Zobrazeno 1 - 10 of 10 pro vyhledávání: '"Odile Gaonac'h"'
1
Conjugate-elimination on unsaturated acetals: A one-step route to functionalized 1,3-dienes
Autor: Yann Le Gallic, Jacques Maddaluno, Odile Gaonac'h, Lucette Duhamel
Publikováno v: Tetrahedron Letters. 36:8591-8594
γ-Functionalized α,β-unsaturated dimethyl acelals undergo a methanol δ-elimination upon basic treatment, leading to 1,4-disubstituted 1,3-dienes in good yields and, in several cases, with high stereocontrol of the newly formed double bonds.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::34a526c6e57440f2e09e4b9a82ff524f
https://doi.org/10.1016/0040-4039(95)01832-3
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2
A mild and direct oxidation of dienol thioethers into ketene dithioacetals
Autor: Odile Gaonac'h, Lucette Duhamel, Jacques Maddaluno, Frank Freidanck
Publikováno v: Tetrahedron Letters. 34:3871-3874
Functionalized dienol thioethers reacts with 3 eq. of thiophenol at room temperature in presence of dioxygen to give directly corresponding ketene dithiacetals in high yields.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b285fbff4cbb2ef6a38b66981563aee3
https://doi.org/10.1016/s0040-4039(00)79250-1
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5
ChemInform Abstract: A Mild and Direct Oxidation of Dienol Thioethers into Ketene Dithioacetals
Autor: Lucette Duhamel, Frank Freidanck, Jacques Maddaluno, Odile Gaonac'h
Publikováno v: ChemInform. 24
Functionalized dienol thioethers reacts with 3 eq. of thiophenol at room temperature in presence of dioxygen to give directly corresponding ketene dithiacetals in high yields.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9e8dbf2fb82fa18ad0b54de1bbcd2418
https://doi.org/10.1002/chin.199345128
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8
1-(Phenylthio)- and 1-(phenylsulfoxide)-4-alkoxy-butadienes, a new class of chiral dienes
Autor: Jacques Maddaluno, Lucette Duhamel, Odile Gaonac'h, G. Ple
Publikováno v: Tetrahedron Letters. 33:2473-2476
Trans-acetalization of the methyl acetal of 3-methyl-4-(phenylthio)-but-2-enal 2a in acidic medium leads to the expected trans-acetals 2b–f or their γ-elimination products (i.e. 4-alkoxy-2-methyl-1-(phenylthio)buta-1,3-dienes 4 ), depending on the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ece5e075c8471c3bd1035e46f48bac49
https://doi.org/10.1016/s0040-4039(00)92218-4
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9
Unexpected behavior of dienol thio ethers gives versatile access to a large set of functionalized dienes
Autor: Lucette Duhamel, Odile Gaonac'h, Jacques Maddaluno, Joë Chauvin
Publikováno v: The Journal of Organic Chemistry. 56:4045-4048
We present in this work: (i) the first stereoselective access to 4-methoxy-1-(phenylthio) buta-1,3-diene based on 1,4-elimination of corresponding thioether acetal 4, (ii) the exceptional ability of nucleophilic additions to take place on such substr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4a086ba8a62706722c919ab0947c0bef
https://doi.org/10.1021/jo00012a045
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10
Synthesis and cycloaddition reactions of 1-(arylthio)-1,3-dienes. A combined experimental and theoretical study of bicyclic adducts structures
Autor: Jacques Maddaluno, Claude Giessner-Prettre, Loïc Toupet, Albert Marcual, Odile Gaonac'h
Publikováno v: Scopus-Elsevier
A method giving simple access to various 1-(phenylthio)-4-substituted-1,3-dienes (5−10) is described. The influence of the different functionalizations introduced on the dienic systems has been tested in a set of classical [4 + 2] cycloaddition rea
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efb04196d6bec59848ea3fcd387cf791
http://www.scopus.com/inward/record.url?eid=2-s2.0-0000449365&partnerID=MN8TOARS
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