Zobrazeno 1 - 10 of 23 pro vyhledávání: '"J. M. Van Der Toorn"'
1
A proton magnetic resonance study of the influence of the solvent on the rotation about the carbamate amide bond in N-(benzyloxycarbonyl)-L-proline t-butyl ester
Autor: J. M. Van Der Toorn, E. W. B. De Leer
Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 94:119-122
The NMR spectrum of N-(benzyloxycarbonyl)-L-proline t-butyl ester shows two t-butyl signals of slowly interconverting syn and anti rotamers. The t-butyl signals have been assigned to the syn and the anti form by using Eu(fod), as a shift reagent. The
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c1836f63d0b68394ba4851284dc4d0b
https://doi.org/10.1002/recl.19750940602
Zobrazit plný text záznamu
2
13C NMR study of the complex formation of sorbitol (glucitol) with multivalent cations in aqueous solution using lanthanide(III) nitrates as shift reagents
Autor: A. Sinnema, H. van Bekkum, Antonius P.G. Kieboom, J. M. Van Der Toorn
Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 96:35-37
Complexation of sorbitol (glucitol) in aqueous solutions with the lanthanide ions LaIII, PrIII, EuIII and YbIII, as model systems for the complexation with the isosteric CaII, was studied by 13C NMR spectroscopy. Ytterbium(III) nitrate proved to be t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::66cc0be0a08721a153fddb6a00a6f1b4
https://doi.org/10.1002/recl.19770960203
Zobrazit plný text záznamu
3
Evaluation of the ability of a commercial system to identifyAcinetobacter genomic species
Autor: L. Dijkshoorn, C. P. A. van Boven, J. M. Van Der Toorn, Alexandra T. Bernards
Publikováno v: European Journal of Clinical Microbiology & Infectious Diseases. 15:303-308
A collection of 130 Acinetobacter strains identified by DNA hybridization to 18 different genomic species was used to assess the ability of the API 20NE system (bioMérieux, France) to identify Acinetobacter genomic species and to determine its accur
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86b3209acaa81f17b94e41e3f689c083
https://doi.org/10.1007/bf01695662
Zobrazit plný text záznamu
4
Phenotypic characterisation of Acinetobacter strains of 13 DNA-DNA hybridisation groups by means of the Biolog system
Autor: B. R. Bochner, L. Dijkshoorn, Alexandra T. Bernards, C. P. A. van Boven, J. M. Van Der Toorn
Publikováno v: Journal of Medical Microbiology. 42:113-119
Surmmary A collection of 129 Acinetobacter strains belonging to DNA groups (genomic species) 1–14 (1–7 and 10–12 sensu Bouvet and Grimont; 8 and 13–14 sensu Tjernberg and Ursing) were investigated for their ability to oxidise 95 carbon source
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d8432e9447d571dd7c909a010ed9d10
https://doi.org/10.1099/00222615-42-2-113
Zobrazit plný text záznamu
5
4-Methylprotoadamant-4-en-2-one: An unexpected product from the reaction of l-methyladamantan-2-one with sodium azide and methanesulfonic acid
Autor: J. M. Van Der Toorn, Joop A. Peters, H. van Bekkum
Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 94:122-123
4-Methylprotoadamant-4-en-2-one was isolated from the reaction of 1-methyladamantan-2-one with sodium azide and methanesulfonic acid. A side product of this reaction is probably 4-methyleneprotoadamantan-2-one.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::436dc75ed231e2b04e91fc3160a63090
https://doi.org/10.1002/recl.19750940603
Zobrazit plný text záznamu
8
Synthesis and conformation of some 2,4-dioxa- and 2,4-dioxa-3-silabicyclo[3.3.1]nonanes
Autor: Joop A. Peters, Th. M. Wortel, W.M.M.J. Bovée, H.P. Rozema, J. M. Van Der Toorn, P.E.J. Peters-Van Cranenburgh, H. van Bekkum
Publikováno v: Tetrahedron. 38:3641-3647
The conformation of the title compounds established by 13 C and 1 H NMR spectroscopy shows that replacement of the 2- and 4-methylene groups in bicyclo[3.3.1]nonane by ether oxygen atoms strongly destablizes the cc conformation: in 2-oxabicyclo[3.3.1
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::73aa56aa1cbfcfb87f9fcefff3c8e7a1
https://doi.org/10.1016/0040-4020(82)80072-0
Zobrazit plný text záznamu
9
Conformational analysis of 7-alkyl-3-oxabicyclo-[3.3.1]nonanes and complexes with lanthanide shift reagents
Autor: H. van Bekkum, J. M. Van Der Toorn, Joop A. Peters, P.E.J. Peters-Van Cranenburgh, Th. M. Wortel
Publikováno v: Tetrahedron. 34:2217-2222
The conformation of 3-oxabicyclo[3,3.1]nonane and of some of its 7α- and 7β-alkyl substituted derivatives has been studied with the use of 13C and 1H NMR spectroscopy. A comparison is made with the carbocyclic analogues; it turns out that the repla
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8abc72217a71ceaa7c0a8c53251a8790
https://doi.org/10.1016/0040-4020(78)89031-0
Zobrazit plný text záznamu
10
Chair-boat equilibria in bicyclo[3.3.1]nonane and some 3- and 3,7-substituted derivatives
Autor: J. M. Van Der Toorn, B. van de Graaf, Joop A. Peters, H. van Bekkum, Jan M. A. Baas
Publikováno v: Tetrahedron. 34:3313-3323
ΔG-Values for conformational equilibria in 3,7-substituted bicyclo[3.3.1]nonanes have been obtained by means of epimerisation experiments ( cc α bc ) and by variable temperature 13 C NMR ( bc α bb ). The results of these experiments fit well with
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::830bd95fcfd4be44ff4e8331c5c6eb80
https://doi.org/10.1016/0040-4020(78)80250-6
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje