Heterocyclic Building Blocks-phthalazine

Application In Synthesis of 4-Nitrobenzoic acid. Recently I am researching about METHOXY-N-METHYLAMIDES; MANNICH-TYPE REACTION; ASYMMETRIC ALDOL REACTION; ONE-POT SYNTHESIS; WEINREB AMIDES; CONVENIENT METHOD; EFFICIENT SYNTHESIS; CONVERSION; AMINOCARBONYLATION; ACYLOXYPHOSPHONIUM, Saw an article supported by the IISER Thiruvananthapuram; UGC, New-DelhiUniversity Grants Commission, India. Published in TAYLOR & FRANCIS INC in PHILADELPHIA ,Authors: Pilathottathil, F; Kumar, DV; Kaliyamoorthy, A. The CAS is 62-23-7. Through research, I have a further understanding and discovery of 4-Nitrobenzoic acid

A straightforward synthesis of acylating reagents such as Weinreb and MAP amides from aromatic, aliphatic carboxylic acids, and amino acids using PPh3/NBS combination is described. A chemo-selective modification of the carboxylic acid group into Weinreb amide in the presence of more reactive aldehydes and ketones is presented. All reactions were performed at ambient temperature under air using undried commercial grade solvent. Furthermore, the present methodology could be performed at a gram scale under inert-free reaction conditions. In addition, 7-azaindoline amide auxiliary (used for catalytic asymmetric aldol- and Mannich-type reactions), which behaves like Weinreb amide is also synthesized under similar reaction conditions.

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

SDS of cas: 62-23-7. In 2020 EUR J ORG CHEM published article about ACTIVATED PROTEIN-KINASE; IMIDAZOLE; DERIVATIVES; INHIBITORS; AFFINITY; ACCESS in [Golubev, Pavel; Guranova, Natalia; Krasavin, Mikhail] St Petersburg Stare Univ, Inst Chem, 26 Univ Sky Prospect, Peterhof 198504, Russia in 2020, Cited 28. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7.

In the present study, a new synthetic strategy towardsN-acylated glycinamides was developed by the use of 1,3,5-triazinanes as formaldimine surrogates in the Ugi reaction. The targeted products were obtained in a combinatorial, diversity-oriented fashion in good yields. Further modifications allowed us to adapt this procedure for the one-pot two-step syntheses of a local anesthetic druglidocaine and several unsymmetrically substituted diketopiperazines.

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Phthalazine – Wikipedia,
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An article Novel N-Acyl-1H-imidazole-1-carbothioamides: Design, Synthesis, Biological and Computational Studies WOS:000514482400001 published article about ANTIOXIDANT ACTIVITIES; ANTIMICROBIAL ACTIVITY; THIOUREA DERIVATIVES; OXIDATIVE STRESS; L. in [Aziz, Hamid; Saeed, Aamer] Quaid I Azam Univ, Dept Chem, Islamabad 45320, Pakistan; [Khan, Muhammad Aslam; Afridi, Shakeeb] Quaid I Azam Univ, Dept Biotechnol, Islamabad 45320, Pakistan; [Jabeen, Farukh] Laurentian Univ, Dept Biol, 935 Ramsey Lake Rd, Sudbury, ON P3E 2C6, Canada; [Jabeen, Farukh] Computat Sci Res & Dev Org, 1401,2485 Hurontraio St, Mississauga, ON L5A 2G6, Canada; [Ashfaq-ur-Rehman] Abdul Wali Khan Univ, Dept Biochem, Shankar Campus, Mardan 23200, Khyber Pukhtoon, Pakistan; [Ashfaq-ur-Rehman] Shanghai Jiao Tong Univ, Dept Bioinformat & Biostat, 800 Dongchuan Rd, Shanghai 200240, Peoples R China; [Hashim, Muhammad] Quaid I Azam Univ, Dept Biochem, Islamabad 45320, Pakistan in 2020, Cited 47. Formula: C7H5NO4. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7

