Category: 253-52-1

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An Amine Group Transfer Reaction Driven by Aromaticity

A stereoselective domino inverse electron-demand Diels-Alder/amine group transfer reaction catalyzed by a bidentate Lewis acid provides 1-amino-1,2-dihydronaphthalenes, a core structure in many bioactive compounds. A concerted mechanism is proposed based on experimental studies as well as DFT computations demonstrating a new general reactivity scheme. The broad scope of the reaction was evaluated by variation of all three starting compounds, phthalazines, aldehydes, and amines. Scalability was demonstrated by a gram scale reaction without diminished yield.

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Phthalazine – Wikipedia,
Phthalazine | C8H6N23 – PubChem

253-52-1, Name is Phthalazine, belongs to phthalazine compound, is a common compound. Recommanded Product: PhthalazineIn an article, once mentioned the new application about 253-52-1.

Synthesis and in vitro evaluation of hydrazinyl phthalazines against malaria parasite, Plasmodium falciparum

In this report, we describe the synthesis of 1-(Phthalazin-4-yl)-hydrazine using bronsted acidic ionic liquids and demonstrate their ability to inhibit asexual stage development of human malaria parasite, Plasmodium falciparum. Through computational studies, we short-listed chemical scaffolds with potential binding affinity to an essential parasite protein, dihydroorotate dehydrogenase (DHODH). Further, these compounds were synthesized in the lab and tested against P. falciparum. Several compounds from our library showed inhibitory activity at low micro-molar concentrations with minimal cytotoxic effects. These results indicate the potential of hydralazine derivatives as reference scaffolds to develop novel antimalarials.

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Phthalazine – Wikipedia,
Phthalazine | C8H6N421 – PubChem

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The synthesis of 6,9-bis[(aminoalkyl)amino] substituted benzo[g]quinoxaline-, benzo[g]quinazoline- and benzo[g]phthalazine-5,10- diones via regiospecific displacements

The synthesis of 6,9-difluoro substituted benzo[g]quinoxaline-5,10-diones (3A), benzo[g]quinazoline-5,10-diones (3B) and benzo[g]phthalazine-5,10- diones (3C) have been accomplished. Treatment of 3A, 3B or 3C with diamines or N-(t-butoxycarbonyl)ethylenediamine led to the corresponding 6,9- bis[(aminoalkyl)amino]-substituted analogues related to 2A, 2B and 2C, respectively. The mono-substituted derivatives 4h and 4i could be isolated from displacements commencing from 3A. A competitive ring-opening of the pyrimidine ring of 2C occurred during the reaction with N,N- dimethylethylenediamine. Removal of the BOC-protecting group from 2Ac led to the hydrochloride salt 2Ab. A novel synthetic pathway to 6,9- dihydroxybenzo[g]phthalazine-5,10-dione (21a) was developed. Conversion of 21a to the ditosylate 21b was readily accomplished. Treatment of 21b with N,N-dimethylethylenediamine or N-(t-butoxycarbonyl)ethylenediamine led to 2Ca and 2Cc, respectively. Removal of the BOC-protecting group from 2Cc with trifluoroacetic acid followed by ion-exchange led to the hydrochloride salt 2Cb. Treatment of ditosylate 21b with N-(t-butoxycarbonyl)ethylenediamine also led to the mono-substituted analogue 25a along with a small amount of the O-S cleavage product 25b. Treatment of 25a with N,N- dimethylethylenediamine led to the unsymmetrically substituted derivative 25c which was converted into the trifluoroacetate salt 25d.

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Phthalazine – Wikipedia,
Phthalazine | C8H6N241 – PubChem

In heterogeneous catalysis, the catalyst is in a different phase from the reactants. HPLC of Formula: C8H6N2, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 253-52-1, name is Phthalazine. In an article£¬Which mentioned a new discovery about 253-52-1

New pyrrolo[2,1-a]phthalazine derivatives by one-pot three-component synthesis

The synthesis of the pyrrolo[2,1-a]phthalazine derivatives was performed by an efficient one-pot three-component reaction starting from phthalazine, 2-bromoacetophenones and nonsymmetrical and symmetrical acetylenic dipolarophiles in 1,2-epoxybutane as both reaction medium and HBr scavenger. The structure of the compounds was assigned by IR and NMR spectroscopy. Georg Thieme Verlag Stuttgart New York.

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Phthalazine – Wikipedia,
Phthalazine | C8H6N136 – PubChem

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Photoredox-Mediated Minisci-type Alkylation of N-Heteroarenes with Alkanes with High Methylene Selectivity

We report a highly efficient and chemoselective Minisci-type alkylation reaction of N-heteroarenes with alkanes under the reagent control of a hypervalent iodine oxidant PFBI-OH. In addition to the high reactivity, PFBI-OH demonstrated a high steric sensitivity for H abstraction of alkanes. This reaction is selective for more sterically accessible secondary C-H bonds over weaker tertiary C-H bonds. High selectivity toward penultimate methylene groups was observed for a wide range of acyclic alkanes.

