Category: 62-23-7

Category: phthalazines. In 2020.0 GREEN CHEM published article about CHEMOSELECTIVE HYDROGENATION; 1 ATM; REDUCTION; CATALYST; NITROBENZENE; PERFORMANCE; ANILINE; BONDS; H-2 in [Sun, Shuting; Zhao, Ruixiang; Jv, Xinchun; Hu, Pan; Zhang, Qun; Wang, Bo] Hainan Univ, Minist Educ, Key Lab Adv Mat Trop Isl Resources, 58 Renmin AVE, Haikou 570228, Hainan, Peoples R China; [Wang, Bo] Shandong Agr Univ, Coll Sci & Engn, 7 Panhe AVE, Tai An 271017, Shandong, Peoples R China; [Du, Muyao] Shandong Univ Sci & Technol, Sch Chem & Environm Engn, 579 Qianwangang Rd, Qingdao 266590, Peoples R China in 2020.0, Cited 21.0. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7.

The hydrogenation of nitroarenes is one of the most important strategies for the preparation of anilines. However, it is still a great challenge to develop mild and efficient synthetic routes toward aniline synthesis, particularly those employing both non-precious metal catalysts and low-pressure H-2. Herein, we report a highly efficient protocol for the selective hydrogenation of nitroarenes in neutral H2O using H-2(1 atm) over a heterogeneous Zn(0) catalyst under mild conditions. The nitro groups of an array of nitroarenes can be converted into -NH(2)with up to 99% conversions and a selectivity of >99%, even when functionalized with easily reducible substituents, or in the presence of aromatic ketones or styrene. This study might open an avenue for the selective hydrogenation of nitroarenes over a zinc catalyst using 1 atm H-2.

About 4-Nitrobenzoic acid, If you have any questions, you can contact Sun, ST; Du, MY; Zhao, RX; Jv, XC; Hu, P; Zhang, Q; Wang, B or concate me.. Category: phthalazines

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

I found the field of Chemistry very interesting. Saw the article Synthesis of novel alpha-acyloxyamides using choline chloride-based deep eutectic solvent published in 2019. Formula: C7H5NO4, Reprint Addresses Yavari, I (corresponding author), Tarbiat Modares Univ, Dept Chem, POB 14115-175, Tehran, Iran.. The CAS is 62-23-7. Through research, I have a further understanding and discovery of 4-Nitrobenzoic acid

The Passerini three-component reaction between acenaphthylene-1,2-dione, alkyl isocyanides, and carboxylic acids, leading to the formation of alpha-acyloxyamides in common organic solvents (CH2Cl2, MeOH) and choline chloride-based deep eutectic solvent, is described. The reaction in the latter solvent proceeded faster compared to common organic solvents. The structure of a typical product was confirmed by X-ray crystallography. [GRAPHICS] .

Formula: C7H5NO4. About 4-Nitrobenzoic acid, If you have any questions, you can contact Yavari, I; Khajeh-Khezri, A; Ghorbanzadeh, M; Halvagar, MR or concate me.

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

Recently I am researching about SM-ND AGE; MG-SUITE; YOUNG; CONSTRAINTS; ORIGIN; CRUST; MOON; GEOCHEMISTRY; SYSTEMATICS; CHRONOLOGY, Saw an article supported by the U.S. Department of Energy by Lawrence Livermore National LaboratoryUnited States Department of Energy (DOE) [DE-AC5207NA27344, LLNL-JRNL-790599]; Laboratory Directed Research and Development grant [17-ERD-001]. Published in ELSEVIER in AMSTERDAM ,Authors: Sio, CK; Borg, LE; Cassata, WS. The CAS is 62-23-7. Through research, I have a further understanding and discovery of 4-Nitrobenzoic acid. Recommanded Product: 62-23-7

