Tag: M.W=100-150

Zhou, Xin; Hou, Zilong; Song, Jingjing; Lv, Lin published the artcile< Spectrum evolution of dissolved aromatic organic matters (DAOMs) during electro-peroxi-coagulation pretreatment of coking wastewater>, COA of Formula: C9H7NO, the main research area is coking wastewater electrocoagulation treatment dissolved aromatic organic matter.

Enormous existence of dissolved aromatic organic matters (DAOMs) is considered to be a major cause that coking wastewater is hardly degraded. In this study, an advanced electro-chem. process i.e., electro-peroxi-coagulation (EPC) was developed as a pretreatment for efficiently degrading DAOMs and improving the biodegradability of the raw coking wastewater. Gas chromatog.-mass spectrometry (GC-MS) also confirmed that most of DAOMs (phenolics, heterocycles, polycyclic aromatic hydrocarbons, benzenes, organic nitriles and anilines) could be effectively decomposed by EPC pretreatment. UV visible (UV-Vis), Fourier transform IR spectroscopy (FTIR) and excitation-emission matrix (EEM) consistently found remarkable spectrum variations of DAOMs in the first 15 min, while spectrum changes became gentle until 2 h. The spectrum evolution of DAOMs suggests the strong attacks on the benzene rings and unsaturated bonds of DAOMs occurs initially and then low mol. intermediates are further degraded. Therefore, EPC should be a feasible option for coking wastewater pretreatment based on the combination of electro-oxidation and electro-precipitation

Separation and Purification Technology published new progress about Benzenoid aromatic compounds Role: PEP (Physical, Engineering or Chemical Process), POL (Pollutant), REM (Removal or Disposal), PROC (Process), OCCU (Occurrence). 3336-49-0 belongs to class isoquinoline, and the molecular formula is C9H7NO, COA of Formula: C9H7NO.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Hartung, Ryan E.; Wall, Mark C.; Lebreton, Sylvain; Smrcina, Martin; Patek, Marcel published the artcile< Selectivity of N- versus O-alkylation in Mitsunobu reactions with various quinolinols and isoquinolinols>, Quality Control of 3336-49-0, the main research area is quinolinol alc chemoselective Mitsunobu alkylation; isoquinolinol alc chemoselective Mitsunobu alkylation.

Reacting quinolinols and isoquinolinols under Mitsunobu conditions could give rise to N-alkylated products in addition to the normally desired O-alkylated structures. An in-depth study of how the solvent, reagent equivalent, position of the quinoline/isoquinoline nitrogen and type of reacting aliphatic alc. employed affected the ratio of N- vs. O-alkylation was described.

Heterocycles published new progress about Aliphatic alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 3336-49-0 belongs to class isoquinoline, and the molecular formula is C9H7NO, Quality Control of 3336-49-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Townley, Chloe; McMurray, Lindsay; Marsden, Stephen P.; Nelson, Adam published the artcile< A unified ""top-down"" approach for the synthesis of diverse lead-like molecular scaffolds>, Computed Properties of 3336-49-0, the main research area is organic mol scaffold diastereoselective preparation; Molecular diversity; Molecular scaffolds; Screening compounds.

A “”top-down”” synthetic approach enabled the step-efficient synthesis of 21 diverse novel mol. scaffolds. The scaffolds were derived from four complex intermediates that had been prepared using cycloaddition chem. Scaffold-hopping of these intermediates was achieved through attachment of an addnl. ring, ring cleavage, ring expansion and/or ring fusion. It was shown that the resulting scaffolds could be decorated to yield diverse lead-like screening compounds

Bioorganic & Medicinal Chemistry Letters published new progress about 1,4-Addition reaction catalysts. 3336-49-0 belongs to class isoquinoline, and the molecular formula is C9H7NO, Computed Properties of 3336-49-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Molloy, John J.; Clohessy, Thomas A.; Irving, Craig; Anderson, Niall A.; Lloyd-Jones, Guy C.; Watson, Allan J. B. published the artcile< Chemoselective oxidation of aryl organoboron systems enabled by boronic acid-selective phase transfer>, Category: isoquinoline, the main research area is aryl organoboron compound chemoselective oxidation selective phase transfer; diboronic acid chemoselective oxidation selective phase transfer.

The authors report the direct chemoselective Brown-type oxidation of aryl organoboron systems containing two oxidizable B groups. Basic biphasic reaction conditions enable selective formation and phase transfer of a boronic acid trihydroxyboronate in the presence of boronic acid pinacol (BPin) esters, while avoiding speciation equilibrium Spectroscopic studies validate a base-promoted phase-selective discrimination of organoboron species. This phenomenon is general across a broad range of organoboron compounds and can also be used to invert conventional protecting group strategies, enabling chemoselective oxidation of BMIDA species over normally more reactive BPin substrates. The authors also demonstrate the selective oxidation of diboronic acid systems with chemoselectivity predictable a priori. The utility of this method is exemplified through the development of a chemoselective oxidative nucleophile coupling.

Chemical Science published new progress about Arylboronic acids Role: PEP (Physical, Engineering or Chemical Process), PRP (Properties), RCT (Reactant), SPN (Synthetic Preparation), PROC (Process), RACT (Reactant or Reagent), PREP (Preparation). 3336-49-0 belongs to class isoquinoline, and the molecular formula is C9H7NO, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Gualandi, Andrea; Savoini, Andrea; Saporetti, Roberto; Franchi, Paola; Lucarini, Marco; Cozzi, Pier Giorgio published the artcile< A facile hydroxylation of arylboronic acids mediated by sodium ascorbate>, Quality Control of 3336-49-0, the main research area is arylboronic acid sodium ascorbate hydroxylation green chem; phenol preparation.

A simple, direct and facile hydroxylation of arylboronic acids was described. The reaction was carried out under air, in an open flask, using 2 equiv of sodium ascorbate. A variety of arylboronic acids were transformed into the corresponding phenols in excellent to moderate isolated yields. The reaction tolerated the presence of functional groups, and mols. that are readily oxidized by H2O2 can be present in the reaction mixture This green methodol. avoids the use of photoredox conditions, transition metals, or other strong oxidants.

Organic Chemistry Frontiers published new progress about Aryl bromides Role: RCT (Reactant), RACT (Reactant or Reagent). 3336-49-0 belongs to class isoquinoline, and the molecular formula is C9H7NO, Quality Control of 3336-49-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Xia, Shanghua; Gan, Lu; Wang, Kailiang; Li, Zheng; Ma, Dawei published the artcile< Copper-Catalyzed Hydroxylation of (Hetero)aryl Halides under Mild Conditions>, Application of C9H7NO, the main research area is phenol aryl heteroaryl alc chemoselective preparation; copper oxalamide catalyst chemoselective hydroxylation aryl chloride bromide iodide; aryl heteroaryl halide chemoselective hydroxylation copper oxalamide catalyst.

In the presence of Cu(acac)2 and N,N’-bis(4-hydroxyl-2,6-dimethylphenyl)oxalamide, aryl and heteroaryl chlorides, bromides, and iodides underwent hydroxylation reactions in DMSO/H2O to yield phenols and aryl and heteroaryl alcs. A wide range of aryl and heteroaryl chlorides bearing either electron-donating or electron-withdrawing groups underwent hydroxylation at 130 °C to provide the corresponding phenols and hydroxylated heteroarenes in 52-96% yields. When more reactive aryl and heteroaryl bromides and iodides were employed, the hydroxylation reactions could be performed at 80° and 60°, resp., using 0.5 mol% of Cu(acac)2.

Journal of the American Chemical Society published new progress about Aromatic alcohols Role: SPN (Synthetic Preparation), PREP (Preparation). 3336-49-0 belongs to class isoquinoline, and the molecular formula is C9H7NO, Application of C9H7NO.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Zeng, Jia; Lytle, Anna K.; Gage, David; Johnson, Sean J.; Zhan, Jixun published the artcile< Specific chlorination of isoquinolines by a fungal flavin-dependent halogenase>, Related Products of 3336-49-0, the main research area is halogenase Rdc1 Pochonia isoquinoline specific chlorination; chloroisoquinoline biosynthesis halogenase Rdc1 Pochonia.

Rdc2 of Pochonia chlamydosporia is the 1st flavin-dependent halogenase identified from fungi. Based on the reported structure of the bacterial halogenase CmlS, the authors built a homol. model for Rdc2. The model suggested an open substrate binding site that was capable of binding the natural substrate, monocillin II, and possibly other mols. such as 4-hydroxyisoquinoline (I) and 6-hydroxyisoquinoline (II). In vitro and in vivo halogenation experiments confirmed that I and II could be halogenated at the position ortho to the OH group, leading to the synthesis of the chlorinated isoquinolines, 3-chloro-4-hydroxyisoquinoline and 5-chloro-6-hydroxyisoquinoline, resp., which further expanded the spectrum of identified substrates of Rdc2. This work revealed that Rdc2 is a useful biocatalyst for the synthesis of various halogenated compounds

Bioorganic & Medicinal Chemistry Letters published new progress about Pochonia chlamydosporia. 3336-49-0 belongs to class isoquinoline, and the molecular formula is C9H7NO, Related Products of 3336-49-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Chopard, Claude; Bertho, Gildas; Prange, Thierry published the artcile< Naphthalene dioxygenase catalyzed cis-dihydroxylation of bicyclic aza arenes>, Recommanded Product: Isoquinolin-4-ol, the main research area is quinoline isoquinoline phthalazine naphthalene dioxygenase catalyst dihydroxylation biocatalyst enzyme; naphthyridine quinoxaline quinazoline cinnoline naphthalene dioxygenase catalyst dihydroxylation.

The scope of the biotransformation of a series of aza arene compounds by recombinant whole-cells of Escherichia coli JM109(DE3)(pDTG141) expressing the naphthalene dioxygenase system (NDOS) from Pseudomonas sp. NCIB 9616-4 was explored. The present study establishes that several bicyclic aza arenes are good substrates in the NDO-catalyzed reaction, giving cis-dihydrodiol derivatives Monohydroxylated products were also observed (quinolinemethanol, quinolinol, isoquinolinol, isoquinolinemethanol, phthalazinol, cinnolinol, quinazolinol).

RSC Advances published new progress about Aromatic alcohols Role: BPN (Biosynthetic Preparation), BIOL (Biological Study), PREP (Preparation) (aza arene alc. derivatives). 3336-49-0 belongs to class isoquinoline, and the molecular formula is C9H7NO, Recommanded Product: Isoquinolin-4-ol.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Jiang, Xingjun; He, Jianbo; Chen, Hongli; Yang, Weiqing; Zhang, yuanyuan; Ma, Menglin published the artcile< Copper-catalyzed hydrolysis of bromoisoquinolines: preparation of hydroxyisoquinolines>, Category: isoquinoline, the main research area is hydroxyisoquinoline preparation; bromoisoquinoline copper catalyst hydrolysis.

A complex phenomenon was observed in the process of preparing hydroxyisoquinoline through copper-catalyzed hydrolysis of bromoisoquinoline. The copper (II) complexes of hydroxyisoquinoline (L2Cu.5H2O) were characterized by high resolution mass spectra, thermogravimetric anal., IR, 1H NMR (NMR), and 2D-NMR. The Cu (II) complexes were mononuclear and coordinated with oxygen and nitrogen atom of two hydroxyisoquinoline and five water mols. in which a strong hydrogen bond was present. Two optimized methods were studied to prevent the formation of copper (II) complexes. The isoquinoline with 4, 5, 6, 7, and 8 hydroxyl substitutions were successfully prepared by copper-catalyzed hydrolysis of corresponding bromoisoquinoline and then workup by sodium sulfide or adjusted pH by dry ice or carbon dioxide gas.

Indian Journal of Heterocyclic Chemistry published new progress about Hydrolysis. 3336-49-0 belongs to class isoquinoline, and the molecular formula is C9H7NO, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Kazmi, M. Zain H.; Rygus, Jason P. G.; Ang, Hwee Ting; Paladino, Marco; Johnson, Matthew A.; Ferguson, Michael J.; Hall, Dennis G. published the artcile< Lewis or Bronsted? A Rectification of the Acidic and Aromatic Nature of Boranol-Containing Naphthoid Heterocycles>, COA of Formula: C9H7NO, the main research area is aromatic nature Boranol Containing naphthoid heterocycles Lewis Bronsted.

Boron-containing heterocycles are important in a variety of applications from drug discovery to materials science; therefore a clear understanding of their structure and reactivity is desirable to optimize these functions. Although the boranol (B-OH) unit of boronic acids behaves as a Lewis acid to form a tetravalent trihydroxyborate conjugate base, it has been proposed that pseudoarom. hemiboronic acids may possess sufficient aromatic character to act as Bronsted acids and form a boron oxy conjugate base, thereby avoiding the disruption of ring aromaticity that would occur with a tetravalent boronate anion. Until now no firm evidence existed to ascertain the structure of the conjugate base and the aromatic character of the boron-containing ring of hemiboronic “”naphthoid”” isosteres. Here, these questions are addressed with a combination of exptl., spectroscopic, X-ray crystallog., and computational studies of a series of model benzoxazaborine and benzodiazaborine naphthoids. Although these hemiboronic heterocycles are unambiguously shown to behave as Lewis acids in aqueous solutions, boraza derivatives possess partial aromaticity provided their nitrogen lone electron pair is sufficiently available to participate in extended delocalization. As demonstrated by dynamic exchange and crossover experiments, these heterocycles are stable in neutral aqueous medium, and their measured pKa values are consistent with the ability of the endocyclic heteroatom substituent to stabilize a partial neg. charge in the conjugate base. Altogether, this study corrects previous inaccuracies and provides conclusions regarding the properties of these compounds that are important toward the methodical application of hemiboronic and other boron heterocycles in catalysis, bioconjugation, and medicinal chem.

Journal of the American Chemical Society published new progress about Aromaticity. 3336-49-0 belongs to class isoquinoline, and the molecular formula is C9H7NO, COA of Formula: C9H7NO.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem