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.
Recherches sur la formation et les transformations des esters. XI. Note sur la variation de la vitesse d'hydrolyse des acides monoalcoylphosphoriques en fonction du pH
✍ Scribed by Emile Cherbuliez; J. Rabinowitz
- Publisher
- John Wiley and Sons
- Year
- 1957
- Tongue
- German
- Weight
- 174 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Some arguments are advanced to show that the curve representing the apparent constants of the rate of hydrolysis of monoalkyl phosphoric acids as function of the pH offers not only the well known minimum at about pH 0 and maximum at pH 4·5, but a second minimum at high pH. The interpretation of this curve requires the intervention of at least three mechanisms of hydrolysis, such as acidolysis, halolysis and basolysis, as postulated earlier by the authors, apart from hydrolysis sensu stricto.
📜 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 Two mono‐aminoalkyl‐phosphoric acids (aminoethylphosphoric acid and 3‐amino‐1‐propyl‐phosphoric acid) are shown to be hydrolyzables in alcaline medium.
0‐, __m__‐ and __p__‐sulfophenylphosphoric acids have been prepared from PC1~5~ and the corresponding phenolsulfonic acids. The rates of hydrolysis of these phosphoric esters at pH 0 (HCl 1N), 4,5 and 14 (NaOH 1N) and at 100° have been established.
## Abstract Hydroxy nitriles when treated with polyphosphoric acid yield the corresponding carbamido‐alkyl phosphoric acids; but when treated with POCl~3~ in the presence of a tertiary base they yield the corresponding cyano‐alkyl phosphoric acids. β‐cyanoethyl phosphoric acid is very easily dephos
## Abstract Tetracoordinated acids of phosphorus (acids of type A) where the P atom is bonded to 4 O, or to 3 O and 1 C, are not esterificd when heated with alcohols.