Month: May 2021

Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. In an article, author is Ghorbani-Vaghei, Ramin, once mentioned the application of 81-48-1, Name is 1-Hydroxy-4-(p-tolylamino)anthracene-9,10-dione, molecular formula is C21H15NO3, molecular weight is 329.35, MDL number is MFCD00019148, category is phthalazine. Now introduce a scientific discovery about this category, Recommanded Product: 1-Hydroxy-4-(p-tolylamino)anthracene-9,10-dione.

The one-pot four-component synthesis of 1H-pyrazolo[1,2-b] phthalazine-5,10-diones and 1H-pyrazolo[1,2-a] pyridazine-5,8-diones was carried out from the reaction between various aldehydes, malononitrile, hydrazine hydrate and phthalic anhydride or maleic anhydride at 110 degrees C in solvent-free conditions using piperidinium benzene-1,3-disulfonate nanomagnetic ionic liquid (NMIL) as a novel and reusable catalyst. Some advantages of the presented procedure are a significant reduction in cost, effective catalysis and reusability of the catalyst. NMIL was thoroughly characterized using Fourier transform infrared spectroscopy, X-ray diffraction, scanning and transmission electron microscopies, thermogravimetry, derivative thermogravimetry, Brunauer-Emmett-Teller analysis, vibrating sample magnetometry and energy-dispersive X-ray spectroscopy. The technique is developed as a suitable and safe method for the synthesis of 1H-pyrazolo[1,2-b] phthalazine-5,10-diones and 1H-pyrazolo[1,2-a] pyridazine-5,8-diones making use of an efficient and reusable green catalyst.

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

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 2128-93-0, Name is 4-Benzoylbiphenyl, molecular formula is C19H14O. In an article, author is Wasfy, Ashraf Farouq,once mentioned of 2128-93-0, Application In Synthesis of 4-Benzoylbiphenyl.

Phthalazine derivatives attached to amino acid derivatives were synthesized with high yields. The reaction of phthalazine derivatives with different phthalyl and tosylamino acids such as glycine, alanine, phenylalanine, valine, serine, and threonine in the presence of N,N-dicyclo hexylcarbodiimide (DCC) as a dehydrating agent reagent yielded high yields of the afforded compounds. Phthalylamino acids derivatives were obtained by deprotection of phthalazine derivatives, with the latter heating with hydrazine hydrate. The chemical structures of all phthalazine derivatives were affirmed by elemental analysis and spectral data (IR, MS, (HNMR)-H-1, and C-13 NMR). Screening out and estimation of the synthesized derivatives for their cytotoxic and antioxidant activity were done, and most of them showed powerful activity in comparison with standard drugs.

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

Synthetic Route of 88-44-8, Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. 88-44-8, Name is 4-Aminotoluene-3-sulfonic acid, SMILES is O=S(C1=CC(C)=CC=C1N)(O)=O, belongs to phthalazine compound. In a article, author is Wu, Yan, introduce new discover of the category.

Two series of [1,2,4]triazolo[3,4-a]phthalazine and tetrazolo[5,1-a]phthalazine derivatives bearing substituted benzylpiperazine moieties have been synthesized and evaluated for their positive inotropic activity by measuring left atrium stroke volume on isolated rabbit heart preparations. The majority of the derivatives exhibited better in vitro activity than the existing drug, milrinone, and 6-((4-(4-methoxyphenyl)piperazin-1-yl)methyl)tetrazolo[5,1-a]phthalazine. 8m in particular was identified as the most potent with an increased stroke volume of 12.02 +/- 0.20% (milrinone: 2.46 +/- 0.07%) at a concentration of 3x105m. The chronotropic effects of the compounds that exhibited good potency were also evaluated.

Synthetic Route of 88-44-8, The reactant in an enzyme-catalyzed reaction is called a substrate. Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction.I hope my blog about 88-44-8 is helpful to your research.

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

Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics, Name: 1-(Trifluoromethyl)-4-vinylbenzene, 402-50-6, Name is 1-(Trifluoromethyl)-4-vinylbenzene, SMILES is FC(F)(F)C1=CC=C(C=C)C=C1, belongs to phthalazine compound. In a document, author is Duan, Lele, introduce the new discover.

Water oxidation catalysts are essential components of light-driven water splitting systems, which could convert water to H-2 driven by solar radiation (H2O + h nu -> 1/2O(2) + H-2). The oxidation of water (H2O -> 1/2O(2) + 2H(+) + 2e(-)) provides protons and electrons for the production of dihydrogen (2H(+) + 2e(-) -> H-2), a clean-burning and high-capacity energy carrier. One of the obstacles now is the lack of effective and robust water oxidation catalysts. Aiming at developing robust molecular Ru-bda (H(2)bda = 2,2′-bipyridine-6,6′-dicarboxylic acid) water oxidation catalysts, we carried out density functional theory studies, correlated the robustness of catalysts against hydration with the highest occupied molecular orbital levels of a set of ligands, and successfully directed the synthesis of robust Ru-bda water oxidation catalysts. A series of mononuclear ruthenium complexes [Ru(bda)L-2] (L = pyridazine, pyrimidine, and phthalazine) were subsequently synthesized and shown to effectively catalyze Ce-IV-driven [Ce-IV = Ce(NH4)(2()NO3)(6)] water oxidation with high oxygen production rates up to 286 s(-1) and high turnover numbers up to 55,400.

The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 402-50-6 is helpful to your research. Name: 1-(Trifluoromethyl)-4-vinylbenzene.

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

Application of 1571-08-0, Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, 1571-08-0, Name is Methyl 4-formylbenzoate, SMILES is C1=C(C(OC)=O)C=CC(=C1)C=O, belongs to phthalazine compound. In a article, author is Jadhav, Amol Maruti, introduce new discover of the category.

