Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Stefano Chimichi"'
Publikováno v:
ChemistrySelect. 3:2235-2239
Autor:
M. Angeles Bonache, Mario Chelli, Feliciana Real-Fernández, Marco Boccalini, Stefano Chimichi, Anna Maria Papini, Francesca Nuti
Publikováno v:
Amino Acids. 39:599-604
The synthesis of N-protected glycosyl amino acids from amines has been investigated and it was found that, under microwave conditions, glycosylamines could be hydrolyzed leading to new products containing a glycosyl ester linkage. The efficiency of t
Autor:
Konstantin S. Usachev, Alessandra Matteucci, A. A. Balandina, Stefano Chimichi, Shamil K. Latypov, Marco Boccalini
Publikováno v:
European Journal of Organic Chemistry. 2008:4640-4646
The combined use of 2D NMR correlation experiments and GIAO DFT 13C NMR chemical shift calculations has allowed a reliable and simple structural determination of regioisomeric heterocyclic systems that originate from the reactions of quinolinone or c
Publikováno v:
Tetrahedron. 64:9275-9279
Reaction of 3-acyl-4-methoxy-1-methylquinolinones 2 and 5 with hydrazines has been investigated under different experimental conditions. Compound 2 always gave rise selectively and exclusively to the regioisomeric 1,3-disubstituted- or 2,3-disubstitu
Publikováno v:
Letters in Drug Design & Discovery. 5:93-103
Publikováno v:
Tetrahedron. 63:11656-11660
Reaction of 3-acyl-4-methoxy-1-methylquinolinones 2a,b with hydroxylamine has been investigated under different experimental conditions. Whereas compound 2a gives rise selectively and exclusively to the regioisomeric isoxazolo[4,5-c]- or isoxazolo[4,
Autor:
Mohamed M.M. Hassan, Giampietro Viola, Massimo Curini, Francesco Dall'Acqua, Stefano Chimichi, Marco Boccalini
Publikováno v:
Tetrahedron. 62:90-96
A convenient route to new 3-quinolinonyl-pyrazoles and isoxazoles is described through cyclization of 3-[( E )-3-(dimethylamino)-2-propenoyl]-4-hydroxy-1-methyl-2(1 H )-quinolinone. The phototoxicity as well as the cytotoxic activities of the title c
Publikováno v:
Tetrahedron Letters. 44:8383-8386
Monoalkylation of natural dihydroxycoumarins was carried out by Mitsunobu dehydroalkylation under sonochemical conditions. Aesculetin (6,7-dihydroxycoumarin) was selectively alkylated in good yield with prenyl alcohols at position 7, as clearly shown