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Phthalazine – Wikipedia,
Phthalazine | C8H6N255 – PubChem

Application of 253-52-1, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.253-52-1, Name is Phthalazine, molecular formula is C8H6N2. In a Article£¬once mentioned of 253-52-1

Synthesis of aza-naphthindolizinedione derivatives

A series of aza-naphthindolizinedione derivatives, such as indolizinoquinolinedione derivatives, indolizinophthalazinedione derivatives and indolizinoquinoxalinedione derivatives were designed and synthesized. The synthetic pathway was also proposed.

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Reference£º
Phthalazine – Wikipedia,
Phthalazine | C8H6N401 – PubChem

Related Products of 253-52-1, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.253-52-1, Name is Phthalazine, molecular formula is C8H6N2. In a Article£¬once mentioned of 253-52-1

Radical intramolecular arylation of pyridinium salts: A straightforward entry to 7-hydroxypyrido[2,1-a]isoquinolinylium salts

The synthesis of 7-hydroxypyrido[2,1-a]isoquinolinylium salts can be achieved in moderate yields by intramolecular radical arylation of pyridinium salts obtained from substituted pyridines and o-bromophenacyl bromides. The synthesis of 7-hydroxypyrido[2,1-a]isoquinolinylium salts can be achieved in moderate yields by intramolecular radical arylation on pyridinium salts obtained from substituted pyridines and o-bromophenacyl bromides.

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Phthalazine – Wikipedia,
Phthalazine | C8H6N100 – PubChem

In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Application In Synthesis of Phthalazine, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 253-52-1, name is Phthalazine. In an article£¬Which mentioned a new discovery about 253-52-1

Silver nanoparticles: Therapeutical uses, toxicity, and safety issues

The promises of nanotechnology have been realized to deliver the greatest scientific and technological advances in several areas. The biocidal activity of Metal nanoparticles in general and silver nanoparticles (AgNPs) depends on several morphological and physicochemical characteristics of the particles. Many of the interactions of the AgNPs with the human body are still poorly understood; consequently, the most desirable characteristics for the AgNPs are not yet well established. Therefore, the development of nanoparticles with well-controlled morphological and physicochemical features for application in human body is still an active area of interdisciplinary research. Effects of the development of technology of nanostructured compounds seem to be so large and comprehensive that probably it will impact on all fields of science and technology. However, mechanisms of safety control in application, utilization, responsiveness, and disposal accumulation still need to be further studied in-depth to ensure that the advances provided by nanotechnology are real and liable to provide solid and consistent progress. This review aims to discuss AgNPs applied in biomedicine and as promising field for insertion and development of new compounds related to medical and pharmacy technology. The review also addresses drug delivery, toxicity issues, and the safety rules concerning biomedical applications of silver nanoparticles. 2014 Wiley Periodicals, Inc. and the American Pharmacists Association J Pharm Sci 103:1931-1944, 2014

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Phthalazine – Wikipedia,
Phthalazine | C8H6N132 – PubChem

253-52-1, Name is Phthalazine, belongs to phthalazine compound, is a common compound. Quality Control of PhthalazineIn an article, once mentioned the new application about 253-52-1.

Alkyl Carbazates for Electrochemical Deoxygenative Functionalization of Heteroarenes

The C?O bond cleavage for activation of alcohols is synthetically useful and practically challenging. This work describes carbazate as a new type of electrochemically activated alkylating agent derived from ubiquitous alcohols for direct functionalization of heteroarenes under mild electrolytic conditions. The simple undivided cell at low oxidative potentials with carbon/platinum electrode set-ups offers excellent substrate tolerance, affording a variety of primary, secondary and tertiary alkyl-decorated heterocycles in good chemical yields. Furthermore, the mechanism for this electrochemical deoxyalkylation reaction has been investigated.

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Phthalazine – Wikipedia,
Phthalazine | C8H6N159 – PubChem

Synthetic Route of 253-52-1, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.253-52-1, Name is Phthalazine, molecular formula is C8H6N2. In a article£¬once mentioned of 253-52-1

An experimental and theoretical study of molecular structure and vibrational spectra of 2-chloronicotinic acid by density functional theory and ab initio Hartree-Fock calculations

In this work, the Fourier transform Raman and Fourier transform infrared spectra of 2-chloronicotinic acid (2-CNA) are recorded in the solid phase. The molecular geometry, vibrational frequencies, infrared intensities and Raman scattering activities of 2-CNA in ground state have been calculated by using ab initio Hartree-Fock (HF) and density functional (B3LYP and B3PW91) methods with 6-31G(d) and 6-311G(d) basis sets level. On the basis of the comparison between calculated and experimental results and the comparison with related molecule, assignments of fundamental vibrational modes are examined. The optimized geometric parameters (bond lengths and bond angles) obtained by using HF show the best agreement with the experimental values of 2-CNA. Comparison of the observed fundamental vibrational frequencies of 2-CNA and calculated results by density functional (B3LYP and B3PW91) and Hartree-Fock methods indicates that B3LYP is superior to the scaled Hartree-Fock and B3PW91 approach for molecular vibrational problems.

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Reference£º
Phthalazine – Wikipedia,
Phthalazine | C8H6N221 – PubChem