Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Guita Etemad-Moghadam"'
Publikováno v:
Journal of Colloid and Interface Science. 273:512-516
Monolayers of amphiphilic (alpha-amino)phosphonocarboxylic and (alpha-amino)phosphonic acids have been formed by adsorption at the air/water interface. The influence of both the ionic strength and the pH of the subphase on the stability and compactne
Publikováno v:
Langmuir. 19:6678-6684
New phosphorous catanionic amphiphiles were easily prepared by an acid−base reaction between (α-hydroxyalkyl)-phosphinic or -phosphonic acid and cethyltrimethylammonium hydroxide. In this way, we obtained, in nearly quantitative yields, bicatenary
Autor:
Guita Etemad-Moghadam, Karine Vercruysse-Moreira, Christophe Déjugnat, Fatima Al Ali, Isabelle Rico-Lattes
Publikováno v:
Langmuir. 18:10168-10175
We have studied the surfactant properties of a series of single- and double-chain (a-aminoalkyl)-phosphonocarboxylic- and (a-aminoalkyl)-phosphonic acid amphiphiles, prepared in nearly quantitative yields by one-pot selective hydrolysis of the mixtur
Autor:
Guita Etemad-Moghadam, Alice Brun
Publikováno v:
Synthesis. :1385-1390
New double-chain bis-(α-hydroxyalkyl)phosphinic acids 1 are synthesized from NaH 2 PO 2 .H 2 O and aliphatic aldehydes. Direct and quantitative one-pot synthesis of new 4-alkoxybenzaldehydes 2 is realized from 1-bromoalkanesand 4-hydroxybenzaldehyde
Publikováno v:
Langmuir. 17:5208-5215
A new series of (α-hydroxyalkyl)phosphinic acids 1 was prepared in good yields from long-chain aldehydes (C8−C18) and 50% aqueous hypophosphorous acid under sonication. Oxidation of these phosphinic acids by dimethyl sulfoxide in the presence of c
Publikováno v:
European Journal of Organic Chemistry. 1999:861-868
The reactivity of red phosphorus towards aldehydes was investigated under basic and acidic media. It was demonstrated that the real phosphorylating agent involved in the reaction was phosphane (PH3) in basic media, and hypophosphorous acid (H3PO2) in
Publikováno v:
Main Group Chemistry. 2:37-41
In the diphosphirane series, the substitution of one aryl group (2,4,6-tri-tert-butyl‐phenyl) by a chlorine atom leading to the trans P‐chloro-diphosphirane via the cis isomer intermediate can be readily realized in chlorinated solvent under soni
Publikováno v:
Scopus-Elsevier
The synthesis of ortho-substituted benzoic acid 3 from benzalphthalide 1 in the presence of ‘hydriodic acid—red phosphorus’ (HIaq/Pred) occurs via the formation of benzylphthalide 2 as reaction intermediate. Its preparation is optimized by use
Publikováno v:
Tetrahedron Letters. 37:3109-3112
The bis-allylic 1 and the bis-propargylic 6 derivatives react with the zirconocene “ZrCp2” and lead, after electrophilic addition, to the corresponding chiral trans heterocyclopentanes (MSi,Ge,P) 3–5 and bis-methylenecyclopentanes 8. New chi
Autor:
Max Koenig, Guita Etemad-Moghadam, Anne Zaparucha, Jacques Berlan, Maryam Mirza-Aghayan, André Loupy
Publikováno v:
Tetrahedron: Asymmetry. 6:2643-2646
Ultrasound irradiation enhances the rate and improves the yield of the heterogeneous asymmetric Michael reaction without any modification of the enantioselectivity with respect to standard procedure. These improvements are assigned to ultrasonic mech