Obtention d'isothiocyanates polyfluoroalkylés par réaction d'isomérisation: leurs réactions sur les amines
作者:H. Trabelsi、M.A. Jouani、A. Cambon
DOI:10.1016/0022-1139(96)03473-2
日期:1996.7
New polyfluoroalkylated isothiocyanates have been synthesized. They are obtained by isomerisation in satisfactory yields. Condensation of these compounds with diamines is reported.
The synthesis of amphoteric F-alkylated bitailed surfactantsderivedfrom new β-aminoacid intermediates is described. N-alkyl N-benzyl amines or N-alkyl N-methyl amines are added to acrylic acid. The β-amino acids obtained are quaternized by 2-F-alkyl ethyl acetates or thioacetate bromides to produce the F-alkylated double-chain carboxybetaı̈nes.
Synthése de nouveaux intermédiaires F-alkyles précurseurs de tensioactifs cationiques hautement fluorés
作者:A. Sismondi、P. Abenin、L. Joncheray、A. Cambon
DOI:10.1016/s0022-1139(00)80210-9
日期:1992.10
The syntheses of F-alkyl compounds such as(~)[GRAPHICS](~)(where R(F) = C4F9, C6F13, C8F17 and Q = S, O, NH) by the reaction of bromoacetyl bromide with an F-alkyl compound such as RFC2H4QH are reported. These compounds show high reactivity with nucelophilic substrates. They are intended for use as precursors of surfactants or as precursors of monomers for the elaboration of artificial vesicles.
Preparation and antimicrobial behaviour of gemini fluorosurfactants
The introduction of perfluorinated chains in the molecular structure of quaternary ammonium gemini surfactants have led to particularly active antimicrobial agents evaluated in this work. Connectors and spacers were studied in relation with antimicrobial activity in order to determine which molecular parameters are 'critical' for biological activity. (C) 2003 Editions scientifiques et medicales Elsevier SAS. All rights reserved.
Synthèse de 3-[2F-alkyléthylamino]-1,2-époxypropanes et obtention de nouveaux tensioactifs mono ou bicaténaires à tête β-hydroxylée
作者:P.S. Abenin、F. Szönyi、A. Cambon
DOI:10.1016/s0022-1139(00)81248-8
日期:1991.11
In this paper we report the synthesis of new intermediates of the type 3-[2-F-alkyl-ethylamino]-1,2-epoxypropanes which lead simply and with good yields to a large range of fluorinated monotailed, bitailed and hydrogenated/fluorinated bitailed surfactants having a secondary amino group and at least one hydroxy group. Evaluation of their surface properties has allowed the contribution of each hydrophobic tail contained in the hydrogenated and fluorinated bitailed molecules to be demonstrated.