Month: October 2021

An article Dichloromethane as a methylene synthon for regioselective linkage of diverse carboxylic acids: Direct access to methylene diesters under metal-free conditions WOS:000474501100009 published article about ONE-POT CONVERSION; ORGANIC POLLUTANTS; ALDEHYDES; ARYL; PHOTODEGRADATION; PHOTOREDUCTION; CATALYST; STRATEGY; FACILE; CH2CL2 in [Wang, Shuiliang; Fu, Zhengjiang; Huang, Zhicong; Jiang, Yongqing; Guo, Shengmei; Cai, Hu] Nanchang Univ, Coll Chem, Nanchang 330031, Jiangxi, Peoples R China; [Fu, Zhengjiang] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China in 2019.0, Cited 29.0. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7. COA of Formula: C7H5NO4

A metal-free cross coupling between common CH2Cl2 and carboxylic acids has been achieved with K2CO3 as the sole additive. This simple protocol is a convenient and cost-effective route to synthesize methylene diesters from a wide scope of carboxylic acids substrates with good functional group tolerance. Several gram-scale reactions have been performed to evaluate the effectiveness and practicality of this protocol. (C) 2019 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.

COA of Formula: C7H5NO4. About 4-Nitrobenzoic acid, If you have any questions, you can contact Wang, SL; Fu, ZJ; Huang, ZC; Jiang, YQ; Guo, SM; Cai, H or concate me.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

SDS of cas: 62-23-7. Han, YX; Chen, YL; Feng, J; Na, M; Liu, JJ; Ma, YX; Ma, SD; Chen, XG in [Han, Yangxia; Chen, Yonglei; Feng, Jie; Na, Min; Liu, Juanjuan; Ma, Yunxia; Ma, Sudai; Chen, Xingguo] Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China; [Han, Yangxia; Chen, Yonglei; Feng, Jie; Na, Min; Liu, Juanjuan; Ma, Yunxia; Ma, Sudai; Chen, Xingguo] Lanzhou Univ, Dept Chem, Lanzhou 730000, Peoples R China; [Chen, Xingguo] Key Lab Nonferrous Met Chem & Resources Utilizat, Lanzhou 730000, Peoples R China published Investigation of nitrogen content effect in reducing agent to prepare wavelength controllable fluorescent silicon nanoparticles and its application in detection of 2-nitrophenol in 2019, Cited 48. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7.

Fluorescent silicon nanoparticles (SiNPs) displayed different emission wavelengths have been synthesized, but it has not been reported that the preparation of wavelength controllable SiNPs by adjusting the nitrogen content of reducing agents. In this paper, the wavelength-controlled fluorescent SiNPs were prepared by selecting the dopamine (DA) with nitrogen content between catechol and 2-aminophenol as the reducing agent and N-[3-(trimethoxysilyl) propyl]-ethylenediamine (DAMO) as the silicon source via one-step hydrothermal method. The emission wavelength of the prepared SiNPs was in direct proportion to the nitrogen content in the reducing agent. To the best of our knowledge, this is the first time for exploring the nitrogen content in reducing agents could affect the optical properties of SiNPs so far. In addition, the obtained SiNPs could be applied to determinate 2-nitrophenol (2-NP). Based on the combination action of inner filter effect (IFE) and static quenching effect (SQE) mechanism, a wide linear range was obtained from 0.1 to 500 mu M, and the limit of detection was 0.029 mu M for 2-NP, which was comparable to or even lower than some previous reports. This SiNPs probe was also successfully employed for sensing of 2-NP in industrial effluent with satisfactory results (98.6%-103.4%).

SDS of cas: 62-23-7. About 4-Nitrobenzoic acid, If you have any questions, you can contact Han, YX; Chen, YL; Feng, J; Na, M; Liu, JJ; Ma, YX; Ma, SD; Chen, XG or concate me.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

SDS of cas: 62-23-7. In 2019.0 CHEM ENG J published article about PERSONAL CARE PRODUCTS; GRAPHITIC CARBON NITRIDE; WATER TREATMENT PLANTS; ELECTRONIC-STRUCTURE; HYDROGEN EVOLUTION; PHARMACEUTICALS; PERFORMANCE; CHARGE; HETEROJUNCTION; G-C3N4 in [Jiang, Runren; Lu, Guanghua; Yan, Zhenhua; Wu, Donghai; Zhou, Ranran; Bao, Xuhui] Hohai Univ, Coll Environm, Minist Educ, Key Lab Integrated Regulat & Resources Dev Shallo, Nanjing 210098, Jiangsu, Peoples R China; [Lu, Guanghua] Tibet Agr & Anim Husb Univ, Water Conservancy Project, Linzhi 860000, Peoples R China; [Lu, Guanghua] Tibet Agr & Anim Husb Univ, Civil Engn Coll, Linzhi 860000, Peoples R China in 2019.0, Cited 50.0. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7.

