Zobrazeno 1 - 10
of 268
pro vyhledávání: '"Lorenzo Testaferri"'
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
Publikováno v:
Tetrahedron. 69:481-486
A novel and general approach to six-membered bicyclic benzo fused 1,4-heterocycles is described. The addition–cyclization cascade of benzo 1,2-diols, 1,2-thiols and 2-(benzylamino)phenols with stable and easily available vinyl selenones affords dif
Publikováno v:
Chemistry - A European Journal. 17:993-999
The reactions of readily available vinyl selenones with enantiopure 1,2-diols, N-protected-1,2-aminoalcohols, and diamines gave substituted enantiopure 1,4-dioxanes, morpholines, and piperazines, respectively, in good to excellent yields. The same pr
Autor:
Francesca Marini, Lorenzo Testaferri, Francesca Del Verme, Silvia Sternativo, Marcello Tiecco, Antonella Calandriello
Publikováno v:
Tetrahedron. 66:6851-6857
Variously substituted aziridines were conveniently prepared by an aza-Michael Initiated Ring Closure (aza-MIRC) reaction starting from vinyl selenones and primary amines, aminoalcohols or diamines. The reactions proceed in very high yields at room te
Autor:
Luana Bagnoli, Silvia Sternativo, Francesca Marini, Lorenzo Testaferri, Benedetta Battistelli, Claudio Santi
Publikováno v:
Tetrahedron Letters. 54:6755-6757
A novel, simple, and flexible approach to α,α-disubstituted γ-lactams via a domino Michael addition/cyclization process involving the phenyl vinyl selenone and β-ketoamides, malonylamides, or β-cyanoamides is reported. The reactions proceed in g
Publikováno v:
Synthetic Communications. 40:295-302
Aliphatic and aromatic amines are efficiently acylated by acetic, pivalic, benzoic, phthalic, or maleic anhydrides in ethyl acetate at room temperature. Under the same experimental conditions, amino alcohols are chemoselectively acylated at the amino
Publikováno v:
European Journal of Organic Chemistry. 2009:4921-4925
Vinyl selenides can be easily obtained through nucleophilic substitution of the corresponding halides by using PhSeZnCl in THF as well as “on water” conditions. The reaction is stereospecific with retention of the alkene geometry. The only except
Publikováno v:
Tetrahedron: Asymmetry. 19:2411-2416
Enantiomerically pure disubstituted pyrrolidines, recently synthesized from commercially available enantiomerically pure β-aminoalcohol, were used as starting materials to synthesize enantiomerically pure hexahydro-1 H -pyrrolizines and octahydroind
Publikováno v:
Synlett. 2008:1471-1474
Under acidic conditions zinc reduces diselenides to afford selenols, which can be either isolated or treated in situ with alkyl halides to produce alkyl selenides or with epoxides to give β-hydroxyselenides.
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...