Results 31 to 40 of about 1,366 (154)
Attempts to prepare an all-carbon indigoid system
Beilstein Journal of Organic Chemistry, 2015 First attempts are described to prepare a precursor for an all-carbon analog of indigo, the tetracyclic triene 4. Starting from indan-2-one (9) the α-methylene ketone 13 was prepared.
Şeref Yildizhan +2 more
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Green Synthesis of Indeno[1,2-b]quinoxalines Using β-Cyclodextrin as Catalyst
Molecules, 2022 An efficient, mild, and green method was developed for the synthesis of indeno[1,2-b]quinoxaline derivatives via o-phenylenediamine (OPD) and 2-indanone derivatives utilizing β-cyclodextrin (β-CD) as the supramolecular catalyst.
Li-Guo Liao +7 more
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Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2003 İnternet, dünya çapında yaygın olan farklı yapı ve iletişinı sistemlerindeki bilgisayarların bilgi paylaşımı ekseni etrafında birleşmesi ile oluşmuş geniş alan ağıdır.
CEMİL ÖZ, GÖKHAN FİDAN
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1′-Methyl-4′-[4-(trifluoromethyl)phenyl]dispiro[indan-2,2′-pyrrolidine-3′,2′′-indan]-1,3,1′′-trione [PDF]
Acta Crystallographica Section E Structure Reports Online, 2011 Dans le composé du titre, C(28)H(20)F(3)NO(3), le cycle pyrrolidine adopte une conformation en demi-chaise. Les autres cycles à cinqchaînonsadoptent des conformations d'enveloppe avec les atomes de spiro et de méthylène C comme atomes de lambeau. Dans le cristal,les mol-éculessont connectées via de faibles liaisonshydrogène C-H O, formant des feuilles ...
Ang Chee Wei +4 more
openaire +3 more sources
4-{[(1S,2R)-2-Hydroxyindan-1-yl]amino}pent-3-en-2-one
Acta Crystallographica Section E, 2012 In the molecule of the title compound, C14H17NO2, the dihedral angle formed by the mean planes through the indan ring system and the aminopentenone fragment is 83.26 (13)°. An intramolecular N—H...O hydrogen bond is observed.
Ka Hyun Park +4 more
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Journal of Asia-Pacific Biodiversity, 2021 Macodes limii J.J. Wood & A.L. Lamb is an endemic jewel orchid of Sabah in Borneo. The species has unique characteristic with high potential to be commercialized as ornamental plant.
Halyena Indan +4 more
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Angewandte Chemie, Volume 138, Issue 3, 16 January 2026.Dieser Mini‐Review behandelt die neuesten Fortschritte bei der Synthese, Reaktivität und metallfreien katalytischen Verwendung von mesoionischen N‐heterocyclischen Olefinen (mNHOs), Iminen (mNHIs), Thionen (mNHTs) und Phosphinidenen (mNHPs). Kurzzusammenfassung Übergangsmetallverbindungen sind allgemein für ihre Fähigkeit bekannt, kleine Moleküle zu ...
Subir Maji +3 more
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Angewandte Chemie, Volume 137, Issue 29, July 14, 2025.Aziridination of alkenes is an important route to chiral nitrogen‐containing building blocks. We report that carbamate‐functionalized allylic alcohols undergo highly enantioselective aziridination using achiral dimeric Rh complexes ion‐paired with cinchona alkaloid‐derived chiral cations.
Arthur R. Lit +4 more
wiley +2 more sources
Journal of Chemistry, 2017 New polycyclic-fused isoxazolo[4,5-e]pyridines and spirooxindoles were obtained via multicomponent reaction of 5-amino-3-methylisoxazole, indan-1,3-dione, and aromatic aldehydes and reaction of 5-amino-3-methylisoxazole, isatin, and β-diketones in the ...
Emel Pelit
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Mesoionic N‐Heterocyclic Olefins, Imines, Thiones, Phosphinidenes and Their Application in Catalysis
Angewandte Chemie International Edition, Volume 65, Issue 3, 16 January 2026.This minireview covers recent advances in the synthesis, reactivity, and metal‐free catalytic uses of mesoionic N‐heterocyclic olefins (mNHOs), imines (mNHIs), thiones (mNHTs), and phosphinidenes (mNHPs). Abstract Transition metal compounds are widely known for their ability to activate small molecules and are excellent catalysts for a wide range of ...
Subir Maji +3 more
wiley +1 more source