Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Malika Ousmer"'
Autor:
Norbert A. Braun, Malika Ousmer, Marco A. Ciufolini, Jonah J. Chang, David Chai, Sylvain Canesi
Publikováno v:
Synthesis. 2007:3759-3772
This contribution reviews a family of reactions devised in our laboratory that effect the oxidative conversion of phenols into 4-amido-dienones. A salient feature of this chemistry is the use of hypervalent iodine reagents, especially diacetoxyiodobe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::502d7666d8db0748b2b4d9885a86d436
https://doi.org/10.1055/s-2007-990906
https://doi.org/10.1055/s-2007-990906
Publikováno v:
Tetrahedron. 62:5318-5337
We describe the development of a technique for the oxidative conversion of 4-alkyl phenols to derivatives of the corresponding 4-alkyl-4-amino-2,5-cyclohexanediones. This transformation, which was inspired by biogenetic considerations, constitutes a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::203f0e4a73341af5f9c65cb76788ae0c
https://doi.org/10.1016/j.tet.2006.01.111
https://doi.org/10.1016/j.tet.2006.01.111
Publikováno v:
European Journal of Organic Chemistry. 2006:1216-1221
A p-(C-glucopyranosyl)-L-phenylalanine derivative protected to be directly incorporated into a peptidic chain is prepared in 37 % yield from glucose on a gram scale, with a Negishi cross-coupling reaction as the key step. Zincated glucal and p-iodo-L
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdb4e3449b6ed758cb251ee352015e2e
https://doi.org/10.1002/ejoc.200500690
https://doi.org/10.1002/ejoc.200500690
Publikováno v:
Journal of the American Chemical Society. 123:7534-7538
A solution to the long-standing problem presented by the oxidative cyclization of a phenolic 3-arylpropionamide to a spirolactam has been developed in this laboratory via oxazoline chemistry. This research was motivated by our interest in some novel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e1af1412c80d25c6d6b801d5877fa73
https://doi.org/10.1021/ja016030z
https://doi.org/10.1021/ja016030z
Autor:
Norbert A. Braun, Marco A. Ciufolini, Eva-Maria Peters, Jonathan D. Bray, Karl Peters, Denis Bouchu, Malika Ousmer
Publikováno v:
The Journal of Organic Chemistry. 65:4397-4408
The oxidative cyclization of a phenolic amide to a spirolactam has long been regarded as an "impossible" reaction, because exposure of the substrates to a variety of oxidants results in formation of spirolactones with consequent loss of the amine seg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc1d3b707785a49f0cbcd0657c6ee1a7
https://doi.org/10.1021/jo000341v
https://doi.org/10.1021/jo000341v
Publikováno v:
European Journal of Organic Chemistry. 1999:3315-3321
Aminocarbene complexes of chromium 1b-d react successively with diphenylacetylene, XH (X = PhS, PhSe, OAc) and finally with pyridine to give a series of functionalized pyrrolinones 7 via N-ylide complexes 2. The X-ray structure of 7b originating from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da959850e628f7394d8bb5fa7c1c4bc4
https://doi.org/10.1002/(sici)1099-0690(199912)1999:12<3315::aid-ejoc3315>3.0.co
https://doi.org/10.1002/(sici)1099-0690(199912)1999:12<3315::aid-ejoc3315>3.0.co
Publikováno v:
ChemInform. 31
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6644707924403d61c8121cd17cdcf37f
https://doi.org/10.1002/chin.200009119
https://doi.org/10.1002/chin.200009119
Publikováno v:
ChemInform. 32
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a49a6b459c40eee7074f6109e3ff4fc5
https://doi.org/10.1002/chin.200146266
https://doi.org/10.1002/chin.200146266
Autor:
Sylvain Canesi, Jonah J. Chang, Malika Ousmer, David Chai, Marco A. Ciufolini, Norbert A. Braun
Publikováno v:
ChemInform. 39
This contribution reviews a family of reactions devised in our laboratory that effect the oxidative conversion of phenols into 4-amido-dienones. A salient feature of this chemistry is the use of hypervalent iodine reagents, especially diacetoxyiodobe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad3ea4742435aebe6ef2586bd02723d4
https://doi.org/10.1002/chin.200814264
https://doi.org/10.1002/chin.200814264
Publikováno v:
Organic letters. 3(5)
[structure: see text]. The total synthesis of FR901483, a structurally novel immunosuppressant, has been accomplished by the use of technology recently developed in this laboratory for the oxidative cyclization of phenolic oxazolines to spirolactams.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65b27770493d60830bf13249e42b6e0c
https://pubmed.ncbi.nlm.nih.gov/11259057
https://pubmed.ncbi.nlm.nih.gov/11259057