91102-90-8Relevant academic research and scientific papers
Kinetics of photochemical isomerization of TFA-Gly-ZΔPhe into TFA-Gly-EΔPhe
Makowski, Maciej,Jewgiński, Micha?,Hurek, Józef,Poliwoda, Anna,Kafarski, Pawe?
, p. 88 - 94 (2021)
The kinetics of photoisomerization of trifluoroacetyl-(Z)-dehydrophenylalanylglycine into trifluoroacetyl-(E)dehydrophenylalanylglycine was studied in the hope that light-induced reaction could be useful as a means of preparation of the E-dehydropeptides. The obtained results indicate that if this reaction carried out under irradiation with light of wavelength 360 nm it is practically irreversible and gave nearly quantitatively pure Eisomer Significantly, expected cyclic side-products were not observed in the reaction mixture, thus proving the preparative potential of the elaborated procedure.
Kinetics of photochemical isomerization of TFA-Gly-ZΔPhe into TFA-Gly-EΔPhe
Makowski, MacIej,Jewgiński, Michal,Hurek, Józef,Poliwoda, Anna,Kafarski, Pawe?
, p. 88 - 94 (2017/06/19)
The kinetics of photoisomerization of trifluoroacetyl-(Z)-dehydrophenylalanylglycine into trifluoroacetyl-(E)-dehydrophenylalanylglycine was studied in the hope that light-induced reaction could be useful as a means of preparation of the E-dehydropeptides. The obtained results indicate that if this reaction carried out under irradiation with light of wavelength 360 nm it is practically irreversible and gave nearly quantitatively pure E-isomer Significantly, expected cyclic side-products were not observed in the reaction mixture, thus proving the preparative potential of the elaborated procedure. {figure presented}.
Synthesis of Peptides with α,β-Dehydroamino Acids, I. - Synthesis of N-Benzyloxycarbonyl and N-Trifluoroacetyl Dipeptides of Dehydroalanine and Dehydrophenylalanine
Makowski, Maciej,Rzeszotarska, Barbara,Kubica, Zbigniew,Wieczorek, Piotr
, p. 920 - 928 (2007/10/02)
Condensation of amides of N-(benzyloxycarbonyl)- and N-(trifluoroacetyl)amino acid with pyruvic and phenylpyruvic acid yields, in the presence of p-toluenesulfonic acid as a catalyst, N-(benzyloxycarbonyl)- and N-(trifluoroacetyl)dehydro dipeptides with C
