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    STUDIA CHEMIA - Issue no. 3 / 2010  
         
  Article:   MICROWAVES ASSSITED CYCLOADITION REACTIONS OF UNSATURATED PHENOTHIAZINE DERIVATIVES.

Authors:  EMESE GÁL, LUIZA GĂINĂ, CASTELIA CRISTEA, LUMINIŢA SILAGHI-DUMITRESCU.
 
       
         
  Abstract:  

Microwaves assisted azaDiels-Alder cycloaddition reactions using aromatic and heteroaromatic Schiff bases as heterodienes and 3,4-dihydro-2H-pyrane (DHP) as dienophyle in the presence of iodine catalyst, afforded stable cycloaddition adducts, as well as their oxidation products. The structures of the new hexahydro-2H-pyrano[3,2-c]quinoline and 3-(3-hydroxypropyl)-quinoline derivatives were assigned based on spectroscopic methods (high resolution NMR and mass spectrometry).

Keywords: Phenothiazine, Ferrocene, aza-Diels-Alder cycloaddition, Schiff base, 3,4-dihydro-2H-pyrane.

 
         
     
         
         
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