Month: April 2021

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 90-64-2, Name is 2-Hydroxy-2-phenylacetic acid, SMILES is C1=CC=CC=C1C(C(O)=O)O, in an article , author is Marvi, Omid, once mentioned of 90-64-2, Recommanded Product: 2-Hydroxy-2-phenylacetic acid.

Solvent-free Synthesis of Phthalazine-2(1H)-carboxamide Derivatives Using K-10 Clay Under Microwave Irradiation

Montmorillonite K-10 clay catalyzes the reaction of different anhydrides with semicarbazide under microwave irradiation. The corresponding carboxamide derivatives are obtained in high yield and short reaction times.

Interested yet? Read on for other articles about 90-64-2, you can contact me at any time and look forward to more communication. Recommanded Product: 2-Hydroxy-2-phenylacetic acid.

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 Saadati-Moshtaghin, Hamid Reza, once mentioned the application of 13001-40-6, Name is 4,4′-(1,4-Phenylenebis(ethene-2,1-diyl))dibenzonitrile, molecular formula is C24H16N2, molecular weight is 332.3973, MDL number is MFCD00369832, category is phthalazines. Now introduce a scientific discovery about this category, HPLC of Formula: C24H16N2.

Synthesis and characterization of magnetically recoverable 1-(copperferritesiloxypropyl)-3-methylimidazolium heteropolytungstate ionic liquid as a new nanocatalyst for the preparation of 1H-pyrazolo[1,2-b]phthalazine-5,10-diones

A novel, efficient and magnetically recoverable nanomaterial consisting of heteropoly acid supported on ionic liquid-modified copper ferrite nanoparticle was prepared and performed as a heterogeneous catalyst in the fast and convenient synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives under mild and solvent-free conditions. The synthesized nanomaterial was characterized with FT-IR, XRD, FESEM, TEM, ICP and VSM. Furthermore, the obtained nanomaterial displayed striking reusability in the titled catalytic reaction. Compared with the various previously reported catalysts, the newly synthesized nanocatalyst is found to be most efficient with regard to operation simplicity, reaction time, yield and ease of catalyst separation.

Do you like my blog? If you like, you can also browse other articles about this kind. Thanks for taking the time to read the blog about 13001-40-6, HPLC of Formula: C24H16N2.

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. 619-67-0, Name is 4-Hydrazinylbenzoic acid, molecular formula is C7H8N2O2. In an article, author is Szavuly, Miklos,once mentioned of 619-67-0, SDS of cas: 619-67-0.

Catalytic oxidation of alcohols and sulfides with hydrogen peroxide using isoindoline and phthalazine-based diiron complexes

A series of diiron(III) complexes of 1,3-bis(2′-arylimino)isoindoline, [(Fe(L)Cl)(2)O] and 1,4-di-(2′-aryl)aminophthalazine, [Fe-2(mu-OMe)(2)(H2L)Cl-4], including new structurally characterized ligands, 1,4-di-(4′-methyl-2′-thiazolyl)aminophthalazine and 1,4-di-(2′-benzthiazolyl)-aminophthalazine, have been characterized, and used as catalysts for the oxidation of para-substituted phenyl methyl sulfides and benzyl alcohols. Hammett correlations and kinetic isotope effect experiments support the involvement of electrophilic metal-based oxidants. In case of [(Fe(L-1,L-2)Cl)(2)O] catalysts, direct correlation has been found between the oxidative and catalase-like activity. (C) 2014 Elsevier B.V. All rights reserved.

If you are hungry for even more, make sure to check my other article about 619-67-0, SDS of cas: 619-67-0.

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

Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 620-14-4, Name is 3-Ethyltoluene, molecular formula is C9H12, belongs to phthalazines compound. In a document, author is Boulebd, Houssem, introduce the new discover, Category: phthalazines.

