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Browsing by Subject "carbon nuclear magnetic resonance"

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    • Article  

      The conversion of 2-(4-chloro-5H-1,2,3-dithiazolylideneamino)benzonitriles into 3-aminoindole-2-carbonitriles using triphenylphosphine 

      Michaelidou, Sophia S.; Koutentis, Panayiotis Andreas (2009)
      2-(4-Chloro-5H-1,2,3-dithiazolylideneamino)benzonitrile 1a reacts with triphenylphosphine (4 equiv) in the presence of water (2 equiv) to afford anthranilonitrile 2a, 3-aminoindole-2-carbonitrile 3a and (2-cyanoindol-3-y ...

    • Article  

      The conversion of isothiazoles into pyrazoles using hydrazine 

      Ioannidou, Heraklidia A.; Koutentis, Panayiotis Andreas (2009)
      The conversion of isothiazoles into pyrazoles on treatment with hydrazine is investigated. The influence of various C-3, C-4 and C-5 isothiazole substituents and some limitations of this ring transformation are examined. ...

    • Article  

      Inhibition of mitogen-activated protein kinase (MAPK) and cyclin-dependent kinase 2 (Cdk2) by platinum(II) phenanthroline complexes 

      Child, E. S.; Georgiades, Savvas N.; Rose, K. N.; Stafford, V. S.; Patel, C. B. K.; Steinke, J. H. G.; Mann, D. J.; Vilar, R. (2011)
      Inhibition of protein kinases in the fight against disease remains a constant challenge for medicinal chemists, who have screened multitudes of predominantly planar organic scaffolds, natural and synthetic, to identify ...

    • Article  

      A new [2 + 2] functionalization of C60 with alkyl-substituted 1,3- butadienes: A mechanistic approach. Stereochemistry and isotope effects 

      Vassilikogiannakis, G.; Chronakis, Nikos; Orfanopoulos, Michael (1998)
      The stereochemistry and secondary isotope effects of the [2 + 2] photocycloaddition of trans,trans- (7), cis,cis- (8), and cis,trans-2,4- hexadiene (9), 2,5-dimethyl-2,4-hexadiene (1), and its deuterated analogues 1-d1, ...

    • Article  

      Novel mixed metal Ag(I)-Sb(III)-metallotherapeutics of the NSAIDs, aspirin and salicylic acid: Enhancement of their solubility and bioactivity by using the surfactant CTAB 

      Gkaniatsou, E. I.; Banti, Christina N.; Kourkoumelis, Nikolaos; Skoulika, S.; Manoli, Maria; Tasiopoulos, Anastasios J.; Hadjikakou, Sotiris K. (2015)
      The already known Ag(I)-Sb(III) compound of the formula {Ag(Ph3Sb)3(NO3)} (1) and two novel mixed metal Ag(I)-Sb(III) metallotherapeutics of the formulae {Ag(Ph3Sb)3(SalH)}(2) and {Ag(Ph3Sb)3(Asp)}(3) (SalH2 = salicylic ...

    • 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  

      Reinvestigating the reaction of 1H-pyrazol-5-amines with 4,5-dichloro-1,2,3-dithiazolium chloride: A route to pyrazolo[3,4-c]isothiazoles and pyrazolo[3,4-d]thiazoles 

      Koyioni, Maria G.; Manoli, Maria; Manolis, M. J.; Koutentis, Panayiotis Andreas (2014)
      The reaction of Appel salt 1 with 1H-pyrazol-5-amines 2 gives main products N-(4-chloro-5H-1,2,3-dithiazol-5-ylidene)-1H-pyrazol-5-amines 3, and 6H-pyrazolo[3,4-c]isothiazole-3-carbonitriles 5, together with several minor ...

    • Article  

      Reinvestigating the synthesis of N-arylbenzamidines from benzonitriles and anilines in the presence of AlCl3 

      Koutentis, Panayiotis Andreas; Mirallai, Styliana I. (2010)
      The preparation of N-phenylbenzamidine 3a from the reaction between benzonitrile Ia and aniline in the presence of AId3 is reinvestigated with respect to mode of reagent addition, reaction temperature and Lewis acid ...

    • Article  

      The synthesis of 2-cyano-cyanothioformanilides from 2-(4-Chloro-5H-1,2,3- dithiazol-5-ylideneamino)benzonitriles using DBU 

      Michaelidou, Sophia S.; Koutentis, Panayiotis Andreas (2009)
      A series of 2-(4-chloro-5H-1,2,3-dithiazol-5-ylideneamino) benzonitriles were prepared from the reaction of 4,5-dichloro-1,2,3-dithiazolium chloride (Appel salt) and the corresponding anthranilonitriles. Reaction of the ...

    • Article  

      Synthesis, characterization and biological studies of new antimony(III) halide complexes with ω-thiocaprolactam 

      Ozturk, I. I.; Banti, Christina N.; Manos, Manolis J.; Tasiopoulos, Anastasios J.; Kourkoumelis, Nikolaos; Charalabopoulos, Konstantinos A.; Hadjikakou, Sotiris K. (2012)
      Three new antimony(III) halide complexes (SbX 3, X = Cl, Br and I) with the heterocyclic thione ω-thiocaprolactam (1-azacycloheptane-2- thione, (Hthcl)) of formulae {[SbCl 2(μ 2-Cl)(Hthcl) 2] n} (1), {[(SbBr 2(μ 2-Br)(Hthcl) ...

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