Some scientific research about 21778-81-4

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Safety of 5-Methoxy-1H-indole-2-carbaldehyde. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 5-Methoxy-1H-indole-2-carbaldehyde, is researched, Molecular C10H9NO2, CAS is 21778-81-4, about Highly fluorescent 1,2-dihydropyrimido[1,6-α]indoles: an efficient metal-free synthesis and photophysical study. Author is Das, Tapas; Kayet, Anirban; Mishra, Ruchika; Singh, Vinod K..

A metal-free route to highly fluorescent 1,2-dihydropyrimido[1,6-α]indole derivatives I (R = H, OCH3, CH3, Br; Ar = C6H5, naphth-1-yl, furan-2-yl, etc.) has been developed via base catalyzed aldol followed by the Mannich reaction of indole-2-carboxaldehydes II with Et N-arylideneglycinates ArHC=NCH2COOEt at room temperature This transformation consists of the sequential formation of two new bonds to afford highly functionalized pyrimidoindole derivatives under mild reaction conditions.. Photophys. properties of the products have also been reported.

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Discovery of 21778-81-4

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Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Journal of Heterocyclic Chemistry called Oxidation by silver carbonate on celite. XV. Heterocyclic alcohols, Author is Fetizon, Marcel; Gomez-Parra, Federico; Louis, Jean M., which mentions a compound: 21778-81-4, SMILESS is O=CC(N1)=CC2=C1C=CC(OC)=C2, Molecular C10H9NO2, Reference of 5-Methoxy-1H-indole-2-carbaldehyde.

Oxidation of primary and secondary alcs. in heterocyclic series by AgCO3 absorbed on Celite gave aldehydes or ketones with excellent yields. Also oxidized were the alcs. containing the furan, pyrrole, thiophene, pyridine, or indole nucleus. The oxidation of codeine and of dihydrocodeine also was studied. Although the AgCO3 did not react with dihydrocodeine, the oxidation occurred using Ag2CO5-Celite. The yield for codeinone is better than 91%. Tetrahydrofurfuryl alc. and 2-hydroxymethyltetrahydropyran were slowly degraded to γ-butyrolactone and δ-valerolactone, resp.

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The Best Chemistry compound: 21778-81-4

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Tsotinis, Andrew; Afroudakis, Pandelis A.; Davidson, Kathryn; Prashar, Anjali; Sugden, David published the article 《Design, Synthesis, and Melatoninergic Activity of New Azido- and Isothiocyanato-Substituted Indoles》. Keywords: indole azido isothiocyanato preparation melatoninergic.They researched the compound: 5-Methoxy-1H-indole-2-carbaldehyde( cas:21778-81-4 ).Electric Literature of C10H9NO2. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:21778-81-4) here.

To develop irreversibly binding ligands for the melatonin receptor(s) as tools for tracing the primary melatonin binding site, novel melatoninergic azido- and isothiocyanato-substituted indoles were designed and synthesized. All active compounds were partial agonists or antagonists in the Xenopus melanophore assay, the most potent being 3-(2-azidoethyl)-5-methoxyindole and 3-(2-isothiocyanatoethyl)-5-methoxyindole.

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Some scientific research about 17739-45-6

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In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Novel 18F-Labeled Isonicotinamide-Based Radioligands for Positron Emission Tomography Imaging of Glycogen Synthase Kinase-3β, published in 2021-03-01, which mentions a compound: 17739-45-6, Name is 2-(2-Bromoethoxy)tetrahydro-2H-pyran, Molecular C7H13BrO2, Name: 2-(2-Bromoethoxy)tetrahydro-2H-pyran.

Glycogen synthase kinase-3β (GSK-3β), a cytoplasmic serine/threonine protein kinase, is involved in several human pathologies including Alzheimer’s disease, bipolar disorder, diabetes, and cancer. Positron emission tomog. (PET) imaging of GSK-3β could aid in investigating GSK-3β levels under normal and pathol. conditions. In this study, we designed and synthesized fluorinated PET radioligands starting with recently identified isonicotinamide derivatives that showed potent affinity to GSK-3β. After extensive in vitro inhibitory activity assays and analyzing U87 cell uptake, we identified [18F]10a-d as potential tracers with good specificity and high affinity. They were then subjected to further in vivo evaluation in rodent brain comprising PET imaging and metabolism studies. The radioligands [18F]10b-d penetrated the blood-brain barrier and accumulated in GSK-3β-rich regions, including amygdala, cerebellum, and hippocampus. Also, it could be specifically blocked using the corresponding standard compounds With these results, this work sets the basis for further development of novel 18F-labeled GSK-3β PET probes.

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Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Methyl 5-(hydroxymethyl)picolinate, is researched, Molecular C8H9NO3, CAS is 39977-42-9, about Simultaneous dehalogenation and hydrogenation reduction of halogen-heteroaromatic aldehydes.Reference of Methyl 5-(hydroxymethyl)picolinate.

Treatment of halo-heteroaromatic aldehydes with a catalytic amount of PdCl2 under atm. pressure of H2 in base medium (NaOAc) leads to the corresponding dehalogenated primary alcs. The reaction system was especially effective for heteroaromatic compounds bearing aldehyde groups and halides (Br or Cl).

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Ai, Yong; Wu, Dong-Ji; Yang, Meng-Juan; Wang, Pan; He, Wen-Hui; Liao, Wei-Qiang published an article about the compound: (R)-(-)-3-Fluoropyrrolidine Hydrochloride( cas:136725-55-8,SMILESS:Cl.F[C@@H]1CCNC1 ).Application of 136725-55-8. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:136725-55-8) through the article.

