Results 31 to 40 of about 3,669 (219)
Heterocyclic Communications, 2020 An easy and convenient technique for the one-pot synthesis of novel compounds of hexahydroacridine-1,8(2H,5H)-dione and octahydroacridin-10(1H)-yl) thiourea derivatives has been developed by the reaction of the octahydro-1H-xanthenes with hydroxylamine ...
Pesyan Nader Noroozi +4 more
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(E)-2-Methoxy-9-(2-methoxy-9H-xanthen-9-ylidene)-9H-xanthene [PDF]
Acta Crystallographica Section E Structure Reports Online, 2013 The title compound, C28H20O4, was synthesized by a bimolecular Zn-HCl reduction in glacial acetic acid using the meth-oxy-substituted xanthone as a starting material. The crystal structure shows that the 2,2'-meth-oxy-bixanthenyl-idene unit is an E-type conformation anti-folded conformer. The mol-ecule lies on an inversion center. The meth-oxy group is
Xiang-Yu Tian, Qin-Hua Song
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, 2014 Citation: 'xanthene dyes' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.X06695 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for commercial
Paul Wright, Updated by Staff
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The Synthesis of Substituted Tetrahydro‐1H‐xanthen‐1‐ones and Xanthenes.
ChemInform, 2005 AbstractFor Abstract see ChemInform Abstract in Full Text.
Mahesh L. Patil, Hanumant B. Borate
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A Checklist of the Stoneflies, or Plecoptera, of Indiana [PDF]
, 2017 Examination of specimens and published records has indicated the presence of 61 species of Plecoptera in Indiana. Annotations include the recognition of another 14 species which should eventually be taken within the state, references to species keys and ...
Bednarik, Andrew F, McCafferty, W. P
core +2 more sources
The Antifungal Activity of Naphthoquinones: An Integrative Review
Anais da Academia Brasileira de CiênciasNaphthoquinones are the most commonly occurring type of quinones in nature. They are a diverse family of secondary metabolites that occur naturally in plants, lichens and various microorganisms.
DÉBORA O. FUTURO +6 more
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γ-Fe2O3@HAP-Fe2+ NPs: An Efficient and Eco-Friendly Catalyst for the Synthesis of Xanthene Derivatives in Water [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2018 Efficient and environmentally friendly syntheses of xanthenes derivatives by using γ-Fe2O3@HAP-Fe2+ NPs as a catalyst has been carried out. The catalyst can be readily isolated by using an external magnet and no obvious loss of activity was observed when
Rahim Hosseinzdeh Khanamiri +4 more
doaj
Bis(silylene)‐Mediated N═N Bond Scission of Diazo Compounds
Angewandte Chemie, Volume 138, Issue 18, 27 April 2026.The carborane‐based bis(silylene) enables unprecedented N═N bond scission in diazodiarylmethanes. While xanthene‐ and aniline‐based scaffolds promote end‐on addition with partial N═N activation, the carborane‐based variant uniquely achieves complete N═N bond scission of Ar2C═N═N compounds, resulting in isolable disilicon nitride imino species.
Yun Xiong, Shenglai Yao, Matthias Driess
wiley +2 more sources
Journal of Saudi Chemical Society, 2015 Recoverable heterogeneous AgI nanoparticles efficiently catalyzed the one-pot synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes via multi-component reaction of aldehydes and 2-naphthol under solvent-free conditions.
Javad Safaei-Ghomi +1 more
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Optical Spectral Study of Rhodamine Dyes Mixture Solution in Chloroform [PDF]
Engineering and Technology Journal, 2013 The spectral properties (absorption and fluorescence) of laser dyes (Rhodamine6G, Rhodamine 3GO and Rhodamine B) mixture have been studied. This type of laser dye belongs to the Xanthenes family, it has dissolved in chloroform to prepare (1*10-5 M) in ...
Slafa Ismael Ibrahim +1 more
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