Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Nina Tölle"'
Publikováno v:
Organic Letters
Organic Letters, American Chemical Society, 2011, 13 (12), pp.3266-3269. ⟨10.1021/ol2012204⟩
Organic Letters, American Chemical Society, 2011, 13 (12), pp.3266-3269. ⟨10.1021/ol2012204⟩
International audience; When subjected to the conditions of a Semmler-Wolff/Schroeter aromatization, the oximes of 4-benzyl-substituted tetralones undergo an electrophilic aromatic substitution reaction to form tetracyclic frameworks. © 2011 America
Publikováno v:
Organic Letters. 11:5230-5233
A domino process consisting of an amidation, spirocyclization, and formation of an iminium ion and electrophilic aromatic substitution of a phenylethylamine and a ketoester leads to the spirocyclic skeleton of (+)-erysotramidine, which can be further
Publikováno v:
Synlett. 2008:525-528
A Lewis acid catalyzed domino-amidation-spirocy- clization reaction is described which provides the spirocyclic core of the erythrina and B-homoerythrina alkaloids, forming three bonds in one process.
Autor:
Alexander Düfert, Nina Tölle, Serry A. A. El Bialy, Lutz F. Tietze, Holger Braun, Peter L. Steck
Publikováno v:
Tetrahedron. 63:6437-6445
The synthesis of cephalotaxine- and cephalotaxine amide analogues 14a – c and 16a – c as well as of the deoxyharringtonine analogues 5a , b was performed employing a trimethylaluminium-mediated domino reaction of 9a – c and 8 to give the spiroc
Publikováno v:
Organic Letters
Organic Letters, American Chemical Society, 2012, 14 (4), pp.1020-1023. ⟨10.1021/ol203387r⟩
Organic Letters, American Chemical Society, 2012, 14 (4), pp.1020-1023. ⟨10.1021/ol203387r⟩
International audience; Unsaturated and doubly unsaturated esters have been synthesized in two steps by the application of a radical xanthate transfer process of a simple methylsulfoxide starting material to a range of terminal alkenes. syn-Eliminati
Publikováno v:
Organic Letters; Nov2009, Vol. 11 Issue 22, p5230-5233, 4p