Through the strategy of F/H substitution, we precisely designed the highest-Tc (phase transition temperature) organic enantiomeric ferroelecs., (R)- and (S)-(N,N-dimethyl-3-fluoropyrrolidinium) iodide, of which the Tc reaches up to 470 K, far beyond those of other enantiomeric ferroelecs. and also the com. ferroelec. BaTiO3.

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Some scientific research about 21778-81-4

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The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 5-Methoxy-1H-indole-2-carbaldehyde, is researched, Molecular C10H9NO2, CAS is 21778-81-4, about Copper-Catalyzed Annulation of 2-Formylazoles with o-Aminoiodoarenes, the main research direction is formylpyrrole aminoiodoarene copper sparteine annulation; formylindole aminoiodoarene copper annulation sparteine; formylimidazole aminoiodoarene copper annulation sparteine; formylbenzimidazole aminoiodoarene copper annulation sparteine; formylpyrazole aminoiodoarene copper annulation sparteine; fused heterocyclic nitrogen containing preparation; annulation catalyst copper sparteine.Product Details of 21778-81-4.

In the presence of catalytic CuI and sparteine, 2-formylpyrroles can be annulated with o-aminoiodoarenes to give substituted pyrrolo[1,2-a]quinoxalines and related heterocycles. The reaction also works for annulation of 2-formylindoles, 2-formylimidazole, 2-formylbenzimidazole, and a 3-formylpyrazole.

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Synthetic Route of C10H9NO2. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 5-Methoxy-1H-indole-2-carbaldehyde, is researched, Molecular C10H9NO2, CAS is 21778-81-4, about Three-Step One-Pot Synthesis of 1,4-Dihydropyrazolo[4,3-b|indoles Using Copper Catalysis. Author is Liu, Hailong; Zhang, Lei; Zhao, Fei; Liu, Hong.

A convenient three-step one-pot copper-catalyzed method has been developed for the preparation of pyrazolo[4,3-b]indoles, new indole-based compounds with potential biol. activity. Treatment of various hydrazines, including alkyl hydrazines, with indole-2-carbaldehydes generated the corresponding products in moderate to good yields without protection of the indole N-1 moiety. In addition, LiOH was used as a base in the copper-catalyzed coupling reaction. Microwave heating was used to accelerate the iodination of indoles and the C-N bond formation.

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Derivation of elementary reaction about 17739-45-6

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COA of Formula: C7H13BrO2. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 2-(2-Bromoethoxy)tetrahydro-2H-pyran, is researched, Molecular C7H13BrO2, CAS is 17739-45-6, about Synthesis and catalytic performance of a soluble asymmetric zinc phthalocyanine. Author is Guo, Shanlei; Li, Dongni; Gao, Bo; Li, Yanhui; Zhang, Haotian; Li, Yanwei; Duan, Qian.

The soluble asym. phthalocyanine (Pc) (ZnPc-OH) was synthesized and used as a photosensitizer to degrade water pollutants. The catalytic ability of zinc Pc was proved by degrading Rhodamine B. ZnPc-OH, which has good solubility, can be used in photodynamic therapy.

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Extracurricular laboratory: Synthetic route of 21778-81-4

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Atwell, Graham J.; Milbank, Jared J. B.; Wilson, William R.; Hogg, Alison; Denny, William A. published the article 《5-Amino-1-(chloromethyl)-1,2-dihydro-3H-benz[e]indoles: Relationships between Structure and Cytotoxicity for Analogues Bearing Different DNA Minor Groove Binding Subunits》. Keywords: chloromethyl benzindole preparation cytotoxicity structure.They researched the compound: 5-Methoxy-1H-indole-2-carbaldehyde( cas:21778-81-4 ).Name: 5-Methoxy-1H-indole-2-carbaldehyde. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:21778-81-4) here.

A series of 5-amino-seco-CBI compounds, designed for use as effectors for prodrugs, were prepared to study structure-activity relationships for the cytotoxicity of side chain analogs. Compounds were prepared by coupling 1-(chloromethyl)-5-nitro-1,2-dihydro-3H-benz[e]indole to appropriate carboxylic acids, followed by nitro group reduction, or by coupling suitable 5-amino-protected indolines to α,β-unsaturated acids, followed by deblocking. These AT-specific DNA alkylating agents were evaluated for cytotoxicity in a series of tumor cell lines (AA8, UV4, EMT6, SKOV3). For those analogs bearing an indolecarbonyl side chain, the 5′-methoxy derivative was the most cytotoxic (IC50 1.3 nM in AA8 cells, 4 h exposure), comparable to that of the parent CBI-TMI (5′,6′,7′-trimethoxyindole) derivative (IC50 0.46 nM in the above assay). A subset of solubilized derivatives bearing O(CH2)2NMe2 substituents were about 10-fold less potent. For compounds containing an acryloyl linker in the side chain, the 4′-methoxycinnamoyl derivative proved the most cytotoxic (IC50 0.09 nM in the above assay). A number of these 5-amino-seco-CBI-TMI analogs (including the solubilized compounds) are of interest both as cytotoxins and as components of amine-based prodrugs designed for tumor-specific activation.

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Reference:
Pyridazine – Wikipedia,
Pyridazine | C4H4N2 – PubChem