The development of a novel Z-scheme system with a high separation efficiency of the charge carriers for remarkably enhanced photocatalytic activity is highly desirable. Herein, a carbon quantum dot-modified SnNb2O6/BiOCl (CQD-SNO/BOC) Z-scheme system, in which the CQDs acted as a bridge for the charge carriers, was successfully synthesized. As expected, the CQDs acted as a bridge for the charge carriers that could separate and accumulate electrons from SnNb2O6 and holes from BiOCl by promoting the transfer of the photoinduced charge carriers, which enabled the BiOCl holes to maintain their high oxidation capability. Additionally, the CQDs not only endowed the SNO/BOC Z-scheme system with a large specific surface area that provided a greater number of active sites but also noticeably improved its visible light absorption capacity. Therefore, the CQDSNO/BOC Z-scheme system showed an improved photocatalytic performance for the degradation of benzocaine (BC), which was over 20 times, 10 times and 2 times greater than those of BiOCl, SnNb2O6 and SNO/BOC Z-scheme systems, respectively. In addition, the effects of catalyst concentration, pH value, different anions, and humic acid (HA) concentration on the photodegradation of BC were investigated in depth. Simultaneously, a four-stage pathway for the degradation of BC was proposed based on the degradation products that were identified, and the accuracy of this pathway was further verified based on biotoxicity assessments and toxicity predictions of the products. According to the ESR spectra and active species trapping experiments, a mechanism for the CQD-SNO/BOC Z-scheme system was proposed, in which the CQD bridge accelerated charge transfer. Based on these results, the CQD-modified Z-scheme system could be an efficient and promising photocatalyst for the degradation of PPCPs in water.

SDS of cas: 62-23-7. About 4-Nitrobenzoic acid, If you have any questions, you can contact Jiang, RR; Lu, GH; Yan, ZH; Wu, DH; Zhou, RR; Bao, XH or concate me.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

Formula: C7H5NO4. In 2020.0 J BURN CARE RES published article about OUTCOMES in [Nizamani, Rabia; Heisler, Stephen; Chrisco, Lori; Jones, Samuel W.; Williams, Felicia N.] Univ N Carolina, Dept Surg, Sch Med, Chapel Hill, NC 27515 USA; [Nizamani, Rabia; Chrisco, Lori; Jones, Samuel W.; Williams, Felicia N.] North Carolina Jaycee Burn Ctr, Chapel Hill, NC USA; [Campbell, Harold] Mt Area Hlth Educ Ctr, Asheville, NC USA in 2020.0, Cited 14.0. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7.

In patients with diabetes mellitus (DM), amputation rates exceed 30% when lower extremity osteomyelitis is present. We sought to determine the rate of osteomyelitis and any subsequent amputation in our patients with DM and lower extremity burns. We performed a single-site, retrospective review at our burn center using the institutional burn center registry, linked to clinical and administrative data. Adults (>= 18 years old) with DM admitted from January 1, 2014 to December 31, 2018 for isolated lower extremity burns were eligible for inclusion. We evaluated demographics, burn characteristics, comorbidities, presence of radiologically confirmed osteomyelitis, length of stay (LOS), inpatient hospitalization costs, and amputation rate at 3 months and 12 months after injury. We identified 103 patients with DM and isolated lower extremity burns. Of these, 88 patients did not have osteomyelitis, while 15 patients had radiologically confirmed osteomyelitis within 3 months of the burn injury. Compared to patients without osteomyelitis, patients with osteomyelitis had significantly increased LOS (average LOS 22.7 days vs 12.1 days, P = .0042), inpatient hospitalization costs (average $135,345 vs $62,237, P = .0008), amputation rate within 3 months (66.7% vs 5.70%, P < .00001), and amputation rate within 12 months (66.7% vs 9.1%, P < .0001). The two groups were otherwise similar in demographics, burn injury characteristics, access to healthcare, and preexisting comorbidities. Patients with DM and lower extremity burns incurred increased LOS, higher inpatient hospitalization costs, and increased amputation rates if radiologically confirmed osteomyelitis was present within 3 months of the burn injury. Formula: C7H5NO4. About 4-Nitrobenzoic acid, If you have any questions, you can contact Nizamani, R; Heisler, S; Chrisco, L; Campbell, H; Jones, SW; Williams, FN or concate me.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

