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
Recherches sur la formation et la transformation des esters XXIX. Sur la vitesse d'hydrolyse des monoesters phénylphosphoniques
✍ Scribed by Emile Cherbuliez; F. Hunkeler; J. Rabinowitz
- Publisher
- John Wiley and Sons
- Year
- 1961
- Tongue
- German
- Weight
- 273 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
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.
📜 SIMILAR VOLUMES
## 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
Phenylphosphonic oxide reacts with diols to give the corresponding hydroxyalkylphenylphosphonic monoesters in very good yields.
## Abstract The phosphonylation of cyano alcohols by means of phenylphosphonic oxide is described. α‐Cyano alcohols yield exclusively the corresponding α‐carbamidoalkyl phenylphosphonic monoesters, β‐cyano alcohols yield mainly the corresponding β‐cyanoalkyl phenylphosphonic monoesters, and γ‐ and
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.
Phosphorous acid does not dehydrate tertiary alcohols at temperatures below 100 "C ; but the esterification reaction is very slow and phosphorous monoesters of tertiary alcohols cannot be obtained this way. Although this reaction is also slow with phenol, phenyl phosphorous monoester can be obtained