• English
    • Ελληνικά
  • English 
    • English
    • Ελληνικά
  • Login
Browsing by Subject 
  •   Home
  • Browsing by Subject
  •   Home
  • Browsing by Subject
JavaScript is disabled for your browser. Some features of this site may not work without it.

Browsing by Subject "Heterocycle"

  • 0-9
  • Α
  • Β
  • Γ
  • Δ
  • Ε
  • Ζ
  • Η
  • Θ
  • Ι
  • Κ
  • Λ
  • Μ
  • Ν
  • Ξ
  • Ο
  • Π
  • Ρ
  • Σ
  • Τ
  • Υ
  • Φ
  • Χ
  • Ψ
  • Ω
  • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
  • I
  • J
  • K
  • L
  • M
  • N
  • O
  • P
  • Q
  • R
  • S
  • T
  • U
  • V
  • W
  • X
  • Y
  • Z

Sort by:

Order:

Results:

Now showing items 1-8 of 8

  • title
  • submit date
  • accessioned date
  • ascending
  • descending
  • 5
  • 10
  • 20
  • 40
  • 60
  • 80
  • 100
    • Article  

      1,2,3-Dithiazole chemistry in heterocyclic synthesis 

      Christoforou, Irene C.; Koutentis, Panayiotis Andreas; Michaelidou, Sophia S. (2006)
      The chemistry of various 5H-1,2,3-dithiazoles is investigated with emphasis on assisted ring opening and ring closure reactions leading to new heterocycles. Thus on treatment with catalytic tetraalkylammonium iodide ...

    • Article  

      3-amino-6-ethoxy-4-phenyl-1H-pyrrolo[2,3-b]pyridine-2,5-dicarbonitrile 

      Koutentis, Panayiotis Andreas; Michaelidou, Sophia S. (2010)
      (Z)-2-(4-Chloro-5H-1,2,3-dithiazol-5-ylideneamino)-6-ethoxy-4-phenylpyridine- 3,5-dicarbonitrile 1, when treated with either triphenylphosphine (4 equiv.) or polymer bound triphenylphosphine (5 equiv.) in dichloromethane ...

    • Article  

      4-chloro-6-ethoxy-2-(Methylthio)pyrimidine 

      Kalogirou, Andreas S.; Koutentis, Panayiotis Andreas (2017)
      4,6-Dichloro-2-(methylthio) pyrimidine (3) reacts with EtONa in EtOH, at ca. 20 °C, for 2 h, to give exclusively 4-chloro-6-ethoxy-2-(methylthio)pyrimidine (5) in 89% yield. The latter is presented as a useful multifunctionalised ...

    • Article  

      The preparation and characterization of 5-substituted-4-chloro-1,2,3- dithiazolium salts and their conversion into 4-substituted-3-chloro-1,2,5- thiadiazoles 

      Koutentis, Panayiotis Andreas (2005)
      A series of monosubstituted acetonitriles were treated with disulfur dichloride at room temperature in CH2Cl2 to afford 5-substituted-4-chloro-1,2,3-dithiazolium chlorides 1. Where the 5-substituent was not a good leaving ...

    • Article  

      A qualitative comparison of the reactivities of 3,4,4,5-Tetrachloro-4H-1,2,6-thiadiazine and 4,5-Dichloro-1,2,3-dithiazolium Chloride 

      Kalogirou, Andreas S.; Koutentis, Panayiotis Andreas (2015)
      The high yielding transformations of 3,4,4,5-tetrachloro-4H-1,2,6-thiadiazine into 3,5-dichloro-4H-1,2,6-thiadiazin-4-one (up to 85%) and 2-(3,5-dichloro-4H-1,2,6- thiadiazin-4-ylidene)malononitrile (up to 83%) have been ...

    • Article  

      Regioselective geminal dichloride reactivity of 3,4,4,5-tetrachloro-4H-1,2,6-thiadiazine: Access to 4,4-dioxo- and dithio-ketals 

      Kalogirou, Andreas S.; Koutentis, Panayiotis Andreas (2016)
      Treatment of 3,4,4,5-tetrachloro-4H-1,2,6-thiadiazine (2) with selected alkanols, arenols and thiols led to regiospecific substitution of both geminal C-4 chlorines resulting in the formation of ketal or thioketal ...

    • Article  

      Synthesis of 2-(4H-1,2,6-thiadiazin-4-ylidene)malononitriles 

      Kalogirou, Andreas S.; Koutentis, Panayiotis Andreas (2014)
      The base-free TiCl4-mediated condensation of 3,5-disubstituted-4H-1,2,6-thiadiazin-4-ones 8 with malononitrile affords 20 difficult to access (3,5-disubstituted-4H-1,2,6-thiadiazin-4-ylidene)malononitriles 7. The reaction ...

    • Article  

      (Z)-2-(4-chloro-5h-1,2,3-dithiazol-5-ylideneamino)-6-ethoxy-4-phenylpyridine-3,5-dicarbonitrile 

      Koutentis, Panayiotis Andreas; Michaelidou, Sophia S. (2010)
      2-Amino-6-ethoxy-4-phenylpyridine-3,5-dicarbonitrile 1 reacts with 4,5-dichloro-1,2,3-dithiazolium chloride 2 in the presence of pyridine (2 equiv.) to afford (Z)-2-(4-chloro-5H-1,2,3-dithiazol-5-ylideneamino)-6-ethoxy-4 ...

      Browse

      EverywhereCommunities & CollectionsBy Submission DateAuthorsTitlesSubjectsBy TypeBy DepartmentBy Faculty

      My Account

      Login
      Πνευματικά δικαιώματα ©  Βιβλιοθήκη Πανεπιστημίου Κύπρου
      Contact Us | Send Feedback
      Οδηγίες κατάθεσης διδακτορικής διατριβής
      Open Access
      ORCiD