Zobrazeno 1 - 10
of 89
pro vyhledávání: '"André Guingant"'
Autor:
François Carreaux, Aymeric Siard, Sylvain Collet, Monique Mathé-Allainmat, André Guingant, Jacques Lebreton, Gilles Dujardin, Thibaud Mabit, Laura Foulgoc, Drissa Sissouma, Mathilde Pantin, Doumadé Zon
Publikováno v:
Journal of Organic Chemistry
Journal of Organic Chemistry, American Chemical Society, 2017, 82 (11), pp.5710-5719. ⟨10.1021/acs.joc.7b00544⟩
Journal of Organic Chemistry, 2017, 82 (11), pp.5710-5719. ⟨10.1021/acs.joc.7b00544⟩
Journal of Organic Chemistry, American Chemical Society, 2017, 82 (11), pp.5710-5719. ⟨10.1021/acs.joc.7b00544⟩
Journal of Organic Chemistry, 2017, 82 (11), pp.5710-5719. ⟨10.1021/acs.joc.7b00544⟩
International audience; An efficient access for the synthesis of pluramycinones is described. Total syntheses of racemic γ-indomycinone and kidamycinone were achieved by means of two Diels-Alder reactions. A first Diels-Alder condensation followed b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b759446bc013ba5a13dd0f8da396a98d
https://hal-univ-rennes1.archives-ouvertes.fr/hal-01533331/document
https://hal-univ-rennes1.archives-ouvertes.fr/hal-01533331/document
Autor:
Laura Foulgoc, André Guingant, Doumadé Zon, Romy Vomiandry, Drissa Sissouma, Mathilde Pantin, Sylvain Collet
Publikováno v:
Tetrahedron Letters. 56:2110-2112
The total synthesis of racemic γ-indomycinone has been achieved following an innovating convergent approach. The key step in the construction of the tetracyclic core corresponds to a Diels–Alder reaction between a substituted 5-isoprenyl-3,4-dihyd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e496323b270effb14446d4bfb82ffa1
https://doi.org/10.1016/j.tetlet.2015.03.010
https://doi.org/10.1016/j.tetlet.2015.03.010
Publikováno v:
SYNLETT
SYNLETT, Georg Thieme Verlag, 2012, pp.768. ⟨10.1055/s-0031-1290529⟩
SYNLETT, Georg Thieme Verlag, 2012, pp.768. ⟨10.1055/s-0031-1290529⟩
International audience; A new entry to the synthesis of anthrapyran antibiotics has been accomplished through the synthesis of a 4H-anthra[1,2-b]pyran-4,7,12-trione model. The key step features a Diels-Alder reaction between a substituted 5-vinyl-3,4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f308f911dc8fe2ec50776aabfb55d20b
https://doi.org/10.1055/s-0031-1290529
https://doi.org/10.1055/s-0031-1290529
Publikováno v:
Tetrahedron Letters. 52:2336-2339
We have developed an efficient synthesis of both enantiomers of a key azadiene for the preparation of 5-aza analogues of angucyclinones through a hetero Diels–Alder reaction. These dienes were efficiently prepared via a 4-step procedure from known
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8278283539e533ed4610ad4ff2e12f5e
https://doi.org/10.1016/j.tetlet.2011.02.084
https://doi.org/10.1016/j.tetlet.2011.02.084
Autor:
Karine Aphecetche-Julienne, André Guingant, Sylvain Collet, Sylvie Archambaud, Frédéric Legrand, Michel Evain
Publikováno v:
European Journal of Organic Chemistry
European Journal of Organic Chemistry, Wiley-VCH Verlag, 2010, pp.1364. ⟨10.1002/ejoc.200901233⟩
European Journal of Organic Chemistry, Wiley-VCH Verlag, 2010, pp.1364. ⟨10.1002/ejoc.200901233⟩
International audience; A total synthesis of (+)-brefeldin C (BFC) and two brefeldin A (BFA) analogues - (+)-nor-Me BFA and (+)-4-epi-nor-Me BFA - has been developed, Key features of the syntheses include desymmetrization of meso anhydrides, a Carrei
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76e4e64be021c15f48657dbce984195c
https://doi.org/10.1002/ejoc.200901233
https://doi.org/10.1002/ejoc.200901233
Autor:
Nguyen Quang Vu, André Guingant, Sylvain Collet, Arnaud Martel, Lucie Maingot, Gilles Dujardin
Publikováno v:
European Journal of Organic Chemistry
European Journal of Organic Chemistry, Wiley-VCH Verlag, 2009, pp.412-422. ⟨10.1002/ejoc.200800655⟩
European Journal of Organic Chemistry, Wiley-VCH Verlag, 2009, pp.412-422. ⟨10.1002/ejoc.200800655⟩
International audience; C-Naphthyl glycosides displaying a 1,5-difunctionality on the naphthalene ring that can undergo oxidation to bromonaphthoquinone are key intermediates in the synthesis of natural C-aryl glycoside analogues. In this area, sugar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f75ff90ca6b844998291ffffab14cd6
https://doi.org/10.1002/ejoc.200800655
https://doi.org/10.1002/ejoc.200800655
Autor:
Sylvain Collet, Michel Evain, Eun-Ang Raiber, André Guingant, Gilles Dujardin, Nguyen Quang Vu
Publikováno v:
Tetrahedron Letters. 46:7669-7673
Based on a heterocyclic Diels–Alder strategy, a concise synthesis of 5-aza-analogues of angucyclines bearing a 2-deoxy-C-glycoside subunit is reported. Starting from a common intermediate, a peracetylated D-2-deoxyglucose could be linked to carbons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c87575e54bccf867676bbf9f7b51537
https://doi.org/10.1016/j.tetlet.2005.09.053
https://doi.org/10.1016/j.tetlet.2005.09.053
Publikováno v:
Tetrahedron Letters. 46:2983-2987
Addition of cyanide ion to chiral N-acyl-quinolinium and N-acyl-isoquinolinium salts led selectively to 1,2-addition products. Removal of the chiral auxiliary affords the title compounds in pure enantiomeric form.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f03eff4c5a79d69c89031c436017704
https://doi.org/10.1016/j.tetlet.2005.03.034
https://doi.org/10.1016/j.tetlet.2005.03.034
Publikováno v:
Synlett. 2005:139-143
A new synthesis of (+)-brefeldin C featuring a Bolm desymmetrisation reaction, a B-alkyl Suzuki-Miyaura cross-coupling and a Carreira alkynylation reaction as the key steps is reported.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9dcc4bcffaa13b662a1af7291a84831f
https://doi.org/10.1055/s-2004-835669
https://doi.org/10.1055/s-2004-835669
Publikováno v:
Tetrahedron. 60:1827-1839
The cycloaddition of 2- or 2,3-substituted 1-thia- and 1-thia-3-aza-4-dimethylamino-buta-1,3-dienes with various dienophiles in the presence of a Lewis acid provides a rapid and diastereoselective access to the 3,4-dihydro-2H-thiopyran and 5,6-dihydr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d1be82bb45d7b6ea7240c274d08ceaa
https://doi.org/10.1016/j.tet.2003.12.041
https://doi.org/10.1016/j.tet.2003.12.041