Ferroan anorthosite suite (FAS) rocks are widely interpreted to represent primordial lunar crust. Despite their importance in pinpointing the timing of lunar crust formation, robust chronological investigations for this rock type are scarce. Here, we report the Ar-Ar, Rb-Sr, and Sm-Nd isotopic systematics for the FAS troctolitic anorthosite 62237. The Ar-Ar isotopic system has been reset by a thermal event at 3710 +/- 48 Ma, and the Rb-Sr isotopic systematics has been disturbed such that a Rb-Sr isochron age cannot be determined. However, an internal isochron for the Sm-Nd isotopic system has yielded an age of 4350 +/- 73 Ma (MSWD = 2.0) with an initial epsilon Nd-143(CHUR) of -0.53 +/- 0.26. The mineral and whole-rock fractions of 62237 plot on the same internal isochron as FAS sample 60025. The combined datasets define an age of 4372 +/- 35 Ma (MSWD = 4.0) with an initial epsilon Nd-143(CHUR) of -0.17 +/- 0.22. Literature Sm-Nd data for FAS and Mg-suite whole-rocks also plot on the 60025-62237 isochron. The coherence of data from both FAS and Mg-suite rocks examined thus far suggests that both rock suites formed contemporaneously from identical, or nearly identical, sources. In addition, the concordance of FAS and Mg-suite ages suggests that primordial crust solidification either involved both magmatic suites, or that Mg-suite magmatism was contemporaneous with FAS magmatism within resolution of the Sm-Nd chronometer. The ages for FAS and Mg-suite also coincide with the formation ages of the mare basalt source regions and urKREEP. Ferroan anorthosite suite rocks and urKREEP are thought to represent primordial LMO solidification products, whereas Mg-suite and the mare basalt source regions are argued to represent mixtures of various LMO crystallization products that were formed during density-driven overturn of the LMO. The concordance of ages implies that the 4372 +/- 35 Ma Sm-Nd isochron records the age of mantle overturn, and that overturn occurred during, or shortly after, solidification of the LMO. (C) 2020 Elsevier B.V. All rights reserved.

Recommanded Product: 62-23-7. About 4-Nitrobenzoic acid, If you have any questions, you can contact Sio, CK; Borg, LE; Cassata, WS or concate me.

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

An article Synthesis of alpha-Quaternary Aldehydes via a Stereoselective Semi-Pinacol Rearrangement of Optically Active Epoxy Alcohols WOS:000480591800024 published article about CATALYTIC ENANTIOSELECTIVE CONSTRUCTION; UNPRECEDENTED STEREOCHEMICAL CONTROL; PRACTICAL ASYMMETRIC-SYNTHESIS; ALLYLIC ALKYLATION; NATURAL-PRODUCTS; ORGANOALUMINUM REAGENTS; CLAISEN REARRANGEMENT; STEREOGENIC CENTERS; SILYL ETHERS; THREO ALDOLS in [Hirama, Naomichi; Sakamoto, Ryu; Maruoka, Keiji] Kyoto Univ, Grad Sch Sci, Dept Chem, Sakyo Ku, Kyoto 6068502, Japan; [Maruoka, Keiji] Guangdong Univ Technol, Sch Chem Engn & Light Ind, Guangzhou, Guangdong, Peoples R China in 2019.0, Cited 71.0. Recommanded Product: 62-23-7. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7

This article describes a Lewis-acid-promoted semi-pinacol rearrangement of chiral epoxy alcohols to provide chiral beta-hydroxy aldehydes with a quaternary center at the alpha-position that are otherwise difficult to access in modern organic synthesis. The aldehydes thus obtained are highly useful synthetic intermediates, which is demonstrated by the synthesis of a serotonin antagonist.

About 4-Nitrobenzoic acid, If you have any questions, you can contact Hirama, N; Sakamoto, R; Maruoka, K or concate me.. Recommanded Product: 62-23-7

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

Safety of 4-Nitrobenzoic acid. In 2019.0 CHEM-EUR J published article about ENANTIOSELECTIVE ACYL TRANSFER; ASYMMETRIC ESTERIFICATION; PIVALIC ANHYDRIDE; FACILE SYNTHESIS; DIPHENYLACETIC ACID; CARBOXYLIC-ACIDS; BASICITY SCALE; ALCOHOLS; SECONDARY; DERIVATIVES in [Qu, Shen; Greenhalgh, Mark D.; Smith, Andrew D.] Univ St Andrews, Sch Chem, EaStCHEM, St Andrews KY16 9ST, Fife, Scotland in 2019.0, Cited 104.0. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7.

An operationally simple isothiourea-catalysed acylative kinetic resolution of unprotected 1,1 ‘-biaryl-2,2 ‘-diol derivatives has been developed to allow access to axially chiral compounds in highly enantioenriched form (s values up to 190). Investigation of the reaction scope and limitations provided three key observations: i) the diol motif of the substrate was essential for good conversion and high s values; ii) the use of an alpha,alpha-disubstituted mixed anhydride (2,2-diphenylacetic pivalic anhydride) was critical to minimize diacylation and give high selectivity; iii) the presence of substituents in the 3,3 ‘-positions of the diol hindered effective acylation. This final observation was exploited for the highly regioselective acylative kinetic resolution of unsymmetrical biaryl diol substrates bearing a single 3-substituent. Based on the key observations identified, acylation transition state models have been proposed to explain the atropselectivity of this kinetic resolution.

About 4-Nitrobenzoic acid, If you have any questions, you can contact Qu, S; Greenhalgh, MD; Smith, AD or concate me.. Safety of 4-Nitrobenzoic acid

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

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

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

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

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