Zobrazeno 1 - 10 of 209 pro vyhledávání: '"H. Mispreuve"'
4
Ionisation chimique De Structures Hydroxypyridines
Autor: Robert Flammang, Joan Ellison, A. Maquestiau, Y. Van Haverbeke, Judit Frank, H. Mispreuve, Alan R. Katritzky, Zoltán Mészáros
Publikováno v: Bulletin des Sociétés Chimiques Belges. 88:395-414
“Collision Induced Dissociation/Mass analyzed Ion Kinetic Energy” (CID/MIKE ) spectrometry is applied to study the structure of cations generated by the chemical ionisation of hydroxypyridines and related compounds. The method described allow, in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6fb43839f1d4bf46e2436dd88f57a8ce
https://doi.org/10.1002/bscb.19790880604
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5
New High Resilience Slabstock Technologies Based on High Performance Polyols
Autor: Philippe M. A. Knaub, H. Mispreuve
Publikováno v: Journal of Cellular Plastics. 29:443-444
The Dow Chemical Company has developed a new proprietary technology that makes it possible to produce high molecular weight polyether polyols with reduced by-products. This paper reviews the use of this new generation of High Performance Polyols (HPP
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::044345792694106ff1e1e6e214dd0d72
https://doi.org/10.1177/0021955x9302900544
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7
The gas-phase pinacol rearrangement and related reactions in organic cations generated by chemical ionisation
Autor: I. Howe, R. Flammang, H. Mispreuve, A. Maquestiau, John H. Beynon, M. Flammang-Barbieux
Publikováno v: Tetrahedron. 36:1993-1998
Reactions which simulate acid catalysed rearrangements in solution have been demonstrated in organic cations generated by chemical ionisation in the mass spectrometer. The pinacol-pinacolone rearrangement has been shown to occur following protonation
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1b15dae6d48833feb896edbd93bfca65
https://doi.org/10.1016/0040-4020(80)80212-2
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9
Composition sterolique et morphogeneses reproductrices chez Gnomonia leptostyla
Autor: H. Mispreuve, A. Lablache-Combier, R. Flammang, A. Maquestiau, J. Fayret, Y. Van Harverbeke, J. Alais, L. Lacoste
Publikováno v: Phytochemistry. 18:431-435
Sterol components of Gnomonia leptostyla mycelia have been investigated from in vitro cultures in which sexual and asexual morphogenesis are induced by temperature and light conditions. The nature and content of free sterols and sterol esters were de
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac686d3c1d940ab076c9c23b9c44c917
https://doi.org/10.1016/s0031-9422(00)81882-8
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10
Etude du mécanisme de perte d'ethylène (propène) desN-ethyl (propyl) bromo-1,2,4-triazoles
Autor: Robert Flammang, H. Mispreuve, André Maquestiau, Yves Van Haverbeke
Publikováno v: Organic Mass Spectrometry. 12:205-208
Le C-bromotriazole est genere en ses trois formes tautomeres par elimination d'ethylene a partir de composes N-ethyles et ces ions tautomeres conservent leur structure avant toute fragmentation ulterieure. L'analyse de spectres ‘MIKE’ et ‘CID
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::141bb6730a74ec4feb69f32fc81671d7
https://doi.org/10.1002/oms.1210120405
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