Thermodynamic and Kinetic Studies of the Radical Scavenging Behavior of Hydralazine and Dihydralazine: Theoretical Insights

Hydralazine (HZ) and dihydralazine (DHZ) are phthalazine derivatives substituted at position 1 (HZ) or positions 1 and 4 (DHZ) by a hydrazinyl substituent. These compounds are widely used for treating hypertension and heart failure, essentially acting as vasodilators on the arteries and arterioles. In this study, the antioxidant activity of HZ and DHZ in the gas phase and in physiological environments was investigated by thermodynamic and kinetic calculations. It was found that the HOO center dot radical scavenging activity of these compounds follows the formal hydrogen transfer (FHT) mechanism. The H abstraction of the N9-H bond plays a deciding role in the HOO center dot radical scavenging of HZ-1 and DHZ-I, whereas the HOO center dot radical scavenging activities of HZ-2 and DHZ-2 are defined by the dissociation of the N10-H and Nil-H bonds, respectively. The rate constants for the HOO center dot radical scavenging of the HZ and DHZ in the gas phase are in the range of 9.64 x 10(6) to 4.52 x 10(8) M-1 s(-1), whereas in aqueous solutions and the lipid medium they are in the range of 2.62 X 10(4) to 5.13 x 10(7) M-1 s(-1) and 5.75 x 10(4) to 6.66 x 10(6) M-1 s(-1), respectively. The HOO center dot radical scavenging of DHZ-1 and DHZ-2 is thus faster than that of the reference antioxidant compound Trolox in all the studied environments. Consistently, DHZs are not only vasodilators but also potent antioxidants.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 620-14-4. Category: phthalazines.

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

Chemistry, like all the natural sciences, Recommanded Product: 103-36-6, begins with the direct observation of nature¡ª in this case, of matter.103-36-6, Name is Ethyl cinnamate, SMILES is O=C(OCC)/C=C/C1=CC=CC=C1, belongs to phthalazines compound. In a document, author is Chang, Sue-Ming, introduce the new discover.

Design and Synthesis of 1,2-Bis(hydroxymethyl)pyrrolo[2,1-a]phthalazine Hybrids as Potent Anticancer Agents that Inhibit Angiogenesis and Induce DNA Interstrand Cross-links

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.

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 103-36-6. Recommanded Product: 103-36-6.

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

Let¡¯s face it, organic chemistry can seem difficult to learn. Especially from a beginner¡¯s point of view. Like 1149-26-4, Name is Z-L-Val-OH. In a document, author is Zhang, Qiu-Rong, introducing its new discovery. SDS of cas: 1149-26-4.

Synthesis and antimicrobial activities of novel 1,2,4-triazolo [3,4-a] phthalazine derivatives

A series of novel 1,2,4-triazolo [3,4-a] phthalazine derivatives were synthesized in five steps from a common precursor, phthalic anhydride. Most of synthesized phthalazine derivatives showed inhibitory activity against Staphylococcus aureus. One of phthalazine derivatives 5l showed inhibitory activity against all tested bacterial and fungal strains. (C) 2014 Published by Elsevier Ltd.

I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 1149-26-4 help many people in the next few years. SDS of cas: 1149-26-4.

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

Chemistry is an experimental science, COA of Formula: C12H14O3, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 93-28-7, Name is Eugenol Acetate, molecular formula is C12H14O3, belongs to phthalazines compound. In a document, author is Tong, Bihai.

Two unusual cyclometalated dimeric Ir(III) complexes: Synthesis, crystal structure and phosphorescent properties

Two cyclometalated dimeric from complexes, [{Ir(mu-Cl)(mu-ppa)(dmppa)}(2)] (dimer 1) and (dmppa)Ir(mu-Cl) (mu-ppa)Ir(ppa) (dimer 2) (dmppa = 1-(2.6-dimethylphenoxy)-4-phenylphthalazine, ppa =1-hydroxy1-4-phenylphthalazine), containing the bridging phthalazine ligands and bridging chlorides have been synthesized and fully characterized. Dimer 1 can form a noncovalently linked crystalline porous frameworks. The emission wavelength of dimer 1 in CH2Cl2 solution was 596 nm and the further hydrolysis of phenolic groups red shift the emission of dimer 2 to 634 nm. Two dimers have relatively high quantum efficiency, i.e., ca. 0.21 for dimer 1 and 0.3 for dimer 2 in CH2Cl2 solution. (C) 2011 Elsevier B.V. All rights reserved.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 93-28-7, in my other articles. COA of Formula: C12H14O3.

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, COA of Formula: C11H8I3N2NaO4, 737-31-5, Name is Sodium 3,5-diacetamido-2,4,6-triiodobenzoate, SMILES is O=C([O-])C1=C(I)C(NC(C)=O)=C(I)C(NC(C)=O)=C1I.[Na+], belongs to phthalazines compound. In a document, author is Abdel-Rahman, Reda M., introduce the new discover.

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.

A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 737-31-5. COA of Formula: C11H8I3N2NaO4.

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

Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. , Category: phthalazines, 3648-20-2, Name is Diundecyl phthalate, molecular formula is C30H50O4, belongs to phthalazines compound. In a document, author is Dong, Yong Ping, introduce the new discover.

Enhancing and inhibiting effects of benzenediols on chemiluminescence of a novel cyclometallated iridium(III) complex

A novel chemiluminescence (CL) system, including the cyclometallated iridium(III) complex {tris[1-(2,6-dimethylphenoxy)-4-(4-chlorophenyl)phthalazine]iridium}, potassium permanganate and oxalic acid, is proposed for the determination of benzenediols. This method is based on the fact that hydroquinone and catechol exhibited an inhibiting effect, while resorcinol exhibited an enhancing effect on CL intensity. The optimum conditions for CL emission were investigated. Under optimal conditions, the detection limits of hydroquinone, catechol and resorcinol were 6.4?x?10-8, 2.7?x?10-9 and 8.1?x?10-7?mol/L, respectively. The method has been successfully applied to the determination of benzenediols in different types of water sample. The luminophors of the CL systems were all identified as the metalligand charge-transfer (MLCT) excited state of the iridium complex. Copyright (c) 2011 John Wiley & Sons, Ltd.

A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 3648-20-2. Category: phthalazines.

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

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. Category: phthalazines, 103-36-6, Name is Ethyl cinnamate, SMILES is O=C(OCC)/C=C/C1=CC=CC=C1, in an article , author is Boulebd, Houssem, once mentioned of 103-36-6.

Thermodynamic and Kinetic Studies of the Radical Scavenging Behavior of Hydralazine and Dihydralazine: Theoretical Insights

Hydralazine (HZ) and dihydralazine (DHZ) are phthalazine derivatives substituted at position 1 (HZ) or positions 1 and 4 (DHZ) by a hydrazinyl substituent. These compounds are widely used for treating hypertension and heart failure, essentially acting as vasodilators on the arteries and arterioles. In this study, the antioxidant activity of HZ and DHZ in the gas phase and in physiological environments was investigated by thermodynamic and kinetic calculations. It was found that the HOO center dot radical scavenging activity of these compounds follows the formal hydrogen transfer (FHT) mechanism. The H abstraction of the N9-H bond plays a deciding role in the HOO center dot radical scavenging of HZ-1 and DHZ-I, whereas the HOO center dot radical scavenging activities of HZ-2 and DHZ-2 are defined by the dissociation of the N10-H and Nil-H bonds, respectively. The rate constants for the HOO center dot radical scavenging of the HZ and DHZ in the gas phase are in the range of 9.64 x 10(6) to 4.52 x 10(8) M-1 s(-1), whereas in aqueous solutions and the lipid medium they are in the range of 2.62 X 10(4) to 5.13 x 10(7) M-1 s(-1) and 5.75 x 10(4) to 6.66 x 10(6) M-1 s(-1), respectively. The HOO center dot radical scavenging of DHZ-1 and DHZ-2 is thus faster than that of the reference antioxidant compound Trolox in all the studied environments. Consistently, DHZs are not only vasodilators but also potent antioxidants.

But sometimes, even after several years of basic chemistry education, it is not easy to form a clear picture on how they govern reactivity! 103-36-6, you can contact me at any time and look forward to more communication. Category: phthalazines.

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