Zobrazeno 1 - 10
of 360
pro vyhledávání: '"Elisabet Duñach"'
Publikováno v:
Flavour and Fragrance Journal. 37:63-71
Autor:
Théophile Fonkou, Azefack Leon Tapondjou, Elisabet Duñach, Armel Jackson Seukep, Gueaba Helene Mbuntcha, Hilaire Macaire Womeni, Christine Schippa, Verlaine Woguem, Dongmo Hervet Paulin Fogang
Publikováno v:
Cameroon Journal of Experimental Biology; Vol. 14 No. 2 (2020); 24-34
Background: The current study examined the chemical profile and in vitro antibacterial activity of essential oils (EOs) extracted from Aframomum danielli (leaves and seeds), Aframomum chlamydentum (leaves), and Aframomum melegueta (leaves) against fo
Publikováno v:
RSC Advances. 11:21066-21072
A series of highly functionalized carbocycles was efficiently prepared via the selective cyclisation of unsaturated acetals and ketals in the presence of only 1 mol% of Bi(III) or Fe(III) triflates as the catalysts at room temperature, with yields ra
Publikováno v:
ChemPlusChem. 87(6)
Metal triflates have shown a large variety of possibilities as catalysts in organic reactions. Some selected examples of their catalytic activity, in particular in C-O and C-C bond formation are presented. A better understanding of the mode of intera
Publikováno v:
New Journal of Chemistry. 44:10479-10483
Several oxaspirocyclic ethers were prepared under heterogeneous catalytic conditions from polyfunctional alcohols with tethered olefinic double bonds. Good yields and efficient catalyst recycling tests were obtained with Amberlyst-15.
Autor:
Sophie Poulain-Martini, Elisabet Duñach, Samia Achouche-Bouzroura, Fabien Fontaine-Vive, Naouel Boufroua
Publikováno v:
New Journal of Chemistry. 44:6042-6052
We developed an easy, In(OTf)3-catalysed, regioselective and generalizable method, for allylation/cyclization of β-ketolactone-type heterocyclic compounds. This reaction is proposed to proceed one-pot, through a Friedel–Crafts C-allylation followe
Autor:
Bellara Nedjar-Kolli, Elisabet Duñach, Rosa Nechak, Sophie Poulain-Martini, Samia Achouche-Bouzroura, Chérifa Rabia, Lydia Salhi, Hocine Merazig
Publikováno v:
Synthetic Communications. 50:412-422
New dihydroimidazo[1,2-a]pyridines and 4-thiazolidinone derivatives have been synthesized by condensation reaction of substituted maleimide with 2,3-diaminopyridine or thiosemicarbazone under neutr...
Publikováno v:
RSC advances. 11(34)
A series of highly functionalized carbocycles was efficiently prepared
Autor:
Rosa Nechak, Yamina Benmalek, Naouel Boufroua, Sophie Poulain Martini, Bellara Nedjar Kolli, Samia Achouche Bouzroura, Elisabet Duñach
Publikováno v:
Synthetic Communications. 49:1895-1905
The reaction of thiosemicarbazones with various α-chloroketones in the presence of anhydrous NaOAc led to 4-thiazolines 5, 7 or 1,3,4-thiadiazines 11 in good yields. Structure elucidation was carri...
Publikováno v:
Analytical Chemistry. 91:1773-1778
Energy dispersive X-ray spectrometry (EDX or EDS) is a technique often implemented on scanning electron microscopes and a regularly used method for qualitative characterization of solid catalysts. This Technical Note reports a method for the determin