An efficient one-pot synthesis of 1 H-indazolo[1,2-b]phthalazine-trione and spiro-triazolo[1,2-a]indazole-tetraone derivatives via three-component condensation reaction of phthalhydrazide or 4-phenylurazole, aldehydes or isatins and dimedone in the presence of a catalytic amount of silica-supported tungstic acid (STA), as a heterogeneous solid acid catalyst under solvent-free conditions is presented. This ecofriendly protocol offers several advantages such as a cost-effective procedure with excellent yields, short reaction time, simple workup, recovery and reusability of catalyst with broad scope of usable substrates. This has made the protocol sustainable and economic.

Application of 1571-08-0, Because enzymes can increase reaction rates by enormous factors and tend to be very specific, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about 1571-08-0.

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

In an article, author is Chang, Sue-Ming, once mentioned the application of 139-66-2, Name is Diphenylsulfane, molecular formula is C12H10S, molecular weight is 186.2728, MDL number is MFCD00003064, category is phthalazine. Now introduce a scientific discovery about this category, COA of Formula: https://www.ambeed.com/products/139-66-2.html.

Hybrid molecules are composed of two pharmacophores with different biological activities. Here, we conjugated phthalazine moieties (antiangiogenetic pharmacophore) and bis(hydroxymethyl)pyrrole moieties (DNA cross-linking agent) to form a series of bis(hydroxymethyl)pyrrolo[2,1-a]phthalazine hybrids. These conjugates were cytotoxic to a variety of cancer cell lines by inducing DNA damage, arresting cell cycle progression at the G2/M phase, triggering apoptosis, and inhibiting vascular endothelial growth factor receptor 2 (VEGFR-2) in endothelial cells. Among them, compound 29d encapsulated in a liposomal formulation (e.g., 29dL) significantly suppressed the growth of small-cell lung cancer cell (H526) xenografts in mice. Based on immunohistochemical staining, the tumor xenografts in mice treated with 29dL showed time-dependent decreases in the intensity of CD31, a marker of blood vessels, whereas the intensity of gamma-H2AX, a marker of DNA damage, increased. The present data revealed that the conjugation of antiangiogenic and DNA-damaging agents can generate potential hybrid agents for cancer treatment.

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

In an article, author is Ghorbani-Vaghei, Ramin, once mentioned the application of 369-34-6, Quality Control of 3,4-Difluoronitrobenzene, Name is 3,4-Difluoronitrobenzene, molecular formula is C6H3F2NO2, molecular weight is 159.09, MDL number is MFCD00007198, category is phthalazine. Now introduce a scientific discovery about this category.

A series of 1H-pyrazolo[1,2-b]phthalazine-5,10-diones were obtained from aldehydes, phthalhydrazide and malononitrile in good to excellent yields at 80-100 degrees C under solvent-free conditions by proceeding through a simple, mild and efficient procedure utilizing N, N, N’, N’-tetrabromobenzene-1,3-disulfonamide [TBBDA] and poly(N-bromo-N-ethylbenzene-1,3-disulfonamide) [PBBS] as catalysts.

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

In an article, author is Mei, Yanbo, once mentioned the application of 93-28-7, Safety of Eugenol Acetate, Name is Eugenol Acetate, molecular formula is C12H14O3, molecular weight is 206.24, MDL number is MFCD00026191, category is phthalazine. Now introduce a scientific discovery about this category.

A simple synthesis of sodium 2-phosphanaphthalene-3-olate (1) based on the extrusion of N-2 from phthalazine using Na[OCP] is reported. This heterocycle can be readily functionalized at the negatively charged oxygen center using a variety of electrophilic substrates. The coordination chemistry of both 1 and its neutral derivatives was explored, revealing their facile use as P-donor ligands for late-transition-metal complexes.

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

In an article, author is Reddy, M. Veeranaryana, once mentioned the application of 88-44-8, Name is 4-Aminotoluene-3-sulfonic acid, molecular formula is C7H9NO3S, molecular weight is 187.2163, MDL number is MFCD00007908, category is phthalazine. Now introduce a scientific discovery about this category, Recommanded Product: 4-Aminotoluene-3-sulfonic acid.

1H-Pyrazolo[1,2-6]phthalazine-5,10-dione carbonitriles and carboxylates possess a broad range of applications as active compounds in the pharmacological and biological fields. We developed an efficient and ecofriendly silica gel-supported tungstic acid (STA)-catalyzed one-pot synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione carbonitriles and carboxylates by a three-component reaction of an aldehyde, a malononitrile/ethyl cyanoacetate and a phthalhydrazide under solvent-free conditions. The major advantages of the present method are experimental simplicity, use of an inexpensive and ecofriendly reusable catalyst, good yields, and short reaction times. (C) 2014 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.

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

Chemistry, like all the natural sciences, begins with the direct observation of nature— in this case, of matter.81-16-3, Name is 2-Aminonaphthalene-1-sulfonic acid, SMILES is O=S(C1=C2C=CC=CC2=CC=C1N)(O)=O, belongs to phthalazine compound. In a document, author is Khalil, Nadia A., introduce the new discover, Category: phthalazines.

Novel 4-(4-bromophenyl)phthalazine derivatives connected via an alkyl spacer to amine or N-substituted piperazine were designed and synthesized as promising alpha-adrenoceptor antagonists. The structures of the phthalazine derivatives were established using elemental and spectral analyses. Twelve of the tested compounds displayed significant alpha-blocking activity. Molecular modeling studies were performed to rationalize the biological results. Among the tested compounds, 7j displayed the best-fitting score and the highest in vitro activity.

The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 81-16-3 is helpful to your research. Category: phthalazines.

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