Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Pier Paolo Righetti"'
Autor:
Sonia Dal Barco, Corrado Tomasi, Eliana Quartarone, Davide Carlo Villa, Pier Paolo Righetti, Simone Angioni, Piercarlo Mustarelli
Publikováno v:
Journal of Materials Chemistry A 2 (2014): 663–671. doi:10.1039/c3ta12200j
info:cnr-pdr/source/autori:Angioni S.; Villa D.C.; Barco S.D.; Quartarone E.; Righetti P.P.; Tomasi C.; Mustarelli P./titolo:Polysulfonation of PBI-based membranes for HT-PEMFCs: A possible way to maintain high proton transport at a low H3PO4 doping level/doi:10.1039%2Fc3ta12200j/rivista:Journal of Materials Chemistry A/anno:2014/pagina_da:663/pagina_a:671/intervallo_pagine:663–671/volume:2
info:cnr-pdr/source/autori:Angioni S.; Villa D.C.; Barco S.D.; Quartarone E.; Righetti P.P.; Tomasi C.; Mustarelli P./titolo:Polysulfonation of PBI-based membranes for HT-PEMFCs: A possible way to maintain high proton transport at a low H3PO4 doping level/doi:10.1039%2Fc3ta12200j/rivista:Journal of Materials Chemistry A/anno:2014/pagina_da:663/pagina_a:671/intervallo_pagine:663–671/volume:2
Polybenzimidazoles are promising materials to replace Nafion(TM) as the electrolyte in HT-PEMFCs. One of their problems is striking the proper balance between the H3PO4 doping level, which controls the proton conductivity, and the long-term stability
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf86eb3b94c244d610eacd94fb81c717
Publikováno v:
European Journal of Organic Chemistry. 1999:1921-1924
The rate constants of the electrocyclic ring closure of (1Z,3Z,5E)-1,2,6-triphenylhexa-1,3,5-triene (1) and of the ring opening of dimethyl 3,4-dimethyl-1,2-diphenylcyclobutene-cis-3,4-dicarboxylate (3) were determined in 15 and 16 solvents, respecti
Publikováno v:
Tetrahedron. 54:6099-6110
The chiral Lewis acid controlled Diels-Alder (CLAC-DA) reaction between cyclopentadiene and 3-acryloyl- or (E)-3-crotonyl-1,3-oxazolidin-2-ones (2a,b), to give the endo adducts 3a,b has been studied. The use of magnesium perchlorate (MP) or magnesium
Publikováno v:
Tetrahedron Letters. 37:3027-3030
the Diels-Alder reaction between cyclopentadiene and 3-acryloyl-1,3-oxazolin-2-one has been found to occur enantioselectively in the presence of catalytic amounts of ( R )-2,2′-isopropylidene-bis(4-phenyl-2-oxazoline) and magnesium perchlorate. Fro
Publikováno v:
Tetrahedron. 50:10955-10962
(E)-2-Oxoindolin-3-ylidene ketones can be easily isomerized to their (Z)-isomers by AlCl3 at room temperature in CH2Cl2. The behaviour of the unsaturated dicarbonyl framework in the (Z)-configuration as a bidentate ligand can be the key-step of the i
Publikováno v:
ChemInform. 26
(E)-2-Oxoindolin-3-ylidene ketones can be easily isomerized to their (Z)-isomers by AlCl3 at room temperature in CH2Cl2. The behaviour of the unsaturated dicarbonyl framework in the (Z)-configuration as a bidentate ligand can be the key-step of the i
Publikováno v:
ChemInform. 27
the Diels-Alder reaction between cyclopentadiene and 3-acryloyl-1,3-oxazolin-2-one has been found to occur enantioselectively in the presence of catalytic amounts of ( R )-2,2′-isopropylidene-bis(4-phenyl-2-oxazoline) and magnesium perchlorate. Fro
Publikováno v:
ChemInform. 29
The chiral Lewis acid controlled Diels-Alder (CLAC-DA) reaction between cyclopentadiene and 3-acryloyl- or (E)-3-crotonyl-1,3-oxazolidin-2-ones (2a,b), to give the endo adducts 3a,b has been studied. The use of magnesium perchlorate (MP) or magnesium
Publikováno v:
Tetrahedron. 47:8399-8406
The lithium perchlorate catalysis of the hetero Diels-Alder reaction between 1-phenyl-4-benzylidene-5-pyrazolone and ethyl vinyl ether was kinetically investigated in five solvents. The rate increases as the salt concentration increases and a linear
Autor:
Giovanni Desimoni, A. Gamba, Gianfranco Tacconi, Pier Paolo Righetti, Lucio Toma, Giuseppe Faita
Publikováno v:
Tetrahedron. 46:2165-2178
The Claisen rearrangement of six homogeneous series of (R,S) or (R,R) 1,4-diaryl-6-isopropenyl-6-methyl-5,6-dihydro-4H-pyran[2,3-c]pyrazoles ( 1–6 ) to give 1,2-dimethyl-5-arylcyclohexene-4-spiro-4′(1′-aryl-5'-pyrazolones) ( 7–12 ) was kineti