center dot H (64.2%), C center dot center dot center dot H/H center dot center dot center dot C (21.1%) and O center dot center dot center dot H/H center dot center dot center dot O (14.7%) contacts for [Cu(4-mba) 2(tmeda)], while [Cu(3-mba)(2)(H2O)(2)(tmeda)] showed H center dot center dot center dot H (67.3%), C center dot center dot center dot H/H center dot center dot center dot C (21.8%) and O center dot center dot center dot H/H center dot center dot center dot O (10.9%) contacts]. (C) 2021 Elsevier B.V. All rights reserved.

Welcome to talk about 99-04-7, If you have any questions, you can contact Kansiz, S; Qadir, AM; Dege, N; Faizi, SH or send Email.. Safety of 3-Methylbenzoic acid

Reference:
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An article A tetra-cationic tetrapyridinoporphyrazinato Iron(II) grafted onto sulfonated SBA-15 as a novel heterogeneous catalyst for the aerobic oxidation of C(sp3)-H bonds in alkanes WOS:000639693200003 published article about FREE SELECTIVE OXIDATION; C-H BONDS; NONHEME IRON(IV)-OXO COMPLEX; FUNCTIONALIZED SBA-15; MESOPOROUS SILICA; BENZYLIC OXIDATION; DIOXYGEN ACTIVATION; IMMOBILIZED SBA-15; HYDROGEN-PEROXIDE; REUSABLE CATALYST in [Zahedi, Saeedeh; Safaei, Elham] Shiraz Univ, Coll Sci, Dept Chem, Shiraz 71454, Iran in 2021.0, Cited 131.0. Recommanded Product: 99-04-7. The Name is 3-Methylbenzoic acid. Through research, I have a further understanding and discovery of 99-04-7

An iron (II) tetramethylated tetrapyridinoporphyrazine (FeII(2,3-tmtppa)) grafted onto sulfonated SBA-15 (SBA15@n-Pr-SO3@Fetmtppa)) has been synthesized. The catalyst was characterized using X-ray diffraction, nitrogen adsorption?desorption measurements, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy, thermogravimetric analysis and scanning electron microscopy. XRD, XPS and ICP analyses confirmed the incorporation of iron (II) ion onto the surface of functionalized support. TGA and BET diagrams, FESEM and TEM images showed the grafting of (FeII(2,3-tmtppa)) on SBA-15 with mesoporous structure and ordered channels after immobilization process. This catalyst is able to perform C-H oxidation reaction of alkanes including toluene and ethylbenzene derivatives in the presence of molecular oxygen under the mild reaction in water. The hot filtration and reusability tests of the catalyst were studied which showed that the C-H activation reaction proceeds via heterogeneous pathway and catalyst is recoverable for at least 5 times.

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Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com

Computed Properties of C8H8O2. In 2020 CHEM COMMUN published article about CONJUGATE ADDITION; CARBON-DIOXIDE; HALIDES; BROMIDES; PALLADIUM; SYSTEM in [Wang, Yanwei; Jiang, Xiaomei; Wang, Baiquan] Nankai Univ, Coll Chem, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R China; [Wang, Baiquan] Chinese Acad Sci, Shanghai Inst Organ Chem, State Key Lab Organometall Chem, Shanghai 200032, Peoples R China in 2020, Cited 45. The Name is 3-Methylbenzoic acid. Through research, I have a further understanding and discovery of 99-04-7.

The transition-metal-catalyzed carboxylation of aryl and vinyl chlorides with CO2 is rarely studied, and has been achieved only with a Ni catalyst or combination of palladium and photoredox. In this work, the cobalt-catalyzed carboxylation of aryl and vinyl chlorides and bromides with CO2 has been developed. These transformations proceed under mild conditions and exhibit a broad substrate scope, affording the corresponding carboxylic acids in good to high yields.