An article Synthesis of a human long-term oxymetholone metabolite WOS:000486110300004 published article about ANABOLIC-STEROIDS; STEREOSELECTIVE REDUCTION; URINARY METABOLITES; IDENTIFICATION; CHROMATOGRAPHY in [Kratena, Nicolas; Biedermann, Nina; Enev, Valentin S.; Gaertner, Peter] Vienna Univ Technol, Inst Appl Synthet Chem, Vienna, Austria; [Weil, Matthias] Vienna Univ Technol, Inst Chem Technol & Analyt, Vienna, Austria; [Stojanovic, Biljana; Goeschl, Lorenz; Gmeiner, Guenter] Seibersdorf Lab GmbH, Doping Control Lab, Seibersdorf, Austria in 2019, Cited 26. HPLC of Formula: C7H5NO4. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7

A long-term metabolite of the doping agent oxymetholone (OXM-M2, 17 beta-hydroxymethyl-2,17 alpha-methyl-18-norandrost-13-en-3-one) which has been identified by GC-MS/MS was synthesized from commercially available materials. Two efficient synthetic routes to access both C-17 epimers of tentative metabolites were developed. The identity and molecular configuration of the in vivo metabolite: 17 beta-hydroxymethyl-2 alpha,17 alpha-methyl-18-norandrost-13-en-3-one was confirmed by single crystal X-ray diffraction.

HPLC of Formula: C7H5NO4. About 4-Nitrobenzoic acid, If you have any questions, you can contact Kratena, N; Biedermann, N; Stojanovic, B; Goschl, L; Weil, M; Enev, VS; Gmeiner, G; Gartner, P or concate me.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

In 2019 J CHEM PHYS published article about CORRELATED MOLECULAR CALCULATIONS; INDEPENDENT CHEMICAL-SHIFTS; PI-ELECTRON DELOCALIZATION; GAUSSIAN-BASIS SETS; THEORETICAL CALCULATION; IONIZATION-POTENTIALS; OVERTONE SPECTROSCOPY; QUANTITATIVE CONCEPT; AB-INITIO; RESONANCE in [Dey, Soumyadeb; Manogaran, Dhivya; Manogaran, Sadasivam] Indian Inst Technol Kanpur, Dept Chem, Kanpur 208016, Uttar Pradesh, India; [Schaefer, Henry F., III] Univ Georgia, Ctr Computat Quantum Chem, Athens, GA 30602 USA in 2019, Cited 58. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7. Quality Control of 4-Nitrobenzoic acid

Benzene and 23 monosubstituted and 32 disubstituted derivatives of benzene were optimized for minimum energy structures using the B3LYP/cc-pVTZ method. The force fields of all the compounds were evaluated at their optimized geometries using the same method and basis set. In order to understand the effect of substitution(s) on the aromaticity of benzene, the aromaticity index based on interaction coordinates (AIBIC) values were computed for each and the change from the benzene value was obtained. This difference, the substituent effect based on interaction coordinates (SEBIC), quantifies the effect of the substituent on the aromaticity of benzene ring satisfactorily. It is found that the AIBIC of disubstituted benzenes (XC6H4Y) could be predicted well by adding the respective SEBIC(C6H5X) and SEBIC(C6H5Y) values to the AIBIC of benzene. The projected force fields of the meta and para fragments of the monosubstituted benzenes when chosen properly contain the information about the directing influence of the substituent in terms of the electron density based on interaction coordinates (EDBIC). When the EDBIC(para) > EDBIC(meta) relative to benzene, the substituent is ortho-para directing, while when the reverse is true, it is meta directing. The effect of conformational changes on aromaticity has been studied using aminophenols and dihydroxybenzenes. The additivity rule and the EDBIC concept work adequately well in that the methods can have several useful practical applications that will benefit various areas of science. A good understanding of the substituent effects and the ability to predict them should add a new dimension to the applications of AIBIC.

Quality Control of 4-Nitrobenzoic acid. About 4-Nitrobenzoic acid, If you have any questions, you can contact Dey, S; Manogaran, D; Manogaran, S; Schaefer, HF or concate me.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

Xu, JH; Wu, WB; Wu, J in [Xu, Jin-hui; Wu, Wen-bin; Wu, Jie] Natl Univ Singapore, Dept Chem, 3 Sci Dr 3, Singapore 117543, Singapore published Photoinduced Divergent Alkylation/Acylation of Pyridine N-Oxides with Alkynes under Anaerobic and Aerobic Conditions in 2019.0, Cited 47.0. SDS of cas: 62-23-7. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7.

Ortho-alkylated and ortho-acylated pyridines have been conveniently synthesized from pyridine N-oxides and alkynes under visible-light-mediation in a metal-free manner. The alkynes served as both alkylating and acylating agents via switching between anaerobic and aerobic conditions. The overall strategy accommodates a broad scope of substituted pyridine N-oxides and alkynes, with excellent regioselectivity in a number of cases.

