Category: 20028-53-9

Ashmore, Jason; Bishop, Roger; Craig, Donald C.; Scudder, Marcia L. published the article 《The effect of chlorine substitution on the inclusion properties of a diquinoline host molecule》. Keywords: chloro substituted diquinoline host mol inclusion compound supramol crystallog.They researched the compound: 2-Amino-5-chlorobenzaldehyde( cas:20028-53-9 ).Application of 20028-53-9. 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:20028-53-9) here.

The chloro-substituted diquinoline compounds 7 and 8 have been synthesized as part of our continuing search for new host mols. As intended, the latter forms lattice inclusion compounds with a range of mols., and here the X-ray structures of (8)4·(benzenes)5 and (8)·(toluene) are described. Host 8 exhibits entirely different inclusion behavior compared to its parent non-chlorinated analog 2. Edge-edge double C-H···N synthons, normally ubiquitous in inclusion structures formed by members of this diquinoline host family, vanish when 8 is used. Instead there is increased dependence on halogen-halogen and aryl-aryl interactions. Despite the similarity of the guests, the structures of the two inclusion compounds are very different. Crystal engineering anal. reveals, however, that the supramol. synthons present in the two cases are very similar.

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Tetrahydrofuran – Wikipedia,
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Formula: C7H6ClNO. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 2-Amino-5-chlorobenzaldehyde, is researched, Molecular C7H6ClNO, CAS is 20028-53-9, about Bifunctional mesoporous MCF materials as catalysts in the Friedlaender condensation. Author is Smuszkiewicz, A.; Perez-Mayoral, E.; Soriano, E.; Sobczak, I.; Ziolek, M.; Martin-Aranda, R. M.; Lopez-Peinado, A. J..

We report herein the Friedlaender reaction of 2-aminoaryl aldehydes and Et acetatoacetate affording the corresponding quinolines. The condensation selectively leads to quinolines with good to excellent yields under mild reaction conditions. The first step of the condensation is the Knoevenagel reaction between reagents as exptl. confirmed. In addition, in order to justify our results we carried out a computational study based on DFT calculations analyzing this first step of the condensation. In this sense, we propose a cooperative catalysis mechanism involving the amine functions and metallic centers both of them acting as activating agents of the reagents and, therefore, favoring the process.

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Quality Control of 2-Amino-5-chlorobenzaldehyde. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 2-Amino-5-chlorobenzaldehyde, is researched, Molecular C7H6ClNO, CAS is 20028-53-9, about I2-Catalyzed Aerobic Oxidative C(sp3)-H Amination/C-N Cleavage of Tertiary Amine: Synthesis of Quinazolines and Quinazolinones. Author is Yan, Yizhe; Xu, Ying; Niu, Bin; Xie, Huifang; Liu, Yanqi.

An iodine-catalyzed oxidative C(sp3)-H amination/C-N cleavage of tertiary amines conducted under an oxygen atm. has been developed and affords a route to quinazolines I [R1 = Ph, 4-MeC6H4, cyclopropyl, etc.; R2 = H, 6-Cl, 6-Br, etc.] and quinazolinones II [R3 = Ph, Bn, n-Bu, etc.] in good to excellent yields via a domino ring annulation. The method is metal-free, peroxide-free, and operationally simple to implement with a wide scope of substrates and represents a new avenue for multiple C-N bond formations.

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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 Design, synthesis and in vitro anticancer activity of novel quinoline and oxadiazole derivatives of ursolic acid, published in 2017-09-01, which mentions a compound: 20028-53-9, Name is 2-Amino-5-chlorobenzaldehyde, Molecular C7H6ClNO, Electric Literature of C7H6ClNO.

A series of new quinoline derivatives of ursolic acid were designed and synthesized in an attempt to develop potential anticancer agents. The structures of these compounds were identified by 1H NMR, 13C NMR, IR and ESI-MS spectra anal. The target compounds were evaluated for their in vitro cytotoxicity against three human cancer cell lines (MDA-MB-231, HeLa and SMMC-7721). From the results, compounds I [R = H, OMe, Cl, F] displayed significant antitumor activity against three cancer cell lines. Especially, compound I [R = OMe] was found to be the most potent derivative with IC50 values of 0.61 ± 0.07, 0.36 ± 0.05, 12.49 ± 0.08 μM against MDA-MB-231, HeLa and SMMC-7721 cells, resp., stronger than pos. control etoposide. Furthermore, the Annexin V-FITC/PI dual staining assay revealed that compound I [R = OMe] could significantly induce the apoptosis of MDA-MB-231 cells in a dose-dependent manner. The cell cycle anal. also indicated that compound I [R = OMe] could cause cell cycle arrest of MDA-MB-231 cells at G0/G1 phase.

