Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Imad Safir"'
Publikováno v:
Tetrahedron: Asymmetry
Tetrahedron: Asymmetry, Elsevier, 2014, 25 (18-19), pp.1253-1263. ⟨10.1016/j.tetasy.2014.08.005⟩
Tetrahedron: Asymmetry, Elsevier, 2014, 25 (18-19), pp.1253-1263. ⟨10.1016/j.tetasy.2014.08.005⟩
Inversion at the highly congested C1 position of 1-epi-pathylactone A (1-epi-1), or its corresponding steroidal hybrid 8a, using a diverse range of published procedures including microwave assisted Mitsunobu reaction or via oxidation to the correspon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8978f936ca96a739638e198d13de231
https://doi.org/10.1016/j.tetasy.2014.08.005
https://doi.org/10.1016/j.tetasy.2014.08.005
Publikováno v:
ChemInform. 46
Inversion at the highly congested C1 position of 1-epi-pathylactone A (1-epi-1), or its corresponding steroidal hybrid 8a, using a diverse range of published procedures including microwave assisted Mitsunobu reaction or via oxidation to the correspon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::277b522f9ddef7d1486b2de34c081a43
https://doi.org/10.1002/chin.201515263
https://doi.org/10.1002/chin.201515263
Autor:
Talbi Kaoudi, Nicolas Birlirakis, Imad Safir, Susana Porcel, Loïc Toupet, Isabel Castellote, Siméon Arseniyadis
Publikováno v:
Chemistry-A European Journal
Chemistry-A European Journal, Wiley-VCH Verlag, 2006, 12(28), pp.7337-7344. ⟨10.1002/chem.200600494⟩
Chemistry-A European Journal, Wiley-VCH Verlag, 2006, 12(28), pp.7337-7344. ⟨10.1002/chem.200600494⟩
Oxidative cleavage with lead tetraacetate results in the synthesis of different oxygen heterocycles starting from the same unsaturated 1,2-diol of type I by tuning of the substitution pattern at the angular position. When this compound bears a functi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::061e856982177e26e8d73432b504523d
https://doi.org/10.1002/chem.200600494
https://doi.org/10.1002/chem.200600494
Publikováno v:
Organic Letters. 5:4915-4918
The microwave-assisted intramolecular [3 + 2] cycloaddition reaction of azomethine ylides to activated and nonactivated alkenes and alkynes is described. The procedure allows the synthesis of pyrrolidines and pyrrole products in good to excellent ove
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e15a90706f0dedf8c838bbb6664d1e0
https://doi.org/10.1021/ol0361195
https://doi.org/10.1021/ol0361195
Diverging pathways to topologically complex polycyclic bis-acetals and their ring system interchange
Autor:
Rafael R. Castillo, Imad Safir, Siméon Arseniyadis, Zobida Elkhayat, Maurizio Aquino, Pascal Retailleau, Zoila Gandara
Publikováno v:
Organic Letters
Organic Letters, American Chemical Society, 2012, 14 (6), pp.1628-31. ⟨10.1021/ol300388b⟩
Organic Letters, American Chemical Society, 2012, 14 (6), pp.1628-31. ⟨10.1021/ol300388b⟩
International audience; Carbinol-tethered octalin-diols (1), which differ only by the C11 configuration at the angular position, were transformed selectively to three types of structurally unrelated original scaffolds such as unsymmetrical octahydroa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2829edddc5ff5aebbec056f1645bed6
https://pubmed.ncbi.nlm.nih.gov/22394381
https://pubmed.ncbi.nlm.nih.gov/22394381
Publikováno v:
ChemInform. 42
The tandem epoxidation—ring opening of cyclic ene-acetals, e.g. (I), (IX) or (XII), proceeds smoothly in the presence of NaBO3 to give 6α-hydroxy-bis-acetal derivatives.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01e7550f8ec2d70e721c975d47c36beb
https://doi.org/10.1002/chin.201104024
https://doi.org/10.1002/chin.201104024
Autor:
Imad Safir, Pascal Retailleau, Zoila Gándara, Siméon Arseniyadis, Zobida Elkhayat, Maurizio Aquino, Manuel Perez
Publikováno v:
ChemInform. 41
Structurally different products can be reached selectively from unsaturated vicinal bicyclic diols, which differ only by the epoxide configuration at the angular position. It is possible to modify the regiochemical outcome of the domino process in su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c8c3c43d7f4e5f6b1025b1ba9ac8eac
https://doi.org/10.1002/chin.201004132
https://doi.org/10.1002/chin.201004132
Publikováno v:
European Journal of Organic Chemistry
European Journal of Organic Chemistry, Wiley-VCH Verlag, 2010, pp.4851-4860. ⟨10.1002/ejoc.201000556⟩
European Journal of Organic Chemistry, Wiley-VCH Verlag, 2010, pp.4851-4860. ⟨10.1002/ejoc.201000556⟩
The methodology described in this paper involves the epoxidation of cyclic ene-acetals to spontaneously generate 6α-hydroxy-bis-acetals that could serve as precursors for a Cannizzaro-type rearrangement, yielding bis-angularly substituted cis-fused
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d26d3f0ff1eff8c616daf63b0d01621
https://hal.archives-ouvertes.fr/hal-00522081
https://hal.archives-ouvertes.fr/hal-00522081
Autor:
Maurizio Aquino, Zoila Gandara, Siméon Arseniyadis, Manuel Perez, Imad Safir, Pascal Retailleau, Zobida Elkhayat
Publikováno v:
ChemInform. 40
A Pb(OAc)4-mediated, path selective, modular domino transformation using an octaline diol framework as a probe is described. Alteration of the nature of the angular substituent or the length of the tether chain controls the effectiveness of the “ri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a1c5a213739a8257639bc9354ec1545
https://doi.org/10.1002/chin.200938169
https://doi.org/10.1002/chin.200938169
Autor:
Zoila Gándara, Siméon Arseniyadis, Pascal Retailleau, Zobida Elkhayat, Imad Safir, Maurizio Aquino, Manuel Perez
Publikováno v:
Organic Letters
Organic Letters, American Chemical Society, 2009, 11 (16), pp.3610-3. ⟨10.1021/ol9013377⟩
Organic Letters, American Chemical Society, 2009, 11 (16), pp.3610-3. ⟨10.1021/ol9013377⟩
International audience; Structurally different products can be reached selectively from unsaturated vicinal bicyclic diols, which differ only by the epoxide configuration at the angular position. It is possible to modify the regiochemical outcome of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13785fb18ec5a1288ad23b611b65d3cf
https://pubmed.ncbi.nlm.nih.gov/19719199
https://pubmed.ncbi.nlm.nih.gov/19719199