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Linearly Fused Furochromones by Intramolecular Enaminone Reactions

  • Abdel-Rahman H. Abdel-Rahmana EMAIL logo , Eman M. Keshk and Emad M. El-Telbani
Published/Copyright: June 2, 2014
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Zeitschrift für Naturforschung B
From the journal Zeitschrift für Naturforschung B Volume 57 Issue 5

A number of new linearly fused furochromones were synthesized. The methodology was performed starting from naturally occurring visnagin and khellin via enaminone formation using N,N-dimethyl formamide dimethylacetal followed by ring closure in acidic medium. Various reactions on the enaminone derivatives are described.

Keywords: Furochromone; Enaminone
Received: 2001-11-7
Published Online: 2014-6-2
Published in Print: 2002-5-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

Articles in the same Issue

  1. Redetermination of Bis(η4-1,3-cyclohexadiene)monocarbonyliron
  2. Synthesis and Reactivity of Diborane(4)yl Complexes
  3. Structure and Magnetism of REPtMg (RE = Pr,Nd, Sm)
  4. Spectroscopic Studies on Bis(3,5-di-t-butyl-1,2-benzoquinone 1-oximato)copper(II) and its Mixed-Ligand Complexes. Copper(II)-Radical Ferromagnetic Coupling
  5. Crystal Structures of Piperazinium Tetrabromocadmate(II)-Monohydrate [C4H12N2]CdBr4 · H2O, PiperaziniumTetraiodocadmate(II) [C4H12N2]CdI4, and Bis(trimethylsulphonium) Tetrabromocadmate(II) [(CH3)3S]2CdBr4
  6. A New Layered Chalcogenide in the System NiIn2S4-NiIn2Se4
  7. A New Strontium Lithium Titanium Oxide, SrLi2Ti6O14: Crystal Growth and Structure Determination
  8. Crystal Structures and Magnetic Properties of (2,2'-Dipyridyl)-(3-methoxysalicylaldiminato)copper(II) Perchlorate and (2,2'-Dipyridyl)-(4-methoxysalicylaldiminato)copper(II) Perchlorate
  9. Polysulfonylamine, CLI [1]. Starke und schwache Wasserstoffbrücken in den Kristallstrukturen von 8-Hydroxychinolinium- und 8-Aminochinolinium-dimesylamid / Polysulfonylamines, CLI [1]. Strong and Weak Hydrogen Bonding in the Crystal Structures of 8-Hydroxyquinolinium and 8-Aminoquinolinium Dimesylamide
  10. Polysulfonylamine, CLIII [1]. Schwache Wasserstoffbrücken mit aktivierten Methyldonoren: Kristallstrukturen von Cholinium-, Betainium- und Dimethyl[2-(dimethylamino)ethyl]ammonium-dimesylamid Polysulfonylamines, CLIII [1]. Weak Hydrogen Bonding with Activated Methyl Donors: Crystal Structures of Cholinium, Betainium and Dimethyl[2-(dimethylamino)ethyl]ammonium-dimesylamide
  11. Transition Metal Complexes of Derivatized Chiral Dihydro-1,2,4-triazin-6-ones, Part IV [1]. Synthesis and Structural Characterization of a Copper(II) Complex of (L)-3-Acetyl-5-benzyl-1-phenyl-4,5-dihydro-1,2,4-triazin-6-one Oxime
  12. Synthesis and Tautomeric Structure of 1,2-Bis-(7-arylhydrazono-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazin-3-yl)ethanes
  13. Linearly Fused Furochromones by Intramolecular Enaminone Reactions
  14. III. Thioanalogs of Sparteine Lactams. (+)-17-Thionosparteine and its Perchlorate Salt
  15. Studies in the Acid Catalysed Glycosylation of α-Tocopherol
  16. Synthesis of 9-Methoxy and 9-Acetoxy-3-amino-1-(4-methoxyphenyl)- 1H-benzo[f]chromene-2-carbonitriles via 2-(Imino-piperidin-1-yl-methyl)- 3-(4-methoxyphenyl)acrylonitrile as Intermediate
  17. Structure of Diastereomeric 10-Bromo-10,11-dihydroquinines
  18. (2S)-1-(4-Methoxyphenyl)-N-[(1R)-2-(4-methoxyphenyl)-1- methylethyl]-2-propanamine in Crude p-Methoxyamphetamine (PMA) Produced by the Leuckart Method
https://doi.org/10.1515/znb-2002-0513
Keywords for this article
Furochromone; Enaminone