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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 2-Amino-5-chlorobenzaldehyde(SMILESS: NC1=CC=C(Cl)C=C1C=O,cas:20028-53-9) is researched.Application of 3066-84-0. The article 《Copper(I)/ABNO-Catalyzed Aerobic Alcohol Oxidation: Alleviating Steric and Electronic Constraints of Cu/TEMPO Catalyst Systems》 in relation to this compound, is published in Journal of the American Chemical Society. Let’s take a look at the latest research on this compound (cas:20028-53-9).

Cu/TEMPO catalyst systems promote efficient aerobic oxidation of sterically unhindered primary alcs. and electronically activated substrates, but they show reduced reactivity with aliphatic and secondary alcs. Here, we report a catalyst system, consisting of (MeObpy)-CuI(OTf) and ABNO (MeObpy = 4,4′-dimethoxy-2,2′-bipyridine; ABNO = 9-azabicyclo[3.3.1]nonane N-oxyl), that mediates aerobic oxidation of all classes of alcs., including primary and secondary allylic, benzylic, and aliphatic alcs. with nearly equal efficiency. The catalyst exhibits broad functional group compatibility, and most reactions are complete within 1 h at room temperature using ambient air as the source of oxidant.

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Tetrahydrofuran – Wikipedia,
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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, Article, Chemical Communications (Cambridge, United Kingdom) called A Au(I)-catalyzed hydrogen bond-directed tandem strategy to synthesize indeno-chromen-4-one and indeno-quinolin-4-one derivatives, Author is Jiang, Chongguo; Xiong, Zhiling; Jin, Shengfei; Gao, Peng; Tang, Yingzhan; Wang, Yanshi; Du, Chuan; Wang, Xiaoyu; Liu, Yang; Lin, Bin; Liu, Yongxiang; Cheng, Maosheng, which mentions a compound: 20028-53-9, SMILESS is NC1=CC=C(Cl)C=C1C=O, Molecular C7H6ClNO, Recommanded Product: 2-Amino-5-chlorobenzaldehyde.

A gold-catalyzed hydrogen bond-directed tandem cyclization strategy to synthesize indeno-chromen-4-one and indeno-quinolin-4-one derivatives was developed. The hydrogen bond existing between the hydroxyl group (or the amide group) and the carbonyl group played an essential role in controlling the selectivity, which was confirmed by both exptl. and theor. evidence.

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Tetrahydrofuran – Wikipedia,
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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Identification of Inhibitors of Cholesterol Transport Proteins Through the Synthesis of a Diverse, Sterol-Inspired Compound Collection》. Authors are Whitmarsh-Everiss, Thomas; Olsen, Asger Hegelund; Laraia, Luca.The article about the compound:2-Amino-5-chlorobenzaldehydecas:20028-53-9,SMILESS:NC1=CC=C(Cl)C=C1C=O).Recommanded Product: 2-Amino-5-chlorobenzaldehyde. Through the article, more information about this compound (cas:20028-53-9) is conveyed.

Cholesterol transport proteins regulate a vast array of cellular processes including lipid metabolism, vesicular and non-vesicular trafficking, organelle contact sites, and autophagy. Despite their undoubted importance, the identification of selective modulators of this class of proteins has been challenging due to the structural similarities in the cholesterol-binding site. Herein we report a general strategy for the identification of selective inhibitors of cholesterol transport proteins via the synthesis of a diverse sterol-inspired compound collection. Fusion of a primary sterol fragment to an array of secondary privileged scaffolds led to the identification of potent and selective inhibitors of the cholesterol transport protein Aster-C, which displayed a surprising preference for the unnatural-sterol AB-ring stereochem. and new inhibitors of Aster-A. We propose that this strategy can and should be applied to any therapeutically relevant sterol-binding protein.

