Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Ludovic Raffier"'
Publikováno v:
Organic & Biomolecular Chemistry. 18:1949-1956
A new and straightforward synthesis of the C1-C7 core fragment of nhatrangin A was achieved in 14 steps from achiral 3-hydroxybenzaldehyde, without the need of chiral reagents or enzymatic resolution to introduce the chiral centers. The key asymmetri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16d7e2635893ab942b6f56d7e757fc62
https://doi.org/10.1039/c9ob02639h
https://doi.org/10.1039/c9ob02639h
Autor:
Ludovic Raffier, Olivier Piva
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 7, Iss 1, Pp 151-155 (2011)
The asymmetric synthesis of gymnastatin H has been achieved by using the photoisomerisation of a conjugated ester to its β,γ-unsaturated isomer through the protonation of a in situ generated dienol as key step. Thanks to diacetone D-glucose used as
Externí odkaz:
https://doaj.org/article/4c5101678cbf4bde88c9ecb050830dcc
Publikováno v:
Tetrahedron
Tetrahedron, Elsevier, 2018, 74 (38), pp.5367-5373. ⟨10.1016/j.tet.2018.06.040⟩
Tetrahedron, Elsevier, 2018, 74 (38), pp.5367-5373. ⟨10.1016/j.tet.2018.06.040⟩
β-Masked formyl hexanolides were prepared by a three-step sequence including esterification of homoallylic alcohols, ring-closing metathesis and the photochemically induced addition of dioxanyl radical. When treated under oxidative conditions, the a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a76d32be06e3010f65ae15fdde8bdf4e
https://doi.org/10.1016/j.tet.2018.06.040
https://doi.org/10.1016/j.tet.2018.06.040
Autor:
Patrick J. Walsh, Osvaldo Gutierrez, Marisa C. Kozlowski, Ludovic Raffier, Gretchen R. Stanton
Publikováno v:
Organometallics
Alkenes have been discovered to be chelating groups to Zn(II), enforcing highly stereoselective additions of organozincs to β,γ-unsaturated ketones. 1H NMR studies and DFT calculations provide support for this surprising chelation mode. The results
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d10f5d8b4af939d0dcb147cd7aa1b3fa
https://doi.org/10.1021/om5007006
https://doi.org/10.1021/om5007006
Publikováno v:
Organic Letters
A new synthetic route to access diarylmethyl phosphonates is presented. The transformation enables the introduction of aromatic groups on benzylic phosphonates via a deprotonative cross-coupling process (DCCP). The Pd(OAc)2/CataCXium A-based catalyst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff972205a652abb19329fd95bbe1fb7b
https://doi.org/10.1021/ol5002413
https://doi.org/10.1021/ol5002413
Autor:
Ludovic Raffier, Olivier Piva
Publikováno v:
European Journal of Organic Chemistry. 2013:1124-1131
Two different strategies have been considered to achieve the first total synthesis of nhatrangins A and B. The first approach based on a cross metathesis (CM) reaction was unsuccessful. The second, which combined a highly stereoselective alkylation,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b398f8780409519e06b66b36298210b
https://doi.org/10.1002/ejoc.201201338
https://doi.org/10.1002/ejoc.201201338
Publikováno v:
Synthesis. 2011:4037-4044
A new tetrahydropyran scaffold has been efficiently prepared by Prins reaction between hepta-1,6-dien-4-ol and benzaldehyde. Subsequent functionalizations were further achieved by Mitsunobu reaction and/or by the way of cross-metathesis/Wacker oxidat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc34b49cf782bf23def528224ca7cf45
https://doi.org/10.1055/s-0031-1289588
https://doi.org/10.1055/s-0031-1289588
Autor:
Olivier Piva, Ludovic Raffier
Publikováno v:
Beilstein Journal of Organic Chemistry
Beilstein Journal of Organic Chemistry, Beilstein-Institut, 2011, 7, pp.151-5. ⟨10.3762/bjoc.7.21⟩
Beilstein Journal of Organic Chemistry, Vol 7, Iss 1, Pp 151-155 (2011)
Beilstein Journal of Organic Chemistry, Beilstein-Institut, 2011, 7, pp.151-5. ⟨10.3762/bjoc.7.21⟩
Beilstein Journal of Organic Chemistry, Vol 7, Iss 1, Pp 151-155 (2011)
International audience; The asymmetric synthesis of gymnastatin H has been achieved by using the photoisomerisation of a conjugated ester to its β,γ-unsaturated isomer through the protonation of a in situ generated dienol as key step. Thanks to dia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b954acac7568a393713cc2657741bc4f
https://doi.org/10.3762/bjoc.7.21
https://doi.org/10.3762/bjoc.7.21
Publikováno v:
ChemInform. 45
A new synthetic route to access diarylmethyl phosphonates is presented. The transformation enables the introduction of aromatic groups on benzylic phosphonates via a deprotonative cross-coupling process (DCCP). The Pd(OAc)2/CataCXium A-based catalyst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac9e846bf0009900b397e6bc8678630d
https://doi.org/10.1002/chin.201433199
https://doi.org/10.1002/chin.201433199
Publikováno v:
ChemInform. 45
The Lewis-acid diethyl zinc chloride, which is responsible for promoting chelation, is generated in situ in an autocatalytic fashion.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::673b7f6daa8b9e55b9d02b1fc215abc1
https://doi.org/10.1002/chin.201421047
https://doi.org/10.1002/chin.201421047