Tag: M.W:100-200

In an article, author is Mousapour, Maryam, once mentioned the application of 371-42-6, Category: phthalazines, Name is 4-Fluorothiophenol, molecular formula is C6H5FS, molecular weight is 128.17, MDL number is MFCD00004846, category is phthalazines. Now introduce a scientific discovery about this category.

Efficient Synthesis of 2H-Indazolo[2,1-b]Phthalazine-Triones Using [PVPH]ClO4 as a Modified Polymeric Catalyst

In this work, poly(vinylpyrrolidonium) perchlorate {[PVPH]ClO4}, a newly reported modified polymeric catalyst, is used as an efficient and reusable solid acid catalyst for the promotion of the synthesis of 2H-indazolo[2,1-b]phthalazine-trione derivatives. All reactions were performed under mild conditions and the products were formed over short reaction times in excellent yields. It is important to note that this solid acid catalyst can be reused several times without any appreciable loss in its activity.

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

Chemistry, like all the natural sciences, Product Details of 92-92-2, begins with the direct observation of nature¡ª in this case, of matter.92-92-2, Name is [1,1′-Biphenyl]-4-carboxylic acid, SMILES is O=C(C1=CC=C(C2=CC=CC=C2)C=C1)O, belongs to phthalazines compound. In a document, author is Ramezani, Mahin, introduce the new discover.

Synthesis of new (trifluoromethyl)-1H-benzo[e][1,2,4]triazolo[1,2-a] [1,2,4]triazine-1,3(2H)-diones and (trifluoromethyl)benzo[5,6][1,2,4] triazino [1,2-b]phthalazine-8,13-diones

In this paper we investigated reactions of urazole and phthalazine with N-(aryl)-2,2,2-trifluoroacetimidoyl chloride derivatives. Results showed that when imidoyl chloride derivative has a fluorine atom at ortho position (3a-c), in two steps under a S(N)i mechanism and then SNAr reaction mechanism produce ay1-5-(trifluoromethyl)-1H-benzo [el [1,2,4]triazolo[1,2-a] [1,2,4]triazine-1,3(2H)-diones (4a-c) and 6-(trifluoromethyl)benzo[5,6][1,2,4]triazino[1,2-b]phthalazine-8,13-diones (4i,4j) in good to excellent yields. In the other imidoyl derivatives (3d-h and 3i,3j) under these conditions cyclization reaction does not occur and therefore produce 1-aryl-2,2,2-trifluorornethyl)-4-phenyl-1,2,4-triazolidine-3,5-diones (4d-h) and 2-(2,2,2-trifluoro-1-(arylimino)ethyl)-2,3-dihydrophthalazine-1,4-diones(4k,41) (non-cyclic products) in good to excellent yields. (C) 2016 Elsevier B.V. All rights reserved.

Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions. you can also check out more blogs about 92-92-2. Product Details of 92-92-2.

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

Related Products of 88-99-3, Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 88-99-3, Name is Pathalic acid, SMILES is O=C(O)C1=CC=CC=C1C(O)=O, belongs to phthalazines compound. In a article, author is Abdel-Rahman, Reda M., introduce new discover of the category.

1,2,4-Triazine Chemistry Part III: Synthetic Strategies to Functionalized Bridgehead Nitrogen Heteroannulated 1,2,4-Triazine Systems and their Regiospecific and Pharmacological Properties

The present review summarizes the synthetic strategies to functionalized bridgehead nitrogen heteroannulated 1,2,4-triazine systems as well as their regiospecific and pharmacological properties.

Related Products of 88-99-3, Each elementary reaction can be described in terms of its molecularity, the number of molecules that collide in that step. The slowest step in a reaction mechanism is the rate-determining step.you can also check out more blogs about 88-99-3.

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

Chemistry, like all the natural sciences, begins with the direct observation of nature¡ª in this case, of matter.92-92-2, Name is [1,1′-Biphenyl]-4-carboxylic acid, SMILES is O=C(C1=CC=C(C2=CC=CC=C2)C=C1)O, belongs to phthalazines compound. In a document, author is Mogilaiah, K., introduce the new discover, Safety of [1,1′-Biphenyl]-4-carboxylic acid.

Mild and efficient synthesis of 2,8-di(3-aryl[1,8]naphthyridin-2-yl) 1,2,3,4,6,7,8,9-octahydropyridazino [4,5-g]phthalazine-1,4,6,9-tetraones using non-traditional conditions and evaluation of their antibacterial activity

An efficient, practical and eco-friendly method for the synthesis of 2,8-di(3-aryl[1,8]naphthyridin-2-yl) 1,2,3,4,6,7,8,9-octahydropyridazino [4,5-g]phthalazine-1,4,6,9-tetraones 3 by the condensation of 3-aryl-2-hydrazino-1,8-naphthyridines 1 with pyromellitic dianhydride 2 in 2:1 molar ratio in the presence of catalytic amount of DMF under microwave irradiation/ in presence of catalytic amount of PTSA in the solid state at RT under grinding conditions is described. The structural assignments to compounds 3 are based on their elemental analyses and spectral (IR and H-1 NMR) data. The compounds 3 have been evaluated for their antibacterial 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 92-92-2 is helpful to your research. Safety of [1,1′-Biphenyl]-4-carboxylic acid.

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

In an article, author is Kiasat, Ali Reza, once mentioned the application of 1571-08-0, Name is Methyl 4-formylbenzoate, molecular formula is C9H8O3, molecular weight is 164.16, MDL number is MFCD00006950, category is phthalazines. Now introduce a scientific discovery about this category, Name: Methyl 4-formylbenzoate.

Experimental and theoretical study on one-pot, three-component route to 2H-indazolo[2,1-b]phthalazine-triones catalyzed by nano-alumina sulforic acid

A simple, efficient, and high yielding one-pot protocol for the synthesis of 2H-indazolo[2,1-b]phthalazine-trione derivatives has been developed by three-component coupling of phthalhydrazide, dimedone and some aromatic aldehydes in ecofriendly neat conditions promoted by nano-gamma-alumina sulforic acid. This protocol avoids the use of expensive catalysts, toxic solvents and chromatographic separation. Also the proposed protocol was extended to the linear beta-diketone (acetylaceton) instead of cyclic diketone (dimedone). The generality and functional tolerance of this convergent and environmentally benign method is demonstrated. The nature of each step of the suggested mechanism for this condensation reaction is also identified through Density Functional Theory (DFT) calculations using B3LYP/6-31G** level of theory. It is shown that the first step is charge controlled; whereas the second one is controlled by frontier molecular orbitals. The H-1 and C-13 chemical shift values together with the structural parameters of the title compound have been also computed and the scaled values have been compared with the corresponding experimental NMR and X-ray spectra. As a result, the calculated spectroscopic data and optimized geometry show a good agreement with the experimental results. (C) 2012 Elsevier B.V. All rights reserved.

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

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 495-69-2, Name is 2-Benzamidoacetic acid, formurla is C9H9NO3. In a document, author is Olmo, Francisco, introducing its new discovery. HPLC of Formula: C9H9NO3.

Synthesis and evaluation of in vitro and in vivo trypanocidal properties of a new imidazole-containing nitrophthalazine derivative

A series of new phthalazine derivatives (1-4) containing imidazole rings and functionalized with nitro groups in the benzene ring of the phthalazine moiety were prepared and identified on the basis of their MS, elemental analyses and bidimensional H-1 and C-13 NMR data, and their trypanocidal activity was tested. The 8-nitrosubstituted compound (3) was more active in vitro against Trypanosoma cruzi and less toxic against Vero cells than the reference drug benznidazole, and showed a SI value that was 47-fold better than the reference drug in amastigote forms. It also remarkably reduced the infectivity rate in Vero cells and decreased the reactivation of parasitemia in immunodeficient mice. Ultrastructural alterations found in epimastigotes treated with 3 confirmed extensive cytoplasm destruction in the parasites, whereas histopathological analysis of the hearts of mice infected and treated with 3 resulted in a decrease in cardiac damage. Biochemical markers showed that livers, hearts, and kidneys of treated mice were substantially unaffected by the administration of 3, despite the presence of the potentially toxic nitro group. It was also found that this compound selectively inhibited the antioxidant parasite enzyme Fe-superoxide dismutase (Fe-SOD) in comparison with human CuZn-SOD, and molecular modeling suggested interaction with the H-bonding system of the iron-based moiety as a feasible mechanism of action against the enzyme. (C) 2015 Elsevier Masson SAS. All rights reserved.

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

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 Ma, Long-Xu, once mentioned the application of 24324-17-2, Name is 9-Fluorenemethanol, molecular formula is C14H12O, molecular weight is 196.2445, MDL number is MFCD00001139, category is phthalazines. Now introduce a scientific discovery about this category, Name: 9-Fluorenemethanol.