About 4-Nitrobenzoic acid, If you have any questions, you can contact Xu, JH; Wu, WB; Wu, J or concate me.. SDS of cas: 62-23-7

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

An article Rh(i)-Catalyzed [3+2] annulation reactions of cyclopropenones with amides WOS:000468400200012 published article about SUBSTITUTED 3-METHYLENEISOINDOLIN-1-ONES; CARBONYLATION; CYCLIZATION; OXIMES; ACID in [Haito, Akira; Chatani, Naoto] Osaka Univ, Dept Appl Chem, Fac Engn, Suita, Osaka 5650871, Japan in 2019.0, Cited 28.0. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7. Formula: C7H5NO4

Rh(I)-Catalyzed [3+ 2] annulation reactions of cyclopropenones with amides are reported. The reaction provides a direct approach for producing highly substituted alpha, beta-unsaturated gamma-lactam derivatives. The presence of an N(sp(2)) atom in the N-alkyl group of the amide, such as the 2-pyridinylmethyl or 8-aminoquinonyl group, is essential for the success of the reaction.

Formula: C7H5NO4. About 4-Nitrobenzoic acid, If you have any questions, you can contact Haito, A; Chatani, N or concate me.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

Recently I am researching about CATALYZED OXIDATIVE ESTERIFICATION; N-ALKOXYAMIDES; CARBOXYLIC-ACIDS; CHEMOSELECTIVE ESTERIFICATION; EFFICIENT METHOD; REARRANGEMENT; HETEROCYCLES; AMIDATION; MOLECULES; ALDEHYDES, Saw an article supported by the Department of Science and TechnologyDepartment of Science & Technology (India) [EMR/2017/001336]; University of Kalyani. Published in TAYLOR & FRANCIS INC in PHILADELPHIA ,Authors: Ghosh, S; Banerjee, J; Ghosh, R; Chattopadhyay, SK. The CAS is 62-23-7. Through research, I have a further understanding and discovery of 4-Nitrobenzoic acid. Computed Properties of C7H5NO4

A metal-, oxidant-, and additive-free conversion of hydroxamates to esters have been achieved using molecular iodine as the reagent using a novel but not-so-explored heron-type rearrangement. The reaction proceeds with almost equal facility with substrates having either electron-donating or electron-withdrawing substituent. Similarly, alpha,ss-unsaturated, and sterically hindered ortho-substituted hydroxamates also undergo the desired transformation smoothly.

Computed Properties of C7H5NO4. About 4-Nitrobenzoic acid, If you have any questions, you can contact Ghosh, S; Banerjee, J; Ghosh, R; Chattopadhyay, SK or concate me.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

I found the field of Chemistry very interesting. Saw the article Disparate Catalytic Scaffolds for Atroposelective Cyclodehydration published in 2019. Quality Control of 4-Nitrobenzoic acid, Reprint Addresses Miller, SJ (corresponding author), Yale Univ, Dept Chem, New Haven, CT 06520 USA.; Toste, FD (corresponding author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.; Sigman, MS (corresponding author), Univ Utah, Dept Chem, 315 South 1400 East, Salt Lake City, UT 84112 USA.. The CAS is 62-23-7. Through research, I have a further understanding and discovery of 4-Nitrobenzoic acid

Catalysts that control stereochemistry are prized tools in chemical synthesis. When an effective catalyst is found, it is often explored for other types of reactions, frequently under the auspices of different mechanisms. As successes mount, a unique catalyst scaffold may become viewed as privileged. However, the mechanistic hallmarks of privileged catalysts are not easily enumerated or readily generalized to genuinely different classes of reactions or substrates. We explored the concept of scaffold uniqueness with two catalyst types for an unusual atropisomerselective cyclodehydration: (a) C-2-symmetric chiral phosphoric acids and (b) phosphothreonine-embedded, peptidic phosphoric acids. Pragmatically, both catalyst scaffolds proved fertile for enantioselective/atroposelective cyclodehydrations. Mechanistic studies revealed that the determinants of often equivalent and high atroposelectivity are different for the two catalyst classes. A data-descriptive classification of these asymmetric catalysts reveals an increasingly broad set of catalyst chemotypes, operating with different mechanistic features, that creates new opportunities for broad and complementary application of catalyst scaffolds in diverse substrate space.

About 4-Nitrobenzoic acid, If you have any questions, you can contact Kwon, Y; Li, JQ; Reid, JP; Crawford, JM; Jacob, R; Sigman, MS; Toste, FD; Miller, SJ or concate me.. Quality Control of 4-Nitrobenzoic acid

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem