Zobrazeno 1 - 10
of 114
pro vyhledávání: '"Enrico Mincione"'
Publikováno v:
Tetrahedron Letters. 50:1307-1310
A useful and novel application of polymer-supported IBX for the chemoselective and regioselective oxidation of phenolic compounds has been described. Hydroxytyrosol and carboxymethylated hydroxytyrosol have been prepared in good conversions and yield
Publikováno v:
Journal of Agricultural and Food Chemistry. 56:8897-8904
Hydroxytyrosol, a naturally occurred o-phenolic compound exhibiting antioxidant properties, was synthesized by a three-step high-yielding procedure from natural and low-cost compounds such as tyrosol or homovanillyl alcohol. First, the efficient chem
Autor:
Enrico Mincione, Marcella Pasqualetti, Sabrina Tempesta, Gianfranco Provenzano, Roberta Bernini, Giancarlo Fabrizi
Publikováno v:
Tetrahedron. 64:7561-7566
New 3-hydroxy-2-methoxyflavanones have been obtained through epoxidation–methanolysis of the corresponding flavone with urea–hydrogen peroxide (UHP)/methyltrioxorhenium (CH 3 ReO 3 , MTO) catalytic system in methanol as nucleophilic solvent. Afte
Autor:
Enrico Mincione, Maurizio Barontini, Patrizia Gentili, Fernanda Crisante, Giancarlo Fabrizi, Roberta Bernini
Publikováno v:
Tetrahedron Letters. 48:7000-7003
The efficiency of dimethyl carbonate (DMC) as chemoselective carbomethoxylating agent of the alcoholic chain of phenols has been investigated. In the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) or sulfuric acid as catalysts, new carbomethoxy
Autor:
Sabrina Tempesta, Maurizio Barontini, Marcella Pasqualetti, Roberta Bernini, Enrico Mincione, Giancarlo Fabrizi
Publikováno v:
Tetrahedron. 62:7733-7737
Alkylated phenol and methoxytoluene derivatives were catalytically and selectively oxidized to the corresponding 1,4-benzoquinones in good conversions and yields. Reactions were performed with hydrogen peroxide (H2O2)/methyltrioxorhenium (CH3ReO3) in
Autor:
Gianfranco Battistuzzi, Antonietta Coratti, Roberta Bernini, Enrico Mincione, Giancarlo Fabrizi
Publikováno v:
Tetrahedron. 60:967-971
A convenient and efficient procedure for the epoxidation of chromone, isoflavone, and chalcone derivatives using 1-butyl-3-methyl imidazolium tetrafluoroborate [bmim]BF 4 as solvent and alkaline hydrogen peroxide as oxidant is described. All reaction
Publikováno v:
Tetrahedron. 59:7403-7408
A convenient and efficient synthesis of monoterpene epoxides by application of heterogeneous poly(4-vinylpyridine)/methyl rhenium trioxide (PVP/MTO) and polystyrene/methyl rhenium trioxide (PS/MTO) systems is described. Even highly sensitive terpenic
Publikováno v:
Pure and Applied Chemistry. 75:265-272
A convenient and efficient application of microencapsulated/methylrhenium trioxide (MTO) and MTO/pyridine systems for the selective oxidation of cardanol derivatives is reported. Environmentally friendly and low-cost H2O2 was used as the oxygen atom
Publikováno v:
Tetrahedron letters 43 (2002): 5563–5567. doi:10.1016/S0040-4039(02)01117-6
info:cnr-pdr/source/autori:Bovicelli P., Bernini R., Antonioletti R., Mincione E./titolo:Selective halogenation of flavanones/doi:10.1016%2FS0040-4039(02)01117-6/rivista:Tetrahedron letters/anno:2002/pagina_da:5563/pagina_a:5567/intervallo_pagine:5563–5567/volume:43
info:cnr-pdr/source/autori:Bovicelli P., Bernini R., Antonioletti R., Mincione E./titolo:Selective halogenation of flavanones/doi:10.1016%2FS0040-4039(02)01117-6/rivista:Tetrahedron letters/anno:2002/pagina_da:5563/pagina_a:5567/intervallo_pagine:5563–5567/volume:43
A mild, efficient and regioselective method for the selective halogenation of flavonoids is presented. Halogenated flavanones and flavones are considered potential benzodiazepine receptor ligands and with DMD/NaX or oxone/acetone/water/NaX systems th
Autor:
Enrico Mincione, Roberta Bernini, Giovanni Aliotta, Raffaele Saladino, Manuela Cortese, Anna Oliva
Publikováno v:
Tetrahedron Letters. 42:5401-5404
The catalytic Baeyer–Villiger rearrangement of flavanones is described by the use of the homogeneous methyltrioxorhenium (MTO)/H2O2 system. In these experimental conditions 3,4-dihydro-4-phenyl-1,5-benzodioxepin-2-ones and previously not reported p