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Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com

Safety of 3-Methylbenzoic acid. Authors 20220118 in ROYAL SOC CHEMISTRY published article about in [Yuan, Tao; Zheng, Meifang; Wang, Xinchen] Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Peoples R China; [Antonietti, Markus] Max Planck Inst Colloids & Interfaces, Dept Colloid Chem, Res Campus Golm, D-14424 Potsdam, Germany in 2021, Cited 61. The Name is 3-Methylbenzoic acid. Through research, I have a further understanding and discovery of 99-04-7

Photochemistry provides a sustainable pathway for organic transformations by inducing radical intermediates from substrates through electron transfer process. However, progress is limited by heterogeneous photocatalysts that are required to be efficient, stable, and inexpensive for long-term operation with easy recyclability and product separation. Here, we report that boron carbonitride (BCN) ceramics are such a system and can reduce organic halides, including (het)aryl and alkyl halides, with visible light irradiation. Cross-coupling of halides to afford new C-H, C-C, and C-S bonds can proceed at ambient reaction conditions. Hydrogen, (het)aryl, and sulfonyl groups were introduced into the arenes and heteroarenes at the designed positions by means of mesolytic C-X (carbon-halogen) bond cleavage in the absence of any metal-based catalysts or ligands. BCN can be used not only for half reactions, like reduction reactions with a sacrificial agent, but also redox reactions through oxidative and reductive interfacial electron transfer. The BCN photocatalyst shows tolerance to different substituents and conserved activity after five recycles. The apparent metal-free system opens new opportunities for a wide range of organic catalysts using light energy and sustainable materials, which are metal-free, inexpensive and stable.

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Reference:
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Recommanded Product: 3-Methylbenzoic acid. 20220118 in [Bai, Shao-Tao; Bheeter, Charles B.; Reek, Joost N. H.] Univ Amsterdam, Vant Hoff Inst Mol Sci HIMS, Supramol & Homogeneous Catalysis Grp, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands published Hydrogen Bond Directed ortho-Selective C-H Borylation of Secondary Aromatic Amides in 2019, Cited 76. The Name is 3-Methylbenzoic acid. Through research, I have a further understanding and discovery of 99-04-7.

Reported is an iridium catalyst for ortho-selective C-H borylation of challenging secondary aromatic amide substrates, and the regioselectivity is controlled by hydrogen-bond interactions. The BAIPy-Ir catalyst forms three hydrogen bonds with the substrate during the crucial activation step, and allows ortho-C-H borylation with high selectivity. The catalyst displays unprecedented ortho selectivities for a wide variety of substrates that differ in electronic and steric properties, and the catalyst tolerates various functional groups. The regioselective C-H borylation catalyst is readily accessible and converts substrates on gram scale with high selectivity and conversion.

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Reference:
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,Isothiazole – ScienceDirect.com

Recently I am researching about ASYMMETRIC-SYNTHESIS; RESISTANCE; INHIBITORS; ALKALOIDS, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [U1604105, 31901863]. Formula: C8H8O2. Published in TAYLOR & FRANCIS LTD in ABINGDON ,Authors: 20220118. The CAS is 99-04-7. Through research, I have a further understanding and discovery of 3-Methylbenzoic acid

Endeavor to discover biorational natural products-based insecticides, two series (27) of novel 9R/S-acyloxy derivatives of cinchonidine and cinchonine were prepared and assessed for their insecticidal activity against Mythimna separata in vivo by the leaf-dipping method at 1 mg/mL. Among all the compounds, especially derivatives 6l and 6o exhibited the best insecticidal activity with final mortality rates of 75.0% and 71.4%, respectively. Overall, a free 9-hydroxyl group is not a prerequisite for insecticidal activity and C9-substitution is well tolerated; the configuration of C8/9 position is important for insecticidal activity, and 9S-configuration is optimal; 6′-OCH3 moiety is not necessary, removal of it is also acceptable.

Welcome to talk about 99-04-7, If you have any questions, you can contact 20220118 or send Email.. Formula: C8H8O2

Reference:
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Computed Properties of C8H8O2. In 2020.0 CHEM COMMUN published article about C-H ALKYNYLATION; EXPEDIENT ACCESS; HYDROARYLATION; AMIDES; FUNCTIONALIZATION; HETEROCYCLES; INDOLES; BONDS; GAMMA in [Sun, Xin; Zhao, Wei; Li, Bi-Jie] Tsinghua Univ, Dept Chem, CBMS, Beijing 100084, Peoples R China in 2020.0, Cited 47.0. The Name is 3-Methylbenzoic acid. Through research, I have a further understanding and discovery of 99-04-7.

We report iridium-catalyzed C-C formation between benzamides and terminal alkynes. With the choice of a suitable ligand, a C-H alkynylation or alkenylation product could be obtained selectively. The directed C-H alkynylation proceeded without the need for an external oxidant, while the directed C-H alkenylation likely involves an unusual vinylidene mechanism. This divergent reactivity provides access to both alkynylation and alkenylation products from the same set of starting materials.

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Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com