Autori: Alexandru C. Razus, Liviu Birzan, Victorita Tecuceanu, Mihaela Cristea,

Editorial: Rev. Roum, Chim, 52(1-2), p.189-94., 2007.

Rezumat:

(Azulen-1-yl)carboxylic acids 3-substituted by 2-(thiazol-2- or 3-yl)-ethenyl groups and their esters were synthesized starting either from the corresponding 1-azulenyl-2-thiazolyl-ethenes, 3, or from methyl 3-formyl-azulen-1-yl carboxylate, 7. The ethenes 3 were phosgenated in an electrophylic reaction followed by the reaction with water or alcohol. The aldehyde 7 was transformed in Schiff base which was reacted with corresponding thienylacetic acid to generate the ester 6b. The products characterization and considerations about the obtained compounds structure are reported.

Cuvinte cheie: azulena, tiofen, etene, acizi carboxilici // azulene, thiophene, ethenes, carboxylic acids