Zobrazeno 1 - 10
of 131
pro vyhledávání: '"Alessandro Bongini"'
α-Alkyl-α-aryl (Trimethyltin) Nitriles: Versatile Nucleophilic Intermediates in Aldol-Like Reactions
Publikováno v:
European Journal of Organic Chemistry. 2015:3495-3505
α-Alkyl-α-aryl (trimethyltin) nitriles react spontaneously with aldehydes and ketones in THF/toluene to give β-hydroxy nitriles with satisfactory to good yields and diastereoselectivity. No extra catalyst is required in this aldol-like reaction. A
Publikováno v:
Synthesis. 44:3191-3196
A catalyst-free method for the amidation of N-trimethylsilyl ketene imines using isocyanates is reported. A working hypothesis on the reaction pathway includes silatropism from the ketene nitrogen to the isocyanate oxygen as the driving force of the
Publikováno v:
Journal of Physical Organic Chemistry. 25:132-141
The ammonolysis of three morpholine-2,5-dione derivatives was investigated and the mechanism ascertained by kinetic studies and theoretical calculations. The kinetics, followed by high-performance liquid chromatography analysis, evidenced the presenc
Publikováno v:
Chemistry (Weinh., Print) 17 (2011): 7947–7952. doi:10.1002/chem.201100142
info:cnr-pdr/source/autori:Sotgiu, G; Galeotti, M; Samori, C; Bongini, A; Mazzanti, A/titolo:Push-Pull Amino Succinimidyl Ester Thiophene-Based Fluorescent Dyes: Synthesis and Optical Characterization/doi:10.1002%2Fchem.201100142/rivista:Chemistry (Weinh., Print)/anno:2011/pagina_da:7947/pagina_a:7952/intervallo_pagine:7947–7952/volume:17
info:cnr-pdr/source/autori:Sotgiu, G; Galeotti, M; Samori, C; Bongini, A; Mazzanti, A/titolo:Push-Pull Amino Succinimidyl Ester Thiophene-Based Fluorescent Dyes: Synthesis and Optical Characterization/doi:10.1002%2Fchem.201100142/rivista:Chemistry (Weinh., Print)/anno:2011/pagina_da:7947/pagina_a:7952/intervallo_pagine:7947–7952/volume:17
The design and synthesis of new fluorescent dyes with emission range at 490-650 nm are described. Their structural and electronic properties have been characterized by both experimental techniques and quantum-chemical calculations. The chromophores a
Publikováno v:
ChemInform. 46
Trimethyltin nitriles either generated in situ or introduced directly readily react with carbonyl compounds to yield β-hydroxynitriles.
An uncatalyzed aldol-type reaction of aromatic N-trimethylsilyl ketene imines with O-protected -trialkylsilyloxy or -benzyloxy aldehydes is reported. It is shown that N-trimethylsilyl ketene imines (SKIs) are essential for the success of this aldol-t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______4094::5773dab6a68c5ee0f5cfb657aa4f30ae
http://hdl.handle.net/11585/191569
http://hdl.handle.net/11585/191569
Autor:
Marco Anni, Alberto Zanelli, Alessandro Bongini, Giovanna Barbarella, Marco Mazzeo, Laura Favaretto, Giuseppe Gigli
Publikováno v:
Advanced functional materials
15 (2005): 664–670. doi:10.1002/adfm.200400172
info:cnr-pdr/source/autori:G. Barbarella, L. Favaretto, A. Zanelli, G. Gigli, M. Mazzeo, M. Anni, A. Bongini/titolo:V-Shaped Thiophene-Based Oligomers with Improved Electroluminescence Properties/doi:10.1002%2Fadfm.200400172/rivista:Advanced functional materials (Print)/anno:2005/pagina_da:664/pagina_a:670/intervallo_pagine:664–670/volume:15
15 (2005): 664–670. doi:10.1002/adfm.200400172
