Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Y. Chavant"'
Publikováno v:
Tetrahedron Letters
Tetrahedron Letters, Elsevier, 2018, 59 (23), pp.2293-2295. ⟨10.1016/j.tetlet.2018.05.013⟩
Tetrahedron Letters, Elsevier, 2018, 59 (23), pp.2293-2295. ⟨10.1016/j.tetlet.2018.05.013⟩
An unprecedented 7-membered ring cyclization of an enamide to a phenol through hypervalent iodine phenolic oxidation was discovered. In the process a molecule of solvent is incorporated on the cycle forming an unusual and stable hemi-aminal ether.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c844db3c8effa7aecaf658b7ff6872b7
https://hal.archives-ouvertes.fr/hal-01846972
https://hal.archives-ouvertes.fr/hal-01846972
Publikováno v:
ChemistrySelect
ChemistrySelect, Wiley, 2017, 2 (1), pp.443-450. ⟨10.1002/slct.201601993⟩
ChemistrySelect, Wiley, 2017, 2 (1), pp.443-450. ⟨10.1002/slct.201601993⟩
International audience; A series of chiral imidazolidinone-based hydroxylamines were evaluated as catalysts for the aerobic oxidation of alcohols in the presence of CuIOTf/bpy/NMI as co-catalysts. In such conditions, the in situ produced nitroxides c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::030ca2c1dc7d1ce0d19ce0b1a95d7adc
https://hal.archives-ouvertes.fr/hal-01461650
https://hal.archives-ouvertes.fr/hal-01461650
Publikováno v:
European Journal of Organic Chemistry. 2014:4884-4896
New chiral nitroxides based on the imidazolidin-4-one skeleton, and the corresponding hydroxylamines, have been prepared from cyclic nitrones by a straightforward reaction sequence. They were evaluated as catalysts in the aerobic oxidation of benzyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9934ba48a55a0692dfa0008685d584f
https://doi.org/10.1002/ejoc.201402324
https://doi.org/10.1002/ejoc.201402324
Autor:
Yves Gimbert, Sandra Olivero, Flavien Labre, Pierre Bannwarth, Elisabet Duñach, Pierre Y. Chavant
Publikováno v:
Organic Letters
Organic Letters, American Chemical Society, 2014, 16 (9), pp.2366. ⟨10.1021/ol500675q⟩
Organic Letters, American Chemical Society, 2014, 16 (9), pp.2366. ⟨10.1021/ol500675q⟩
International audience; A new cooperative copper/iron catalysis for the borylation of various aryl bromides with pinacolborane, at −10 °C, is reported. Use of the toxic, precious metal Pd is avoided. The mechanism of the protodebromination side re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1872697b11dc6815423d440265b1df9f
https://doi.org/10.1021/ol500675q
https://doi.org/10.1021/ol500675q
Autor:
A. Malmazet, V Bérard, C. Andrès, Y. Chavant, Frédéric Demarne, Vincent Jannin, Stéphanie Chevrier
Publikováno v:
Journal of Drug Delivery Science and Technology. 23:181-185
Solid-phase lubricants are routinely used in tablet manufacturing to reduce friction during the densification and ejection phases. However, two main challenges are commonly observed: a) poor blending of the lubricant with the other components; b) inc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7917442f77529ffee707f323f462e34e
https://doi.org/10.1016/s1773-2247(13)50027-x
https://doi.org/10.1016/s1773-2247(13)50027-x
Publikováno v:
Journal of Organic Chemistry
Journal of Organic Chemistry, American Chemical Society, 2012, 77 (18), pp.7901-12. ⟨10.1021/jo301114k⟩
Journal of Organic Chemistry, American Chemical Society, 2012, 77 (18), pp.7901-12. ⟨10.1021/jo301114k⟩
International audience; Cocatalysis by pivalic acid or copper bromide allows a very fast, clean, and high-yielding palladium-catalyzed coupling of a large array of aryl, thienyl, and pyridyl halides with cyclic nitrones, including DMPO. The study of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ae7a5cfdc9131c36c4e2782714bbb54
https://doi.org/10.1021/jo301114k
https://doi.org/10.1021/jo301114k
Autor:
Véronique Blandin, Pierre Y. Chavant, Christian Philouze, Maryse Thiverny, Benoit Baptiste, Emilien Demory
Publikováno v:
Tetrahedron: Asymmetry
Tetrahedron: Asymmetry, Elsevier, 2011, 22 (12), pp.1266-1273. ⟨10.1016/j.tetasy.2011.07.002⟩
Tetrahedron: Asymmetry, Elsevier, 2011, 22 (12), pp.1266-1273. ⟨10.1016/j.tetasy.2011.07.002⟩
The reduction of the chiral, racemic nitrone MiPNO provides a secondary hydroxylamine. Its O-acylation with O , O ’-dibenzoyl- l -tartaric acid anhydride gives two diastereomers, that can be easily separated by selective dissolution in orthogonal s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::289a5a79c29d02d44c17e4b01c28055e
https://doi.org/10.1016/j.tetasy.2011.07.002
https://doi.org/10.1016/j.tetasy.2011.07.002
Autor:
Pierre Y. Chavant, Véronique Blandin
The preparation and reactivity of hexylene-glycol boronic esters (2-alkyl-, 2-vinyl- or 2-aryl-4,4,6-trimethyl-1,3,2-dioxaborinanes) are reviewed, with particular consideration for comparison with other stable boronic esters derived from pinacol or n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87b0167db19524efb836aa4a8ed5fbda
https://doi.org/10.1039/9781782622123-00061
https://doi.org/10.1039/9781782622123-00061
Publikováno v:
ChemInform. 46
New chiral nitroxides based on the imidazolidin-4-one skeleton, and the corresponding hydroxylamines, have been prepared from cyclic nitrones by a straightforward reaction sequence. They were evaluated as catalysts in the aerobic oxidation of benzyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32a182da0b2756621e54952fb53ac51c
https://doi.org/10.1002/chin.201508108
https://doi.org/10.1002/chin.201508108
Autor:
Karel Le Jeune, Frédéric Cantagrel, Pierre Y. Chavant, Astrid Pernet-Poil-Chevrier, Christian Philouze
Publikováno v:
Tetrahedron: Asymmetry
Tetrahedron: Asymmetry, Elsevier, 2006, 17 (13), pp.1969. ⟨10.1016/j.tetasy.2006.06.046⟩
Tetrahedron: Asymmetry, Elsevier, 2006, 17 (13), pp.1969. ⟨10.1016/j.tetasy.2006.06.046⟩
The preparation of new enantiopure cyclic nitrones based on the 1-oxy-2,3-dihydro-imidazol-4-one ring is described. The addition of arylmagnesium or alkynylzinc reagents to these nitrones can be achieved with total enantio- and diastereoselectivity,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80f859094af5590f2aedf9eb1be2600e
https://doi.org/10.1016/j.tetasy.2006.06.046
https://doi.org/10.1016/j.tetasy.2006.06.046