Par halolyse des esters, nous entendons la rBaction suivante: ester de l'acide I + sel de I'acide I1ester de I'acide I1 + sel de I'acide I. L'intervention de cette reaction B titre de processus distinct a BtB montree notamment dans le cas de la scission des esters phos-phoriques2), ou elle se produ
Recherches sur la formation et la transformation des esters XIX. Sur la phosphorolyse des groupements ester carboxylique
✍ Scribed by Emile Cherbuliez; H. Probst; J. Rabinowitz
- Publisher
- John Wiley and Sons
- Year
- 1960
- Tongue
- German
- Weight
- 435 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
The acidolysis of carboxylic esters by polyphosphoric acid is studied. Carboxylic esters heated 17 h at 100° with pyrophosphoric acide (or the corresponding amount of polyphosphoric acid) undergo very moderate acidolysis except in the case of dicarboxylic acids which yield easily intramolecular anhydrides (phthalic acid, succinic acid and maleic acid); in these cases the acidolysis is very high.
📜 SIMILAR VOLUMES
formation d'esters phosphoriques cycliques et sur la vitesse d'hydrolyse de ces esters et des esters dialcoylphosphoriques par Emile Cherbuliez, H. Probst e t J. Rabinowitz Dkdib B M. le Professeur P. KARRER B l'occasion de son 70e anniversaire (23 1V 59) I. Introduction. -Ides esters phosphoriques
## Abstract Carboxy‐alkyl phenylphosphonic monoesters are obtained very easily by selective hydrolysis (in alcaline medium) of the corresponding carbamido‐ or cyano‐alkyl phenylphosphonic monoesters and sometimes of the corresponding carbethoxy‐alkyl phenylphosphonic monoesters and sometimes of the
## Abstract Hydroxy‐esters (and keto‐esters even more so) are liable to be acidolysed and not phosphorylated when heated with polyphosphoric acid.
## Abstract The preparation of the phenylphosphonic monoesters of tribromoethanol, propargyl alcohol, glycerol, choline, menthol, and borneol is described.
The rate of hydrolysis of phenylphosphonic monoesters at different pH values (0,4,5 and 14), at 100° and in 0,1M solutions, is studied.