Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Lucien Stella"'
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 103:361-366
The methyl N-(1-phenylethyl)-α-iminoacetate undergoes zinc iodide activated aza-Diels-Alder cycloaddition reactions with electron rich conjugated dienes. Cyclic α-amino-acids are formed in good yields, with complete regioselectivity, but the extent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7f89e6e43f20132f3509fb37e4bb75b
https://doi.org/10.1002/bscb.19941030709
https://doi.org/10.1002/bscb.19941030709
Publikováno v:
Tetrahedron. 63:3205-3216
Selected N-sulfenylimines act as good nucleophilic partners in the Staudinger reaction with methoxy- and benzyloxy-ketenes. The choice of diisopropylethylamine as a non-nucleophilic Lewis base for the generation of ketenes from acid chlorides is a de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bf691ac974621b154a3792f78056d98
https://doi.org/10.1016/j.tet.2007.01.051
https://doi.org/10.1016/j.tet.2007.01.051
Autor:
Lucien Stella
Publikováno v:
Angewandte Chemie. 95:368-380
Viele N-Chlor-alkylamine mit Doppelbindung(en) im Alkylrest zerfallen homolytisch in Chloratome und Aminylradikale, die unter intramolekularer Addition cyclisieren. Die Natur der Aminylradikale (neutral, protoniert oder an Metallsalze gebunden) schei
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc77c49b1c4fd59f3912a0090eb08447
https://doi.org/10.1002/ange.19830950504
https://doi.org/10.1002/ange.19830950504
Publikováno v:
Tetrahedron. 59:3719-3727
We report the use of 19 F NMR as a simple means to monitor reactions on a solid phase. Multi-step sequences including protection, coupling, deprotection, condensation, cycloaddition and cleavage steps are described in the case of multicomponent react
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17410460383c8964e2f10af3ccbcc3af
https://doi.org/10.1016/s0040-4020(03)00553-2
https://doi.org/10.1016/s0040-4020(03)00553-2
Publikováno v:
Synthetic Communications. 30:3685-3691
The reaction of chloroacetyl chloride and triethylamine with a chiral imine derived from the combination of methyl glyoxylate and protected L-threonine gave two optically active α-amino acid derivatives with a cis-substituted β-lactam skeleton in a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0747216160f4ef66f18cb3b07e61e7e0
https://doi.org/10.1080/00397910008086995
https://doi.org/10.1080/00397910008086995
Autor:
Alain Commercon, Dominique Mouysset, Patricia Perfetti, Serge Mignani, Lucien Stella, Michel Barreau
Publikováno v:
Scopus-Elsevier
Selected imines of methyl glyoxylate act as good partners in the Staudinger cycloaddition reaction with a series of substituted ketenes. The cis stereoselectivity is almost complete with electron-donor substituted ketenes, but the asymmetric inductio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b1abcb0a9c6ee74c7d123052d87ad34
https://doi.org/10.1016/s0040-4020(98)00683-8
https://doi.org/10.1016/s0040-4020(98)00683-8
Publikováno v:
Tetrahedron. 54:4579-4590
A new series of conformationally restricted retinoids (3-aryl-3-methyl-2,3-dihydro-benzofurans) have been prepared through a palladium-catalyzed tandem cyclisation-hydride capture. The use of enantiopure BINAP-Pd catalyst allowed asymmetric synthesis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbad16aadfc4d7885d69c0c0ad169365
https://doi.org/10.1016/s0040-4020(98)00169-0
https://doi.org/10.1016/s0040-4020(98)00169-0
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 7:2289-2294
A series of 3-aryl-2H-1-benzopyrancarboxylic acid derivatives was synthesized and evaluated as Retinoic Acid Receptor (RAR) agonists. By modifications of the 3-aryl group, we have obtained new retinoids exhibiting potent cellular differentiating acti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff0b2e3fb0bc7ed046d5cd654b47c38b
https://doi.org/10.1016/s0960-894x(97)00405-8
https://doi.org/10.1016/s0960-894x(97)00405-8
Publikováno v:
Tetrahedron. 49:8397-8406
Treatment of the acyclic allyl-octa-4,7-dienyl N-chloroamine 5 by titanium trichloride induces a chain process including three consecutive regio- and stereo-selective homolytic cyclisations. As a result of these selectivities, the main product of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65d8ff5fcc035a0a11cdfb9d57e4b974
https://doi.org/10.1016/s0040-4020(01)81922-0
https://doi.org/10.1016/s0040-4020(01)81922-0
Autor:
H. Abraham, Lucien Stella
Publikováno v:
ChemInform. 22
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb90554b6bc84735b6262e2a9373bfd8
https://doi.org/10.1002/chin.199105221
https://doi.org/10.1002/chin.199105221