## Abstract Hydroxy‐esters (and keto‐esters even more so) are liable to be acidolysed and not phosphorylated when heated with polyphosphoric acid.
Recherches sur la formation et la transformation des esters XXIV. Note sur la préparation de l′acide diéthylamino-1-propyl-2-phosphorique
✍ Scribed by Emile Cherbuliez; A. Yazgi; J. Rabinowitz
- Publisher
- John Wiley and Sons
- Year
- 1961
- Tongue
- German
- Weight
- 193 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Bcspruhcn mit einer Losung von 0,5 g NN-Dimethyl-p-phenylendiamin-hydrochlorid in Natriumathylatlosung (1 g Na in 100 ml Athanol). Anschliessend wird die Platte durch Bcspriihen mit dest. Wasser angefeuchtet und ca. 1 Min. vor die UV.-Lampc (ohne Filter) gehaltcn. Empfindlichkeit . < 5 y.
Herrn Prof. Dr. J. IM OBERSTEG danken wir fur sein diescr Arbeit entgeyngebrachtes Interesse und fur die Mithilfe bei der Abfassung des Manuskriptes.
📜 SIMILAR VOLUMES
## Abstract Phosphorylcholine is obtained with a good yield when 1 mole of choline or choline chloride is heated with 0,5 to 0,6 mole of pyrophosphoric acid (or the corresponding amount of polyphosphoric acid) for 20 hours at 150° under reduced pressure.
## Abstract Poly‐cyclohexanephosphonic acid is obtained very easily by heating cyclohexanephosphonic acid, under reduced pressure, at 180–190°C, for 96 to 150 hours.
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
## Abstract The synthesis and the rate of scission of some new cyanoalkyl‐phosphoric monoesters are described. In the case of β‐cyanoalkyl‐phosphoric monoesters, the monoester group is no more dephosphorylated in alkaline medium when the two H in the β position are substituted by alkyl groups.