Metagenomic analysis of aromatic ring-cleavage mechanism in nano-Fe3O4@activated coke enhanced bio-system for coal pyrolysis wastewater treatment.
Sign Up to like & getrecommendations! Published in 2021 at "Journal of hazardous materials"
DOI: 10.1016/j.jhazmat.2021.125387
Abstract: In current study, nano-Fe3O4@activated coke enhanced bio-system (FEBS) under limited-oxygen condition was applied for efficient treatment of aromatic organics in coal pyrolysis wastewater. Metagenomic analyses revealed functional microbiome linkages and mechanism involved in aromatic ring-cleavage.… read more here.
Keywords: nano fe3o4; cleavage; analysis; ring cleavage ... See more keywords
Synthesis of 1-(2-bromo-1-arylethyl)-1H-benzotriazoles via NBS promoted addition of 1H-benzotriazole to alkene: Relevance in benzotriazole ring cleavage
Sign Up to like & getrecommendations! Published in 2020 at "Tetrahedron"
DOI: 10.1016/j.tet.2020.131078
Abstract: Abstract A cost-effective and expeditious one-pot synthesis of 1-(2-bromo-1-arylethyl)-1H-benzotriazoles has been devised by reacting styrene and their derivatives with 1H-benzotriazole in presence of N-bromosuccinimide in anhydrous CH2Cl2 at room temperature. Further, the resulted compounds undergo… read more here.
Keywords: bromo arylethyl; benzotriazole ring; synthesis bromo; ring cleavage ... See more keywords
CuX Dual Catalysis: Construction of Oxazolo[2,3-b][1,3]oxazines via a Tandem CuAAC/Ring Cleavage/[4+2+3] Annulation Reaction.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c02705
Abstract: CuX as a simple dual catalyst strategy that promotes the tandem transformations of fused oxazolo[2,3-b][1,3]oxazines has been developed. Copper catalyzed terminal ynones, sulfonyl azides, and nitriles for the CuAAC/ring cleavage/[4+2] annulation reaction, while the halogen… read more here.
Keywords: cuaac ring; cleavage annulation; oxazolo oxazines; ring cleavage ... See more keywords
Cu-Catalyzed Redox-Neutral Ring Cleavage of Cycloketone O-Acyl Oximes: Chemodivergent Access to Distal Oxygenated Nitriles.
Sign Up to like & getrecommendations! Published in 2018 at "Organic letters"
DOI: 10.1021/acs.orglett.7b03707
Abstract: A chemodivergent copper-catalyzed ring opening of cycloketone oximes via radical-mediated C-C bond cleavage under redox-neutral conditions is described. This method allows the divergent synthesis of γ- and δ-acyloxylated, alkoxylated, and hydroxylated nitriles while avoiding the… read more here.
Keywords: cycloketone; redox neutral; ring cleavage; catalyzed redox ... See more keywords
Synthesis of Functionalized 5-Amino-3(2H)-furanones via Base-Catalyzed Ring-Cleavage/Recyclization of 4-Cyano-3(2H)-furanones in the Presence of Water
Sign Up to like & getrecommendations! Published in 2018 at "Synthesis"
DOI: 10.1055/s-0037-1609916
Abstract: 5-Alkyl/aryl/hetaryl-4-cyano-3(2H)-furanones undergo ring-cleavage/recyclization in the presence of water under mild conditions [MOH (M = Na, K), aqueous ethanol, 20–25 °C] to afford 4-acyl/aroyl/hetaroyl-5-amino-3(2Н)-furanones in 75–99% yields. read more here.
Keywords: cyano furanones; amino furanones; cleavage recyclization; ring cleavage ... See more keywords
Electrochemically Catalyzed N–N Coupling and Ring Cleavage Reaction of 1H-Pyrazoles
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DOI: 10.1055/s-0040-1706050
Abstract: The electrocatalyzed N–N coupling and ring cleavage reaction of 3-methyl-, 3,5-dimethyl-, 3-methyl-5-phenyl- and 3,5-diphenyl-1H-pyrazole was investigated and led to the electro-organic synthesis of new heterocyclic compounds. The results revealed that electrochemically produced 1H-pyrazoleox plays the… read more here.
Keywords: reaction pyrazoles; cleavage reaction; coupling ring; reaction ... See more keywords
Four Aromatic Intradiol Ring Cleavage Dioxygenases from Aspergillus niger
Sign Up to like & getrecommendations! Published in 2019 at "Applied and Environmental Microbiology"
DOI: 10.1128/aem.01786-19
Abstract: Aromatic ring opening using molecular oxygen is one of the critical steps in the degradation of aromatic compounds by microorganisms. While enzymes catalyzing this step have been well-studied in bacteria, their counterparts from fungi are… read more here.
Keywords: aspergillus niger; aromatic compounds; intradiol; ring cleavage ... See more keywords
Separate Upper Pathway Ring Cleavage Dioxygenases Are Required for Growth of Sphingomonas wittichii Strain RW1 on Dibenzofuran and Dibenzo-p-Dioxin
Sign Up to like & getrecommendations! Published in 2021 at "Applied and Environmental Microbiology"
DOI: 10.1128/aem.02464-20
Abstract: S. wittichii RW1 has been the subject of numerous investigations, because it is one of only a few strains known to grow on DXN as the sole carbon and energy source. However, while the genome… read more here.
Keywords: dxn; dxn degradation; ring cleavage; rw1 ... See more keywords
Solvent-Free Ring Cleavage Hydrazinolysis of Certain Biginelli Pyrimidines
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Chemistry"
DOI: 10.1155/2018/6354742
Abstract: Certain Biginelli pyrimidines with ester substitution in C5 were subjected to unexpected ring opening upon solvent-free reaction with hydrazine hydrate to give three products: pyrazole, arylidenehydrazines, and urea/thiourea, respectively. The nonisolable carbohydrazide intermediates are formed… read more here.
Keywords: free ring; biginelli pyrimidines; certain biginelli; ring cleavage ... See more keywords
Antibacterial and Cytotoxic Bridged and Ring Cleavage Angucyclinones From a Marine Streptomyces sp
Sign Up to like & getrecommendations! Published in 2020 at "Frontiers in Chemistry"
DOI: 10.3389/fchem.2020.00586
Abstract: Chemical investigation of a marine-derived Streptomyces sp. KCB-132, cultivated in liquid ISP2 medium, had led to the discovery of three C-ring cleavage angucyclinone N-heterocycles, pratensilins A–C, with a novel spiro indolinone-naphthofuran skeleton. Addition of 50… read more here.
Keywords: cleavage; ring cleavage; antibacterial cytotoxic; bridged ring ... See more keywords