Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Cristina Tomassini"'
Autor:
Cristina Tomassini, Francesca Di Sarra, Bonifacio Monti, Luca Sancineto, Luana Bagnoli, Francesca Marini, Claudio Santi
Publikováno v:
ARKIVOC, Vol 2017, Iss 2, Pp 303-312 (2016)
Externí odkaz:
https://doaj.org/article/839b4eaadbc2435b91a982400ea75cf6
Publikováno v:
CHIMIA, Vol 71, Iss 9 (2017)
In this account, we describe how some organic diselenides were successfully used in the past as reagents for asymmetric stereoselective synthesis and more recently as precursors of catalysts and reagents applied in new green protocols. A biomimetic a
Externí odkaz:
https://doaj.org/article/20a4a859c7414ba3b2ae1e392afcba2b
Autor:
Marcello Tiecco, Lorenzo Testaferri, Luana Bagnoli, Francesca Marini, Claudio Santi, Andrea Temperini, Catalina Scarponi, Silvia Sternativo, Raffaella Terlizzi, Cristina Tomassini
Publikováno v:
ARKIVOC, Vol 2006, Iss 7, Pp 186-206 (2006)
Externí odkaz:
https://doaj.org/article/2a66d0b116234cae96588fbeae14bef5
Autor:
Claudio Santi, Cristina Tomassini, Bonifacio Monti, Francesca Marini, Francesca Di Sarra, Luca Sancineto, Luana Bagnoli
Publikováno v:
ARKIVOC, Vol 2017, Iss 2, Pp 303-312 (2016)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2e0f1b53ed42e312d8ec41e808b4be9
http://hdl.handle.net/11391/1403161
http://hdl.handle.net/11391/1403161
Autor:
Claudio Santi, Lorenzo Testaferri, Marcello Tiecco, Stefano Santoro, Cristina Tomassini, G. Bizzoca
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 183:956-960
Here we report the first example in which the phenylseleno group is directly substituted by a hydroxy function. The reaction is promoted by the PhSeOSO 3 H generated “in situ” by oxidation of (PhSe...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e2f68cde324b3e20152fa003435a019
https://doi.org/10.1080/10426500801900881
https://doi.org/10.1080/10426500801900881
Autor:
Marcello Tiecco, Lorenzo Testaferri, Ferdinando Costantino, Francesca Marini, Luana Bagnoli, Stefano Santoro, Cristina Tomassini, Claudio Santi, Andrea Temperini
Publikováno v:
European Journal of Organic Chemistry. 2006:4867-4873
Chiral sulfur-containing electrophilic selenium reagents can be employed to effect efficient asymmetric syntheses. Spectroscopic and chemical evidence demonstrate that the observed high selectivity of the asymmetric reactions is associated with a non
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56e04de23ce2fde743463c1ffc53fe94
https://doi.org/10.1002/ejoc.200600517
https://doi.org/10.1002/ejoc.200600517
Autor:
Lorenzo Testaferri, Luana Bagnoli, Andrea Temperini, Claudio Santi, Marcello Tiecco, Francesca Marini, Cristina Tomassini
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 180:1071-1075
The first example of a kinetic resolution process promoted by an electrophilic selenium reagent is reported. Racemic allylic alcohols react with half equivalents of a selenenylating agent in methanol leading to the regiospecific formation of the corr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9a6256a2146ca95fbcc312bd919f8c6
https://doi.org/10.1080/10426500590906355
https://doi.org/10.1080/10426500590906355
Autor:
Lorenzo Testaferri, Andrea Temperini, Francesca Marini, Luana Bagnoli, Claudio Santi, Marcello Tiecco, Cristina Tomassini
Publikováno v:
Tetrahedron: Asymmetry. 13:429-435
The mixtures of two enantiomerically pure diastereoisomeric amido selenides, obtained from the reactions of alkenes with camphorselenyl sulfate in a mixture of water and a nitrile, were treated with Lawesson's reagent to afford a mixture of the two c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01a0e354cef266be2bba69013243d3b5
https://doi.org/10.1016/s0957-4166(02)00122-2
https://doi.org/10.1016/s0957-4166(02)00122-2
Autor:
Luana Bagnoli, Lorenzo Testaferri, Cristina Tomassini, Marcello Tiecco, Francesca Marini, Andrea Temperini, Claudio Santi
Publikováno v:
Tetrahedron. 56:3255-3260
The substitution reactions of thiophene and 2-methylthiophene with the electrophilic selenenylating agent produced from the 2,2′-dithienyl diselenide by oxidation with iodobenzene diacetate involve only the α-positions and give rise to the formati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7e095f5d17c43242a87721fc022fb08
https://doi.org/10.1016/s0040-4020(00)00245-3
https://doi.org/10.1016/s0040-4020(00)00245-3
Autor:
Andrea Temperini, Francesca Marini, Marcello Tiecco, Lorenzo Testaferri, Cristina Tomassini, Claudio Santi, Luana Bagnoli
Publikováno v:
Tetrahedron Letters. 41:3241-3245
The synthesis of a new chiral non-racemic sulfur containing diselenide is described. The electrophilic selenium reagent, produced from this diselenide by treatment with bromine and silver triflate, has been used to effect the selenomethoxylation and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95eb0365108304538434e9488a101b51
https://doi.org/10.1016/s0040-4039(00)00358-0
https://doi.org/10.1016/s0040-4039(00)00358-0