The present study reports the convenient synthesis, spectroscopic characterization, bio-assays and computational evaluation of a novel series of N-acyl-1H-imidazole-1-carbothioamides. The screened derivatives displayed excellent antioxidant activity, moderate antibacterial and antifungal potential. The screened derivatives were found to be highly biocompatible against hRBCs. Molecular docking ascertained the mechanism and mode of action towards the molecular target delineating that ligands and complexes were stabilized at the active site by electrostatic and hydrophobic forces in accordance to the corresponding experimental results. Docking simulation provided additional information about the possibilities of inhibitory potential of the compounds against RNA. Computational evaluation predicted that N-acyl-1H-imidazole-1-carbothioamides 5c and 5g can serve as potential surrogates for hit to lead generation and design of novel antioxidant and antibacterial agents.

Formula: C7H5NO4. Welcome to talk about 62-23-7, If you have any questions, you can contact Aziz, H; Saeed, A; Khan, MA; Afridi, S; Jabeen, F; Ashfaq-ur-Rehman; Hashim, M or send Email.

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Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

An article Metal-Organic Framework Based on Heptanuclear Cu-O Clusters and Its Application as a Recyclable Photocatalyst for Stepwise Selective Catalysis WOS:000506719300028 published article about CARBONYL-COMPOUNDS; AEROBIC OXIDATION; ALCOHOLS; COMPLEXES; SEPARATION; CHEMISTRY; DESIGN; LIGAND; O-2 in [Zhou, Jie; Xu Huang-Fu; Huang, Yang-Ying; Cao, Chu-Ning; Chen, Xu-Dong] Nanjing Normal Univ, Jiangsu Key Lab Biofunct Mat, Sch Chem & Mat Sci, Nanjing 210023, Peoples R China; [Zhou, Jie; Xu Huang-Fu; Huang, Yang-Ying; Cao, Chu-Ning; Chen, Xu-Dong] Nanjing Normal Univ, Jiangsu Collaborat Innovat Ctr Biomed Funct Mat, Sch Chem & Mat Sci, Nanjing 210023, Peoples R China; [Han, Jie] Open Univ Hong Kong, Sch Sci & Technol, Kowloon, Hong Kong, Peoples R China; [Zhao, Xiao-Li] East China Normal Univ, Dept Chem, Shanghai Key Lab Green Chem & Chem Proc, Shanghai 200062, Peoples R China in 2020, Cited 66. Formula: C7H5NO4. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7

Visible-light driven photoreactions using metal-organic frameworks (MOFs) as catalysts are promising with regard to their environmental friendly features such as the use of renewable and sustainable energy of visible light and potential catalyst recyclability. To develop potential heterogeneous photocatalysts, a family of three copper(II) coordination polymers bearing different Cu-O assemblies have been synthesized with the ligand 4,4′-disulfo-[1,1′-biphenyl]-2,2′-dicarboxylate acid (H4DSDC), namely, {[Cu-7(DSDC)(2)(OH)(6)(H2O)(10)]center dot xH(2)O}(n) (1), {[Cu-4(DSDC)(4,4′-bpy)(2)(OH)(4)]center dot 2H(2)O}(n) (2), and (Cu-2(DSDC)(phen)(2)(H2O)(2)}(n) (3) (4,4′-bpy = 4,4′-bipyridine and phen = 1,10-phenanthroline). Complex 1 represents a metal-organic framework featuring a NbO type topology constructed from the infinite linkage of heptanuclear [Cu-7(mu(3)-OH)(6)(H2O)(10)](8+) clusters by deprotonated DSDC4- ligands, comprising one-dimensional hexagonal channels of a diameter around 11 angstrom that are filled with water molecules. The infinite waving {[Cu-2(OH)(2)](2+)}(n) ladderlike chains in complex 2 are bridged by DSDC4- and 4,4′-bpy ligands into a three-dimensional framework. A two-dimensional layered structure is formed in complex 3 due to the existence of terminal phenanthroline ligands. All of the coordination polymers 1-3 are able to catalyze the visible-light driven oxidation of alcohols at mild conditions using hydrogen peroxide as an oxidant, in which complex 1 demonstrates satisfactory efficiency. Significantly for this photoreaction catalyzed by 1, the extent of oxidation over aryl primary alcohols is fully controllable with time-resolved product selectivity, giving either corresponding aldehydes or carboxylate acids in good yields. It is also remarkable that the photocatalyst could be recovered almost quantitatively on completion of the catalytic cycle without any structure change, and could be recycled for catalytic use for at least five cycles with constant efficiency. This photocatalyst with time-resolved selectivity for different products may provide new insight into the design and development of novel catalytic systems.

