𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Utilisation d'ylides du phosphore en chimie des sucres. XII Dérivés du D-arabino-hexène-1-tétrol-3,4,5,6

✍ Scribed by J. M. J. Tronchet; Br. Baehler

Publisher
John Wiley and Sons
Year
1972
Tongue
German
Weight
589 KB
Volume
55
Category
Article
ISSN
0018-019X

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Utilisation d'ylides du phosphore non st
Utilisation d'ylides du phosphore non stabilisés en chimie des sucres VI. Sucres ramifiés dérivés des di-O-isopropylidène-1,2:5,6-α-D-ribo-et-α-D-xylo-hexofurannosul-3-oses
✍ J. M. J. Tronchet; J. M. Bourgeois 📂 Article 📅 1970 🏛 John Wiley and Sons 🌐 German ⚖ 979 KB

## Abstract The __cis__ and __trans__ isomers of 3‐deoxy‐1,2:5,6‐di‐O‐isopropylidene‐3‐C‐methylthiomethylene‐α‐D‐__xylo__‐ and ‐α‐D‐__ribo__‐hexofuranoses have been prepared by treatment of 1,2:5,6‐di‐O‐isopropylidene‐α‐D‐__xylo__‐ and ‐α‐D‐__ribo__‐hexofuran‐3‐uloses with methylthiomethylene‐triph

Utilisation d'ylides du phosphore non st
Utilisation d'ylides du phosphore non stabilisés en chimie des sucres. V. Sucres ramifiés dérivés du méthyl α-D-lyxo-hexopyrannosul-4-oside. Communication préliminaire
✍ J. M. J. Tronchet; J. M. Chalet 📂 Article 📅 1970 🏛 John Wiley and Sons 🌐 German ⚖ 338 KB 👁 1 views

## Abstract __Cis__ and __trans__‐methyl‐4‐deoxy‐2, 3‐O‐isopropylidene‐6‐O‐methyl‐4‐methylthio‐methylene‐α‐D‐__lyxo__‐hexopyra‐nosides are prepared by a __Wittig__ reaction. Methods are described for the determination of the configuration of the geometrical isomers whose __Raney__‐Nickel reduction

Utlisation d'ylides du phosphore en chim
Utlisation d'ylides du phosphore en chimie des sucres. XIII. Synthèse de dérivés des hydroxyméthyl-3-D-glucose et-D-galactose et de composés voisins
✍ J. M. J. Tronchet; J. M. Bourgeois 📂 Article 📅 1972 🏛 John Wiley and Sons 🌐 German ⚖ 555 KB

## Abstract The treatment of the 1, 2:5, 6‐di‐O‐isopropylidene‐α‐D‐__ribo__‐ and __xylo__‐hexofuranos‐3‐uloses with cyanomethylenetriphenylphosphorane led in each case, and in almost quantitative yields, to a pair of geometrical isomers of C‐cyanomethylenic sugars having respectively the __ribo__ a

Utilisation d'ylides du phosphore non st
Utilisation d'ylides du phosphore non stabilisés en chimie des sucres. II. Action du méthylthiométhylène-triphénylphosphorane sur les aldéhydo-surces
✍ J. M. J. Tronchet; Mme S. Jaccard-Thorndahl; Br. Baehler 📂 Article 📅 1969 🏛 John Wiley and Sons 🌐 German ⚖ 289 KB 👁 1 views

10 Boulebard d'Yboy, 1205 G e n h c (24 TIT 69) Suvn~nnary. The action of methplthioiiicthylene-triphenylphosphorane on 2,3:4,5-di-(I-isopropylidene-aldehyde-1.-arabinose Icd with good yields to t h c corresponding unsaturatcd sugar which underwent electrophilic addition with a high regiospecificit

Utilisation d'ylides du phosphore en chi
Utilisation d'ylides du phosphore en chimie des sucres, X. Synthèse stéréospécifique de l'épimère en C3 du streptose et d'autres sucres ramifiés, dérivés de désoxy-5-pentoses, à groupements gem-hydroxy-formyle ou gem-hydroxy-hydroxyméthyle
✍ J. M. J. Tronchet; R. Graf; R. Gurny 📂 Article 📅 1972 🏛 John Wiley and Sons 🌐 German ⚖ 693 KB

## Abstract The synthesis of branched‐chain sugars of the __gem__‐hydroxy‐formyl and the __gem__‐hydroxy‐hydroxymethyl types is described. A 5‐deoxy‐1,2‐O‐isopropylidene‐furanos‐3‐ulose is treated with cyanomethylene‐triphenyl‐phosphorane, yielding the two geometrical isomers of the corresponding b