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Nghiep Le-Hong

Université de Montréal

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Carbohydrate Research | 1973

Dérivés C-glycosyliques : Partie XI. Étude de la chloration d'oximes d'aldéhydo-sucres☆

Jean M. J. Tronchet; Françoise Barbalat-Rey; Nghiep Le-Hong; Ulrich Burger

Abstract The chlorination of oximes of aldehydo sugars takes place via an S E 2′ mechanism and gives the corresponding gem -chloronitroso derivatives which are in equilibrium with their dimers. The study of the monomer formation from the dimer by n.m.r. spectroscopy at various temperatures indicates a positive difference of standard entropy. The gem -chloronitroso derivatives obtained isomerize into hydroximoyl chlorides.

Carbohydrate Research | 1980

Chemistry of the glycosidic linkage. Exceptionally fast and efficient formation of glycosides by remote activation

Christian Bacquet; Nghiep Le-Hong

Helvetica Chimica Acta | 1973

Utilisation d'ylides du phosphore en chimie des sucres. XV. Synthèse de sucres à insaturation terminale†

Jean M. J. Tronchet; Bruno Baehler; Hansjörg Eder; Nghiep Le-Hong; Françloise Perret; Joëlle Poncet; Jean‐Bernard Zumwald

Helvetica Chimica Acta | 1971

Equilibres conformationnels de glucides au niveau de liaisons σ sp2-sp3 C-C. III Dérivés d'oximes d'aldéhydo-sucres utilisation de tris-dipivaloylméthanato-europium†

Jean M. J. Tronchet; Françoise Barbalat-Rey; Nghiep Le-Hong

Helvetica Chimica Acta | 1975

Dérivés C‐glycosyliques XXVI. Nouvelles voies d'accès à des C‐nucléosides isoxazoliques et thiophéniques Communication préliminaire

Jean M. J. Tronchet; Olivier R. Martin; Jean‐Bernard Zumwald; Nghiep Le-Hong; Françoise Perret

Helvetica Chimica Acta | 1975

Dérivés C-glycosyliques. XXVI. Nouvelles voies d'accés a des c-nucléosides isoxazoliques et thiophéniques

Jean M. J. Tronchet; Olivier R. Martin; Jean‐Bernard Zumwald; Nghiep Le-Hong; Françoise Perret

Helvetica Chimica Acta | 1970

Utilisation d'ylides du phosphore non stabilisés en chimie des sucres. IV. Nouveaux exemples de sucres méthylthiovinyliques terminaux. Communication préliminaire†‡

Jean M. J. Tronchet; Nghiep Le-Hong; Françoise Perret

ChemInform | 1975

C-GLYKOSIDE 26. MITT. NEUER ZUGANG ZU ISOXAZOL- UND THIOPHEN-C-NUCLEOSIDEN

Jean M. J. Tronchet; Olivier R. Martin; Jean‐Bernard Zumwald; Nghiep Le-Hong; Françoise Perret

ChemInform | 1973

VERWENDUNG VON PHOSPHORYLIDEN IN DER ZUCKERCHEMIE 15. MITT. SYNTH. VON ENDSTAENDIG UNGESAETTIGTEN ZUCKERN

Jean M. J. Tronchet; Bruno Baehler; Hansjoerg Eder; Nghiep Le-Hong; Françoise Perret; Joëlle Poncet; Jean‐Bernard Zumwald

ChemInform | 1972

KONFORMERENGLEICHGEWICHTE VON KOHLENHYDRATEN AUF DEM NIVEAU VON SIGMA SP(2)-SP(3)-C-C-BINDUNGEN 3. MITT. OXIMDERIVATE VON ALDEHYD-ZUCKERN, ANWENDUNG VON TRIS-(DIPIVALOYLMETHANATO)-EUROPIUM

Jean M. J. Tronchet; Françoise Barbalat-Rey; Nghiep Le-Hong

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Jean M. J. Tronchet

University of Geneva

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Françoise Barbalat-Rey

University of Geneva

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Olivier R. Martin

University of Orléans

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Bruno Baehler

Novartis

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Ulrich Burger

University of Geneva

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Christian Bacquet

Université de Montréal

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Olivier R. Martin

University of Orléans

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