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Neier, Reinhard
Nom
Neier, Reinhard
Affiliation principale
Fonction
Professeure ordinaire
Email
Reinhard.Neier@unine.ch
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Voici les éléments 1 - 6 sur 6
- PublicationMétadonnées seulement
- PublicationMétadonnées seulement
- PublicationMétadonnées seulementA Chemical Synthesis of Porphobilinogen Imitating the Pathway Proposed by Shemin for the Biosynthesis: Comparing Inhibtion Studies with Investigations of Chemical Reality(1998)
;Bobal, Pavel ;Chaperon, André ;Neels, Antonia; - PublicationMétadonnées seulement
- PublicationMétadonnées seulementThe preparation and the cascade reactions of N-butadienyl-N-alkylketene N,O-tert-butyldimethylsilyl acetals(: Pergamon-Elsevier Science Ltd, 1996)
;Franz, Andreas ;Eschler, Pierre Yves ;Tharin, ManuelThe preparation of N-butadienyl-N-alkylketene N,O-tert-butyldimethylsilyl acetals (11a-d) from readily available starting materials is described. The cascade Diels-Alder reaction followed by acylation of these ketene acetals yields bicyclic and tricyclic products 7, 13a,b and 14c,d with high diastereoselectivity. Copyright (C) 1996 Elsevier Science Ltd - PublicationMétadonnées seulementTandem cycloadditions of N,O-ketene N-1,3-butadienyl-N-alkyo-O-silylacetals with C-60: A straightforward stereoselective synthesis of bicyclic derivatives of 1,2,3,4-tetrahydrobuckminsterfullerene(: Electrochemical Society Inc, 1996)
;Franz, Andreas ;An, Yi-Zhong ;Ganapathi, Padma; ;Rubin, Yves ;Kadish, K. M.Ruoff, R. S.We have studied the reactivity of the N,O-ketene N-1,3-butadienyl-N-alkyl-O-silylacetals 1a-e with C-60 which proceeds through a tandem process to give the adducts 2a-e with high diastereoselectivity. The addition order of these tandem reactions has been evaluated, The structures of compounds 2a-e were determined from the H-1 and C-13 NMR shifts and from the H-H coupling patterns, while the stereochemistry was deduced from 2D T-ROESY NMR experiments. The proposed mechanism for the Michael-type addition step is a single electron transfer, and the source of the C-60-attached proton is discussed.