Articles in the same Issue

  1. Redetermination of Bis(η4-1,3-cyclohexadiene)monocarbonyliron
  2. Synthesis and Reactivity of Diborane(4)yl Complexes
  3. Structure and Magnetism of REPtMg (RE = Pr,Nd, Sm)
  4. Spectroscopic Studies on Bis(3,5-di-t-butyl-1,2-benzoquinone 1-oximato)copper(II) and its Mixed-Ligand Complexes. Copper(II)-Radical Ferromagnetic Coupling
  5. Crystal Structures of Piperazinium Tetrabromocadmate(II)-Monohydrate [C4H12N2]CdBr4 · H2O, PiperaziniumTetraiodocadmate(II) [C4H12N2]CdI4, and Bis(trimethylsulphonium) Tetrabromocadmate(II) [(CH3)3S]2CdBr4
  6. A New Layered Chalcogenide in the System NiIn2S4-NiIn2Se4
  7. A New Strontium Lithium Titanium Oxide, SrLi2Ti6O14: Crystal Growth and Structure Determination
  8. Crystal Structures and Magnetic Properties of (2,2'-Dipyridyl)-(3-methoxysalicylaldiminato)copper(II) Perchlorate and (2,2'-Dipyridyl)-(4-methoxysalicylaldiminato)copper(II) Perchlorate
  9. Polysulfonylamine, CLI [1]. Starke und schwache Wasserstoffbrücken in den Kristallstrukturen von 8-Hydroxychinolinium- und 8-Aminochinolinium-dimesylamid / Polysulfonylamines, CLI [1]. Strong and Weak Hydrogen Bonding in the Crystal Structures of 8-Hydroxyquinolinium and 8-Aminoquinolinium Dimesylamide
  10. Polysulfonylamine, CLIII [1]. Schwache Wasserstoffbrücken mit aktivierten Methyldonoren: Kristallstrukturen von Cholinium-, Betainium- und Dimethyl[2-(dimethylamino)ethyl]ammonium-dimesylamid Polysulfonylamines, CLIII [1]. Weak Hydrogen Bonding with Activated Methyl Donors: Crystal Structures of Cholinium, Betainium and Dimethyl[2-(dimethylamino)ethyl]ammonium-dimesylamide
  11. Transition Metal Complexes of Derivatized Chiral Dihydro-1,2,4-triazin-6-ones, Part IV [1]. Synthesis and Structural Characterization of a Copper(II) Complex of (L)-3-Acetyl-5-benzyl-1-phenyl-4,5-dihydro-1,2,4-triazin-6-one Oxime
  12. Synthesis and Tautomeric Structure of 1,2-Bis-(7-arylhydrazono-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazin-3-yl)ethanes
  13. Linearly Fused Furochromones by Intramolecular Enaminone Reactions
  14. III. Thioanalogs of Sparteine Lactams. (+)-17-Thionosparteine and its Perchlorate Salt
  15. Studies in the Acid Catalysed Glycosylation of α-Tocopherol
  16. Synthesis of 9-Methoxy and 9-Acetoxy-3-amino-1-(4-methoxyphenyl)- 1H-benzo[f]chromene-2-carbonitriles via 2-(Imino-piperidin-1-yl-methyl)- 3-(4-methoxyphenyl)acrylonitrile as Intermediate
  17. Structure of Diastereomeric 10-Bromo-10,11-dihydroquinines
  18. (2S)-1-(4-Methoxyphenyl)-N-[(1R)-2-(4-methoxyphenyl)-1- methylethyl]-2-propanamine in Crude p-Methoxyamphetamine (PMA) Produced by the Leuckart Method
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