Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Robert Ottinger"'
Publikováno v:
Bulletin des Sociétés chimiques belges, 76 (5-6
A complete assignment of the NMR methyl frequencies of Δ12‐oleanene triterpenes has been achieved. A list of additive chemical shifts permitting a priori calculation of the methyl frequencies for various substituents has been established. The synt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2acefbef41c99bc7609318328beb26b
https://doi.org/10.1002/bscb.19670760509
https://doi.org/10.1002/bscb.19670760509
Publikováno v:
Bulletin des Sociétés chimiques belges, 77 (7-8
Synthesys of 2‐chloro‐2‐methylcyclohexanone, cis‐ et trans‐2‐chloro‐6‐methyl‐cyclohexanone, trans‐2,6‐dichloro‐2‐methylcyclohexanone, 2,6,6‐trichloro‐2‐methylcyclohexanone, and related deuterated compounds, are reporte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45bb76a8406913c9a36bad09b4b0887a
https://doi.org/10.1002/bscb.19680770705
https://doi.org/10.1002/bscb.19680770705
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 78:583-588
Un nouvel alcaloide peptidique, la canthiumine 1, a ete isole du Canthium Euryoides Bull. (Rubiacees). La nature des fragments qui le constituent — N,N-dimethyl-L-phenylalanine, p-hydroxy-styrylamine, L-proline et L-threo-β-phenylserine — a ete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0df1afbe6c301869156d9de8355f8159
https://doi.org/10.1002/bscb.19690781102
https://doi.org/10.1002/bscb.19690781102
Autor:
Béchir Ben Hassine, Ricardo Martin, Jacques Pecher, Robert Ottinger, Nicole Defay, Mohamed Gorsane
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 94:425-430
The alcohols 1 to 4 were prepared with good to excellent yields. Their 1H and 13C N.M.R. spectra were recorded at different temperatures. For 1, 2 and 3, the conformational barriers corresponding to the C9'‐C1 rotation are close to 11, 14.5 and 19
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b21456cec75caf3c1d6ad468c5370c2
https://doi.org/10.1002/bscb.19850940610
https://doi.org/10.1002/bscb.19850940610
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 85:167-178
The NMR anisochrony which characterizes the diastereotopism of the CH3 groups in an isopropyl group attached to a chiral residue is defined not only in magnitude but also in sign. The absolute signs of the anisochronies were determined for two series
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19d7e645e6a7eed2e53953a041807534
https://doi.org/10.1002/bscb.19760850401
https://doi.org/10.1002/bscb.19760850401
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 73:297-299
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c082daf9058767efcb26b7e1c66b8e6
https://doi.org/10.1002/bscb.19640730316
https://doi.org/10.1002/bscb.19640730316
Publikováno v:
Phytochemistry. 48:1433-1437
Among several anthocyanins detected in the flowers of Ipomoea asarifolia, two acylated anthocyanins were isolated and studied using chemical, GC, mass spectrometric and extensive NMR methods (TOCSY-1D, DQF-COSY and HMBC measurements). The first anthc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::784da9b5f2436a9f5bfec693a36d87fb
https://doi.org/10.1016/s0031-9422(97)00805-4
https://doi.org/10.1016/s0031-9422(97)00805-4
Autor:
Renée Vanhaelen-Fastré, Mondher El Jaziri, Yanwen Guo, Maurice Vanhaelen, Bilo Diallo, Robert Ottinger
Publikováno v:
Journal of Natural Products. 59:169-172
The separation of a stem-bark extract of Taxus baccata L. cv. stricta by HSCCC resulted in several chromatographic fractions that were analyzed by ELISA using specific anti-10-deacetylbaccatin III antibodies. In addition to 10-deacetylbaccatin III an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7d0ecc1e7fc14c5371c8be020694965
https://doi.org/10.1021/np960043m
https://doi.org/10.1021/np960043m
Publikováno v:
Journal of Magnetic Resonance, Series B. 109:164-168
129 Xe NMR has been used to investigate intermolecular interactions between xenon and α-cyclodextrin in H 2 O and in DMSO. Nuclear Overhauser enhancement effects confirmed the formation of a xenon–cyclodextrin complex. Chemical shifts were measure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::363b9bf2f2c1ca0a02a5d8e466e32d43
https://doi.org/10.1006/jmrb.1995.0005
https://doi.org/10.1006/jmrb.1995.0005
Autor:
Jacques Homes, Rene Vanhaelen-Fastré, Yanwen Guo, Maurice Vanhaelen, Bilo Diallo, Mondher El Jaziri, Robert Ottinger
Publikováno v:
Scopus-Elsevier
Polyclonal antibodies raised against 2'-succinyltaxol-bovine serum albumin (BSA) conjugate were used for the immunodetection of bioactive taxoids in chromatographic fractions of the stem bark extract of Taxus baccata. In addition to taxol, cephaloman
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05e87ed0c6cc9e2a8c23d7101c53315d
https://doi.org/10.1021/np50121a005
https://doi.org/10.1021/np50121a005