EFFECT OF STRUCTURAL FACTORS ON THE BASICITIES AND ELECTRONIC SPECTRA OF BETAINE ALDEHYDES OF AZOLES AND YLIDS OF MALONIC ESTERS AND DIMEDONE

Article abstract of DOI:10.1007/BF00499419

Betaine aldehydes of thiazole and imidazole containing substituted pyridinium and isoquinolinium cations were synthesized and their basicities were determined.The effect of the type of charge separation (betaine and ylid) and the nature of the heteroatoms and substituents in the onium and anionoid parts of the molecules on their electronic spectra and basicities was studied; the principles established are presented in the form of linear dependences.