A low-molecular-weight organogelator derived from (L)-amino acids was designed and synthesized. The (L)-alanine derivatives were determined to be excellent gelators, forming good gels even when smaller amounts were added. Self-molecular aggregates were observed to be helical or sheet-like, and the gels were constructed by forming aggregates by self-molecular recognition.
Bisamidation of oxalyl chloride using four L-alpha-amino acid esters afforded chiral diesters which were reacted with three alpha,omega-diainines under high-pressure conditions (10 kbar) to give macrocyclic tetramides of C-2-symmetry. (C) 2002 Published by Elsevier Science Ltd.
Synthesis, self-assembly, bacterial and fungal toxicity, and preliminary biodegradation studies of a series of<scp>l</scp>-phenylalanine-derived surface-active ionic liquids
作者:Illia V. Kapitanov、Andrew Jordan、Yevgen Karpichev、Marcel Spulak、Lourdes Perez、Andrew Kellett、Klaus Kümmerer、Nicholas Gathergood
DOI:10.1039/c9gc00030e
日期:——
imidazolium, and cholinium groups and enabled a comprehensive analysis of the effect of the alkyl esterchain (from C2 to C16) on the synthesis, toxicity, biodegradability, and surfactant properties of the novel SAILs. The evaluation of the SAILs revealed that a wide variety of properties were strictly dependent on the side chainlength, including their bacterial and fungal toxicities (from low toxicity to