info:cnr-pdr/source/autori:G. Barbarella, L. Favaretto, A. Zanelli, G. Gigli, M. Mazzeo, M. Anni, A. Bongini/titolo:V-Shaped Thiophene-Based Oligomers with Improved Electroluminescence Properties/doi:10.1002%2Fadfm.200400172/rivista:Advanced functional materials (Print)/anno:2005/pagina_da:664/pagina_a:670/intervallo_pagine:664–670/volume:15
The synthesis via the Stille coupling of a new family of oligomers derived from benzo[b]thiophene is reported. Owing to their branched molecular structure lacking any symmetry element, these compounds display a low tendency to crystallization and bet
Publikováno v:
Tetrahedron. 60:8347-8356
Reaction of a wide variety of aldehydes with the easily prepared 2-azadienes, in the presence of BF3 etherate, furnishes the corresponding hetero Diels–Alder adducts which have been converted, mainly, to cis epoxides via N-Boc protection followed b
Autor:
Massimo Zambianchi, Alessandro Bongini, Giovanna Sotgiu, Daniele Casarini, Laura Favaretto, Giovanna Barbarella
Publikováno v:
Tetrahedron (Oxf., Print) 58 (2002): 10151–10158. doi:10.1016/S0040-4020(02)01398-4
info:cnr-pdr/source/autori:Bongini A., Barbarella G., Favaretto L., Sotgiu G., Zambianchi M., Casarini D./titolo:Conformational profile, energy barriers and optical properties of quinquethiophene-S, S-dioxides/doi:10.1016%2FS0040-4020(02)01398-4/rivista:Tetrahedron (Oxf., Print)/anno:2002/pagina_da:10151/pagina_a:10158/intervallo_pagine:10151–10158/volume:58
info:cnr-pdr/source/autori:Bongini A., Barbarella G., Favaretto L., Sotgiu G., Zambianchi M., Casarini D./titolo:Conformational profile, energy barriers and optical properties of quinquethiophene-S, S-dioxides/doi:10.1016%2FS0040-4020(02)01398-4/rivista:Tetrahedron (Oxf., Print)/anno:2002/pagina_da:10151/pagina_a:10158/intervallo_pagine:10151–10158/volume:58
Theoretical calculations, dynamic NMR experiments and absorption and photoluminescence data in solution are reported for a series of quinquethiophene S,S-dioxides substituted with alkyl groups of variable size and steric hindrance. Ab initio B3LYP/6-
Autor:
R. Bizzarri, Ilaria Elena Palamà, Giovanna Barbarella, Massimo Baroncini, Giuseppe Gigli, Andrea Barbieri, Alessandro Bongini, F. Di Maria
Publikováno v:
Organic & biomolecular chemistry 12 (2014): 1603–1610. doi:10.1039/c3ob41982g
info:cnr-pdr/source/autori:Di Maria F.[ 1,2 ] ; Palama I.E.[ 3 ] ; Baroncini M.[ 4 ] ; Barbieri A.[ 2 ]; Bongini A.[ 4 ]; Bizzarri R.[ 5 ]; Gigli G.[ 4,6 ]; Barbarella G.[ 2,7 ]/titolo:Live cell cytoplasm staining and selective labeling of intracellular proteins by non-toxic cell-permeant thiophene fluorophores/doi:10.1039%2Fc3ob41982g/rivista:Organic & biomolecular chemistry/anno:2014/pagina_da:1603/pagina_a:1610/intervallo_pagine:1603–1610/volume:12
info:cnr-pdr/source/autori:Di Maria F.[ 1,2 ] ; Palama I.E.[ 3 ] ; Baroncini M.[ 4 ] ; Barbieri A.[ 2 ]; Bongini A.[ 4 ]; Bizzarri R.[ 5 ]; Gigli G.[ 4,6 ]; Barbarella G.[ 2,7 ]/titolo:Live cell cytoplasm staining and selective labeling of intracellular proteins by non-toxic cell-permeant thiophene fluorophores/doi:10.1039%2Fc3ob41982g/rivista:Organic & biomolecular chemistry/anno:2014/pagina_da:1603/pagina_a:1610/intervallo_pagine:1603–1610/volume:12
A structurally correlated series of cell-permeant thiophene fluorophores, characterized by intense green or red fluorescence inside live mouse embryonic fibroblasts, was developed. The fluorophores displayed rapid internalization, excellent retention
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1dad901c502beb794ccea512e9b3554f
https://hdl.handle.net/11587/391253
https://hdl.handle.net/11587/391253