Synthesis and positive inotropic evaluation of [1,2,4]triazolo [3,4-a]phthalazine and tetrazolo[5,1-a]phthalazine derivatives bearing substituted piperazine moieties

Four series of [1,2,4]triazolo[3,4-a]phthalazine and tetrazolo[5,1-a]phthalazine derivatives bearing substituted piperazine moieties were synthesized and evaluated for their positive inotropic activity by measuring the left atrium stroke volume in isolated rabbit-heart preparations. Several compounds were developed and showed favorable activities compared to the standard drug milrinone, with (4-([1,2,4]triazolo[3,4-a]phthalazin-6-yl) piperazin-1-yl)(p-tolyl) methanone (5g) being identified as the most potent with an increased stroke volume of 19.15 +/- 0.22% (milrinone: 2.46 +/- 0.07%) at a concentration of 3 x 10(-5) M. A preliminary study of mechanism of action revealed that 5g displayed its positive inotropic effect may be related to the PDE-cAMP-PKA signaling pathway. Compounds exhibiting inotropic effects were also evaluated in terms of the chronotropic effects. (c) 2014 Elsevier Ltd. All rights reserved.

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

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 Soheilizad, Mehdi, once mentioned the application of 371-42-6, Name is 4-Fluorothiophenol, molecular formula is C6H5FS, molecular weight is 128.17, MDL number is MFCD00004846, category is phthalazines. Now introduce a scientific discovery about this category, HPLC of Formula: C6H5FS.

One-pot and solvent-free synthesis of aliphatic and aromatic 1H-indazolo[2,1-b]phthalazinetriones catalyzed by boron sulfonic acid

An efficient and simple method for the synthesis of aliphatic and aromatic 1H-indazolo[2,1-b]phthalazinetrione derivatives through a one-pot three-component condensation of phthalhydrazide, aldehyde, and dimedone in the presence of boron sulfonic acid as a reusable and efficient catalyst under solvent-free conditions is described. The reusability of catalyst, good to excellent yields, short reaction times, and the avoidance of harsh reagents are the main advantages of this method. .

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

Synthetic Route of 623-25-6, Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. 623-25-6, Name is ¦Á,¦Á’-Dichloro-p-xylene, SMILES is ClCC1=CC=C(CCl)C=C1, belongs to phthalazines compound. In a article, author is Kidwai, Mazaahir, introduce new discover of the category.

A Rapid and an Efficient Route to the One-pot, Multicomponent Synthesis of 1H-Pyrazolo[1,2-b]phthalazine-5,10-dione Ring Systems

CAN is found to be an efficient catalyst for the synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives via one-pot coupling reaction of phthalhydrazide, aromatic aldehydes, and malononitrile or ethyl cyanoacetate in PEG as solvent. The major attributes of this synthetic protocol are the use of nontoxic, inexpensive, and readily available catalyst, mild conditions, easy work up, improved yields, and the PEG 400 as solvent that is environmentally benign as well as recyclable.

Synthetic Route of 623-25-6, One of the oldest and most widely used commercial enzyme inhibitors is aspirin, which selectively inhibits one of the enzymes involved in the synthesis of molecules that trigger inflammation. you can also check out more blogs about 623-25-6.

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

Chemistry, like all the natural sciences, Recommanded Product: 5509-65-9, begins with the direct observation of nature¡ª in this case, of matter.5509-65-9, Name is 2,6-Difluoroaniline, SMILES is C1=CC=C(C(=C1F)N)F, belongs to phthalazines compound. In a document, author is Tang, Ruizhi, introduce the new discover.

Aromatic azaheterocycle-cored luminogens with tunable physical properties via nitrogen atoms for sensing strong acids

A series of luminogens comprising one pyridine, 1,3-diazine, 1,4-diazine, 1,2-diazine and phthalazine moiety as the central core and two AIE-active tetraphenylethene units in lateral positions have been readily synthesized by Suzuki cross-coupling. They exhibited remarkably different photophysical and electrochemical properties, as well as solid packing and fine controllability via the number and position of the nitrogen atoms in the aromatic azaheterocycle core. Among them, the pyridine, 1,3-diazine and 1,4-diazine-cored luminogens displayed strong AIE activities, whereas the 1,2-diazine and phthalazine-cored luminogens exhibited almost no AIE effect. The intrinsic Lewis basicity of the as-prepared luminogens endowed them with the ability to fluorometrically detect acids with different pK(a) values. When protonated by a strong acid such as trifluoroacetic acid, the pyridine, 1,3-diazine and 1,4-diazine-cored luminogens displayed relatively weak AIE effects. In contrast, the 1,2-diazine and phthalazine-cored luminogens exhibited highly sensitive responses to strong acids within a precise pKa range by displaying turn-on fluorescence emissions in the low-energy region, which was probably owing to the synergetic effect of AIE and the constraint of the intersystem crossing effect upon protonation of the 1,2-diazine segment. They displayed reversible acidochromism in response to protonation and deprotonation in the solid state. Such unique properties of the as-prepared luminogens could be used for the selective discrimination of some organic acids, which is highly valuable in the study of biological metabolism.

Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions. you can also check out more blogs about 5509-65-9. Recommanded Product: 5509-65-9.

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