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Tetrahydrofuran – Wikipedia,
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Zhou, Zhenghong; Hu, Kangfei; Wang, Jiawei; Li, Zhibin; Zhang, Yan; Zha, Zhenggen; Wang, Zhiyong published the article 《Electrosynthesis of Quinazolines and Quinazolinones via an Anodic Direct Oxidation C(sp3)-H Amination/C-N Cleavage of Tertiary Amine in Aqueous Medium》. Keywords: quinazoline quinazolinone electrochem preparation green chem; tertiary amine carbonyl aniline anodic oxidation amination cleavage.They researched the compound: 2-Amino-5-chlorobenzaldehyde( cas:20028-53-9 ).Formula: C7H6ClNO. 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:20028-53-9) here.

An electrochem. synthesis for quinazolines and quinazolinones was developed via a C(sp3)-H amination/C-N cleavage by virtue of the anodic oxidation The reaction can be carried out in aqueous media under mild conditions to afford the desired products with high yields. The reaction mechanism was proposed after detailed investigation.

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Tetrahydrofuran – Wikipedia,
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Formula: C7H6ClNO. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 2-Amino-5-chlorobenzaldehyde, is researched, Molecular C7H6ClNO, CAS is 20028-53-9, about Synthesis and screening of (E)-3-(2-benzylidenehydrazinyl)-5,6-diphenyl-1,2,4-triazine analogs as novel dual inhibitors of α-amylase and α-glucosidase. Author is Shamim, Shahbaz; Khan, Khalid Mohammed; Ullah, Nisar; Chigurupati, Sridevi; Wadood, Abdul; Ur Rehman, Ashfaq; Ali, Muhammad; Salar, Uzma; Alhowail, Ahmad; Taha, Muhammad; Perveen, Shahnaz.

(E)-3-(2-Benzylidenehydrazinyl)-5,6-diphenyl-1,2,4-triazine analogs I (R = 4-ClC6H4, 2-Cl-5-O2NC6H3, furan-2-yl, etc.) were synthesized by multi-step reaction scheme and subjected to in vitro inhibitory screening against α-amylase and α-glucosidase enzymes. All compounds exhibited good to moderate inhibitory potential in terms of IC50 values ranging (IC50 = 13.02 +/- 0.04-46.90 +/- 0.05μM) and (IC50 = 13.09 +/- 0.08-46.44 +/- 0.24μM) in comparison to standard acarbose (IC50 = 12.94 +/- 0.27μM and 10.95 +/- 0.08μM), for α-amylase and α-glucosidase, resp. Structure-activity relationship indicated that analogs with halogen substitution(s) were found more active as compared to compounds bearing other substituents. Kinetic studies on most active α-amylase and α-glucosidase inhibitors I (R = 4-ClC6H4, 2,4-di-ClC6H3, 4-F3CC6H4, 2-Cl-5-O2NC6H3, 3-MeO-4-F-C6H3, furan-2-yl, etc.) suggested non-competitive and competitive types of inhibition mechanism for α-amylase and α-glucosidase, resp. Mol. docking studies predicted the good protein-ligand interaction (PLI) profile with key interactions such as arene-arene, H-<, <-<, and <-H etc., against the corresponding targets. There is still a lot of research devoted to this compound(SMILES：NC1=CC=C(Cl)C=C1C=O)Formula: C7H6ClNO, and with the development of science, more effects of this compound(20028-53-9) can be discovered.

Reference:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 2-Amino-5-chlorobenzaldehyde(SMILESS: NC1=CC=C(Cl)C=C1C=O,cas:20028-53-9) is researched.Reference of Ethyl 3,5-Dimethyl-2-pyrrolecarboxylate. The article 《Gold(I)-Catalyzed Unprecedented Rearrangement Reaction Between 2-Aminobenzaldehydes with Propargyl Amines: An Expedient Route to 3-Aminoquinolines》 in relation to this compound, is published in Chemistry – A European Journal. Let’s take a look at the latest research on this compound (cas:20028-53-9).

A gold(I)-catalyzed unprecedented rearrangement reaction between 2-aminobenzaldehydes with propargyl amine was studied. The study provided, for the first time, direct access to 3-aminoquinolines in one step starting from readily available starting materials. Elegantly designed experiments were employed to unravel the mechanism of this unprecedented rearrangement, which are corroborated by DFT calculations

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Reference:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem