Results 31 to 40 of about 4,409 (215)
Molecules, 2018 Four new, stabilized phosphonium ylides containing a 2-(benzyl(methyl)amino)phenyl group have been prepared and characterized and are found, upon pyrolysis under gas-phase flow conditions, to lose Ph3PO and benzyl radicals to afford new heterocyclic ...
R. Alan Aitken +2 more
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Structure-Activity Relationships of Synthetic Analogs of Jasmonic Acid and Coronatine on Induction of Benzophenanthridine Alkaloid Accumulation in Eschscholzia californica Cell Cultures [PDF]
, 2000 Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence
Blechert, Siegfried +4 more
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Structurally Simple Phenanthridine Analogues Based on Nitidine and Their Antitumor Activities
Molecules, 2019 A series of novel structurally simple analogues based on nitidine was designed and synthesized in search of potent anticancer agents. The antitumor activity against human cancer cell lines (HepG2, A549, NCI-H460, and CNE1) was performed by 3-(4,5 ...
Shu-Qin Qin +4 more
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Beilstein Journal of Organic Chemistry, 2013 We report a new synthesis of phenanthridines based on palladium-catalyzed picolinamide-directed sequential C–H functionalization reactions starting from readily available benzylamine and aryl iodide precursors.
Ryan Pearson +4 more
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A radical addition/cyclization of diverse ethers to 2-isocyanobiaryls under mildly basic aqueous conditions [PDF]
, 2016 Mildly basic aqueous conditions facilitated the tert-butyl peroxybenzoate (TBPB) mediated dehydrogenative addition of a range of ethers, including acetals, to diverse substituted 2-isocyanobiaryls. Mechanistic studies suggest that this radical cascade is
Anton-Torrecillas, Cintia +2 more
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6-(3,4-Difluorophenyl)-7,8,13,14-tetrahydrodibenzo[c,k]phenanthridine
IUCrData, 2020 In the title compound, C27H19F2N, the five-fused-ring system is highly puckered and the dihedral angle between the central pyridine ring and pendant difluorobenzene ring is 45.12 (12)°.
Yiwen Fang, Bingbing Liu, Zhixiang Jia
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Journal of Pharmacy & Pharmaceutical Sciences, 2009 Purpose. This study describes the antibacterial effect of extracts and compounds isolated from the aerial part of Chelidonium majus Linn. (Papaveraceae) acting against clinical strains of methicillin-resistant Staphylococcus aureus (MRSA). Methods.
Guo Ying Zuo +5 more
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Analysis of benzo[c] phenanthridine alkaloids in Eschscholtzia californica cell culture using HPLC-DAD and HPLC-ESI-MS/MS [PDF]
, 2014 Effective HPLC-DAD and HPLC-ESI-MS/MS methods have been developed for the analysis of eight benzo[c] phenanthridine alkaloids (sanguinarine, chelirubine, macarpine, chelerythrine, dihydrosanguinarine, dihydrochelirubine, dihydromacarpine and ...
Hong Soon Rhee +4 more
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Radical Fluoroalkylation Reactions [PDF]
, 2018 Recent protocols and reactions for catalytic radical perfluoroalkylations will be described. The production of perfluoroalkyl radicals (RF = CnF2n+1, n ≥ 2), which effect both addition and substitution reactions on organic substrates, can be realized ...
Barata Vallejo, Sebastian +2 more
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Metal-Free Photoredox Catalyzed Cyclization of O-(2,4-Dinitrophenyl)oximes to Phenanthridines
Molecules, 2016 A metal-free visible-light photoredox-catalyzed intermolecular cyclization reaction of O-2,4-dinitrophenyl oximes to phenanthridines was developed. In this study, the organic dye eosin Y and i-Pr2NEt were used as photocatalyst and terminal reductant ...
Xiubin Liu +5 more
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