Formula: C7H5NO4. Welcome to talk about 62-23-7, If you have any questions, you can contact Zhou, J; Xu, HF; Huang, YY; Cao, CN; Han, J; Zhao, XL; Chen, XD or send Email.

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

Formula: C7H5NO4. I found the field of Chemistry very interesting. Saw the article A highly enantioselective synthetic method towards the (2c)-adrenoceptor antagonist ORM-10921 published in 2019.0, Reprint Addresses Lei, XS; Lin, GQ (corresponding author), Fudan Univ, Inst Biomed Sci, 826 Zhangheng Rd, Shanghai 201203, Peoples R China.; Lei, XS; Lin, GQ (corresponding author), Fudan Univ, Sch Pharm, 826 Zhangheng Rd, Shanghai 201203, Peoples R China.; Lin, GQ (corresponding author), Shanghai Univ Tradit Chinese Med, Expt Ctr Sci & Technol, Shanghai 201203, Peoples R China.; Lin, GQ (corresponding author), Chinese Acad Sci, Shanghai Inst Organ Chem, Ctr Excellence Mol Synth, Key Lab Synthet Chem Nat Subst, 345 Lingling Rd, Shanghai 200032, Peoples R China.. The CAS is 62-23-7. Through research, I have a further understanding and discovery of 4-Nitrobenzoic acid.

The preparation of ORM-10921, a selective (2C)-adrenoceptor antagonist with promising anti-psychotic properties, was successfully achieved using asymmetric -alkylation of ,-unsaturated imide and Bischler-Napieralski cyclization/asymmetric reduction as the key steps. When the tetracyclic iminium 11S was used in the reduction, the diastereo-selectivity was poor, from which four stereoisomers of ORM-10921 were obtained, respectively. However, the diastereoselectivity could be significantly improved (with dr up to >97:3) when the tricyclic imine substrate 19S was applied in this reduction, suggesting an additional chelation from the side-chain methoxy group in the transition state. According to this protocol, ORM-10921 was accomplished in a highly enantioselective manner. In addition, two analogs 26Aa and 26Ba were prepared using this novel method, and the absolute configurations were unambiguously assigned by single crystal X-ray crystallography.

Formula: C7H5NO4. Welcome to talk about 62-23-7, If you have any questions, you can contact Ma, QN; Yang, XD; Lei, XS; Lin, GQ or send Email.

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

Formula: C7H5NO4. Sarmah, K; Mukhopadhyay, S; Maji, TK; Pratihar, S in [Sarmah, Kasturi; Mukhopadhyay, Subhamoy; Maji, Tarun K.; Pratihar, Sanjay] Tezpur Univ, Dept Chem Sci, Napaam 784028, Assam, India published Switchable Bifunctional Bistate Reusable ZnO-Cu for Selective Oxidation and Reduction Reaction in 2019.0, Cited 75.0. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7.

Herein we disclosed the utilization of copper loaded zinc oxide (ZnO-Cu) for its stimuli (O-2/light) responsive switchable performance between its reduced (S-1) and oxidized (S-2) state for two antagonistic reactions, namely oxidation of alkyl arenes/heteroarenes to aldehydes/ketones and reduction of nitro arenes/heteroarenes corresponding amines. The two states of the catalyst showed its switchable performance as highly active and poorly active catalyst for oxidation and reduction, and both reactions could be turned off and on by changing the stimuli (light and O-2/N-2). The switching efficiency between the states and their relative reactivity were found to be consistent under variety of reaction conditions and remain unaltered irrespective of oxidation-reduction (or vice versa) sequence and substrates used in the reaction. The photo catalysts (S-1 and S-2) demonstrated good catalytic activity, multiple reusability, broad substrate scope, and reasonable functional group tolerance for both the reactions and probed its quality performance in a large-scale setup. The system was used in an assisted tandem catalysis setup for the synthesis of benzyl amines utilizing both oxidation and reduction reaction by stimuli responsive switching between the states of the catalyst.

Welcome to talk about 62-23-7, If you have any questions, you can contact Sarmah, K; Mukhopadhyay, S; Maji, TK; Pratihar, S or send Email.. Formula: C7H5NO4

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

Meirelles, MA; Braga, CB; Ornelas, C; Pilli, RA in [Meirelles, Matheus A.; Braga, Carolyne B.; Ornelas, Catia; Pilli, Ronaldo A.] Univ Estadual Campinas, UNICAMP, Inst Chem, Dept Organ Chem, BR-13083970 Campinas, SP, Brazil published Synthesis of Nitrogen-Containing Goniothalamin Analogues with Higher Cytotoxic Activity and Selectivity against Cancer Cells in 2019.0, Cited 41.0. 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.

Two series of racemic goniothalamin analogues displaying nitrogen-containing groups were designed and synthesized. A total of 19 novel analogues were evaluated against a panel of four different cancer cell lines, along with the normal prostate cell line PNT2 to determine their selectivity. Among them, goniothalamin chloroacrylamide 13 e displayed the lowest IC50 values for both MCF-7 (0.5 mu m) and PC3 (0.3 mu m) cells, about 26-fold more potent than goniothalamin (1). Besides its higher potency, compound 13 e also displayed much higher selectivity than goniothalamin. In contrast, goniothalamin isobutyramide 13 c was the most potent analogue against Caco-2 cells (IC50=0.8 mu m), about 10-fold more potent and 17-fold more selective than 1. These results reveal the potential of compounds 13 c and 13 e for further in vivo studies, representing the first goniothalamin analogues with IC50 values in the low micromolar range and high selectivity against MCF-7, Caco-2, and PC3 cancer cell lines.

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Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

Formula: C7H5NO4. I found the field of Biochemistry & Molecular Biology; Chemistry very interesting. Saw the article Calculation of the Isobaric Heat Capacities of the Liquid and Solid Phase of Organic Compounds at and around 298.15 K Based on Their True Molecular Volume published in 2019, Reprint Addresses Naef, R (corresponding author), Univ Basel, Dept Chem, CH-4003 Basel, Switzerland.. The CAS is 62-23-7. Through research, I have a further understanding and discovery of 4-Nitrobenzoic acid.

A universally applicable method for the prediction of the isobaric heat capacities of the liquid and solid phase of molecules at 298.15 K is presented, derived from their true volume. The molecules’ true volume in A(3) is calculated on the basis of their geometry-optimized structure and the Van-der-Waals radii of their constituting atoms by means of a fast numerical algorithm. Good linear correlations of the true volume of a large number of compounds encompassing all classes and sizes with their experimental liquid and solid heat capacities over a large range have been found, although noticeably distorted by intermolecular hydrogen-bond effects. To account for these effects, the total amount of 1303 compounds with known experimental liquid heat capacities has been subdivided into three subsets consisting of 1102 hydroxy-group-free compounds, 164 monoalcohols/monoacids, and 36 polyalcohols/polyacids. The standard deviations for Cp(liq,298) were 20.7 J/mol/K for the OH-free compunds, 22.91 J/mol/K for the monoalcohols/monoacids and 16.03 J/mol/K for the polyols/polyacids. Analogously, 797 compounds with known solid heat capacities have been separated into a subset of 555 OH-free compounds, 123 monoalcohols/monoacids and 119 polyols/polyacids. The standard deviations for Cp(sol,298) were calculated to 23.14 J/mol/K for the first, 21.62 J/mol/K for the second, and 19.75 J/mol/K for the last subset. A discussion of structural and intermolecular effects influencing the heat capacities as well as of some special classes, in particular hydrocarbons, ionic liquids, siloxanes and metallocenes, has been given. In addition, the present method has successfully been extended to enable the prediction of the temperature dependence of the solid and liquid heat capacities in the range between 250 and 350 K.

