Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Aurelia C. Sheppard"'
Publikováno v:
Journal of the American Chemical Society. 112:6679-6690
Le mecanisme met en jeu une substitution de type SN2 de l'anion enolate sur l'oxaziridine via un etat de transition «ouvert»
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88adb486f0cb95ed130c02b9003213b7
https://doi.org/10.1021/ja00174a035
https://doi.org/10.1021/ja00174a035
Autor:
Aurelia C. Sheppard, James C. Towson, Anil Kumar, Franklin A. Davis, Michael C. Weismiller, G. Sankar Lal
Publikováno v:
Organic Syntheses
(+)-(2R,8aS)-10-(camphorylsulfonyl)oxaziridine intermediate: (+)-(1S)-10-Camphorsulfonamide intermediate: (−)-(camphorsulfonyl)imine product: (+)-(2R, 8aS)-10-Camphorylsulfonyloxaziridine product: (−)-(2S,8aR)-10-(camphorylsulfonyl)oxaziridine Ke
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52688775b3be6fb6e19cd56d17f32be8
https://doi.org/10.1002/0471264180.os069.20
https://doi.org/10.1002/0471264180.os069.20
Publikováno v:
ChemInform. 21
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eaf1705f2e8082493272cc6157e42c4e
https://doi.org/10.1002/chin.199051067
https://doi.org/10.1002/chin.199051067
Publikováno v:
Tetrahedron Letters. 28:5115-5118
The hydroxylation of organometallic reagents (RM) by 2-sulfonyloxaziridines 1 is shown to involve a hemiaminal intermediate 2, whose stability is apparently related to the nucleophilicity of the hydroxylated product (ROH).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3d31f3cba31eeb748d878e2a31a9144
https://doi.org/10.1016/s0040-4039(00)95605-3
https://doi.org/10.1016/s0040-4039(00)95605-3
Publikováno v:
Tetrahedron Letters. 30:779-782
The stereoselectivity for the asymmetric oxidation of enolates to optically active α-hydroxy ketones using (+)-(camphorylsulfonyl)oxaziridine is dependent on the enolate substitution pattern, the solution structure of the enolate and to a lesser ext
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df69b46b7d98848a374783a912766bec
https://doi.org/10.1016/s0040-4039(01)80611-0
https://doi.org/10.1016/s0040-4039(01)80611-0
Autor:
Franklin A. Davis, Aurelia C. Sheppard
Publikováno v:
Tetrahedron. 45:5703-5742
Cet article de synthese, sur les N-aryl- et N-alkyl oxaziridines, rapporte la preparation de ces composes et leurs reactivites lors de reactions de transfert d'oxygene, de reactions nucleophiles et de transpositions chimiques; l'oxydation de sulfonyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85c9ce721c5fabbb58157af3ed6bd50f
https://doi.org/10.1016/s0040-4020(01)89102-x
https://doi.org/10.1016/s0040-4020(01)89102-x
Autor:
Aurelia C. Sheppard, Franklin A. Davis
Publikováno v:
ChemInform. 20
Tri-substituted enamines are oxidized to α-hydroxy ketones by N-sulfonyloxaziridines while di-substituted enamines are oxidized to α-amino ketones. A unified mechanism for the formation of both α-hydroxy ketones and α-amino ketones is proposed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9ac9f7fc5277d7ac816c8f84771b87c
https://doi.org/10.1002/chin.198909113
https://doi.org/10.1002/chin.198909113
Publikováno v:
ChemInform. 20
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a14128dcb3586082811c5d3401ed6bb9
https://doi.org/10.1002/chin.198935174
https://doi.org/10.1002/chin.198935174
Autor:
Aurelia C. Sheppard, Franklin A. Davis
Publikováno v:
The Journal of Organic Chemistry. 52:954-955
Synthese en particulier d'hydroxy-2 acetophenone et propiophenone, benzoique, acide mandelique via les trimethylsiloxy-2 oxirannes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8431d4b22343427ffae55839dccd5d87
https://doi.org/10.1021/jo00381a051
https://doi.org/10.1021/jo00381a051