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Cholesteryl derivatives with a sulfonyl moiety

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Carmen Topalã, Miron T. Cãproiu, Constantin Drãghici

Editorial: Arkivoc, x, p.63-70, 2005.

Rezumat:

Cholesteryl carbamates were prepared by reaction of cholesterylchloroformate with phenylsulfonylanilines, in the presence of pyridine as acid acceptor. The thermodynamic properties of cholesteryl derivatives were characterized by DSC and the texture of the mesophases have been determined with a hot stage equipped polariying microscope. The relative thermal stabilities and the variation on the mesomorphic characteristics also have been studied.

Cuvinte cheie: difenilsulfona, carbamaţi colesterici, mezogen, temperaturã de tranziţie // diphenylsulfonyl, cholesteryl carbamates, mesogen, transition temperature