Formula: C7H5NO4. Welcome to talk about 62-23-7, If you have any questions, you can contact Naef, R or send Email.

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

SDS of cas: 62-23-7. Khvalbota, L; Roy, D; Wahab, MF; Firooz, SK; Machynakova, A; Spanik, I; Armstrong, DW in [Khvalbota, Liudmyla; Roy, Daipayan; Wahab, M. Farooq; Firooz, Sepideh Khaki; Armstrong, Daniel W.] Univ Texas Arlington, Dept Chem & Biochem, Arlington, TX 76019 USA; [Khvalbota, Liudmyla; Machynakova, Andrea; Spanik, Ivan] Slovak Univ Technol Bratislava, Fac Chem & Food Technol, Inst Analyt Chem, Bratislava, Slovakia published Enhancing supercritical fluid chromatographic efficiency: Predicting effects of small aqueous additives in 2020, Cited 37. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7.

Supercritical fluid chromatography is becoming more prevalent, particularly in industry. This is due to the inexpensive, and more importantly, environmentally benign carbon dioxide that is used as the major component of the mobile phase. Water is minimally miscible with carbon dioxide at temperatures and pressures commonly used in SFC. However, the introduction of a polar alcohol modifier component increases the solubility of water in carbon dioxide. Previously, the addition of small amounts of water in the mobile phase was shown to provide significant gains in efficiency in chiral supercritical fluid chromatography, especially with polar stationary phases. In this work, we report the effect of the addition of small amounts of water on efficiency and retention factor with four different SFC stationary phases used for achiral analysis namely FructoShell-N (native cyclofructan-6), SilicaShell (bare silica), PoroShell 120 EC C18 (octadecyl silica) and Xselect C18 SB. This is the first reported use of FructoShell-N, a cyclofructan derivatized phase for SFC applications. We devised a predictive test to determine which analytes show an increase in efficiency using their known chemical constants (logK(ow), pK(a), PSA and H-sum). We also use discriminant analysis to elucidate the most important analyte parameters that contribute to water enhanced efficiency gains. (C) 2020 Elsevier B.V. All rights reserved.

Welcome to talk about 62-23-7, If you have any questions, you can contact Khvalbota, L; Roy, D; Wahab, MF; Firooz, SK; Machynakova, A; Spanik, I; Armstrong, DW or send Email.. SDS of cas: 62-23-7

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

In 2020.0 ORG LETT published article about RH-CATALYZED AMINATION; C-H AMINATION; ENANTIOSELECTIVE SYNTHESIS; STEREOSELECTIVE-SYNTHESIS; NITROGEN-HETEROCYCLES; ASYMMETRIC-SYNTHESIS; RING EXPANSION; PENARESIDIN; AZETIDINES; BONDS in [Betz, Kerry N.; Chiappini, Nicholas D.; Du Bois, J.] Stanford Univ, Dept Chem, 337 Campus Dr, Stanford, CA 94305 USA; [Chiappini, Nicholas D.] Princeton Univ, Dept Chem, Frick Chem Lab, Washington Rd, Princeton, NJ 08544 USA in 2020.0, Cited 46.0. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7. Recommanded Product: 62-23-7

The preparation of substituted azetidines and larger ring, nitrogen-containing saturated heterocycles is enabled through efficient and selective intermolecular sp(3)-C-H amination of alkyl bromide derivatives. A range of substrates are demonstrated to undergo C-H amination and subsequent sulfamate alkylation in good to excellent yield. N-Phenoxysulfonyl-protected products can be unmasked under neutral or mild basic conditions to yield the corresponding cyclic. secondary amines. The preparative convenience of this protocol is demonstrated through gram-scale and telescoped multistep procedures. Application of this technology is highlighted in a nine-step total synthesis of an unusual azetidine-containing natural product, penaresidin B.

Recommanded Product: 62-23-7. Welcome to talk about 62-23-7, If you have any questions, you can contact Betz, KN; Chiappini, ND; Du Bois, J or send Email.

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