Zobrazeno 1 - 10
of 53
pro vyhledávání: '"M. J. Vilaplana"'
Publikováno v:
Tetrahedron: Asymmetry. 13:5-8
Optically active 8-N,N-bis(ferrocenylmethyl)aminomenthol 5, obtained by condensation of (−)-aminomenthol with ferrocenecarboxaldehyde followed by N-alkylation with (ferrocenylmethyl)trimethylammonium iodide and further reduction, was found to catal
Autor:
Francisco Martínez, Delia Bautista, M. J. Vilaplana, A. Arques, Pedro Molina, David Aunon, M. Desamparados Velasco, Fernando J. Lahoz
Publikováno v:
Scopus-Elsevier
Staudinger reactions of the β-aryl-, heteroaryl- and ferrocenylvinylazides ( 2 ) with ( Z )-1,2-bis(diphenylphosphanyl)ethene afford the P , N -ligands ( 3 ) in good yields. Reaction of 3 with dichlorobis(benzonitrile)palladium(II) leads to the Pd(I
Publikováno v:
The Journal of Organic Chemistry. 61:8094-8098
New reactions of (vinylimino)phosphoranes with aldehydes involving an initial nucleophilic attack of the beta-carbon atom of the vinyl side chain on the carbonyl carbon atom are reported. Iminophosphorane 4 derived from ethyl beta-azidoacrylate react
Publikováno v:
Tetrahedron Letters. 37:7829-7832
Novel ferrocene derivatives such as β-ferrocenylvinylheterocumulenes and ferrocene-containing imidazole rings have been easily prepared from β-ferrocenylvinyliminophosphorane 3 by Aza Wittig reactions.
Publikováno v:
Tetrahedron. 51:1265-1276
The reaction of the iminophosphorane derived from 3-azidocyclohexen-2-enone with substituted cinnamyl aldehydes affords 2-aryl-tetrahydroquinoline derivatives, which are easily converted into 2-arylquinolines. By contrast, iminophosphorane derived fr
Autor:
M. J. Vilaplana, Pedro Molina
Publikováno v:
Synthesis. 1994:1197-1218
Publikováno v:
Tetrahedron. 49:7769-7778
Aza Wittig reaction of iminophosphoranes derived from ethyl α-azido-β-aryl(pyrazolyl)propenoates with α,β-unsaturated aldehydes leads to aldimines which by heating undergo electrocyclic ring-closure through the 3-azahexa-1,3,5-triene moiety to gi
Publikováno v:
Tetrahedron Letters. 34:3773-3776
Aza Wittig reaction of iminophosphoranes 1, derived from α-azido- α,β-unsaturated esters and β-arylpropenals 2 leads to 4-arylpyridines in moderate to good yields.
Publikováno v:
ChemInform. 22
Publikováno v:
ChemInform. 24
Aza Wittig reaction of iminophosphoranes derived from ethyl α-azido-β-aryl(pyrazolyl)propenoates with α,β-unsaturated aldehydes leads to aldimines which by heating undergo electrocyclic ring-closure through the 3-azahexa-1,3,5-triene moiety to gi