Reactions of 2,3-diferrocenylcyclopropenilium salts with bis-1,4-N,O-nucleophiles: Novel synthesis, characterization, chemical and electrochemical properties of the 2-(Z-1,2-diferrocenylvinyl)- 4,5-dihydrooxazole derivatives

Method of synthesis of 2-(Z-1,2-diferrocenylvinyl)-4,5-dihydrooxazoles and 2-(Z-1,2-diferrocenylvinyl)-4,5-dihydrooxazol-3-ium salts, by reactions of 2,3-diferrocenylcyclopropenylium salts with 1,2-amino- and 1,2-N-alkylaminoalcohols in the presence of Et3N. The interactions of the salts with morpholine and piperidine results in the corresponding (E)-2-[(N-2′,3'-diferrocenylacryloyl-2-(N-alkyl)amino]ethylmorpholines and piperidines.201