Les esters sulfuriques d'aminoalcools sont relativement peu connus. Les diesters n'ont pas encore CtC CtudiCs ; quant aux monoesters, quelques-uns ont Ct6 ddcrits, mais aucune Ctude systkmatique n'en a CtC: publibe. Le monoester sulfurique de l'iithanolamine (amino-2-6thanol ou colamine) a fait l'o
Recherches sur la formation et la transformation des esters XIII. Sur la réaction des aminoalcools avec l'acide polyphosphorique:phosphorylation et/ou cyclisation
✍ Scribed by Emile Cherbuliez; J. Rabinowitz
- Publisher
- John Wiley and Sons
- Year
- 1958
- Tongue
- German
- Weight
- 422 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
In presence of pyro‐ or polyphosphoric acid at high temperature and low pressure, the aminoalkohols can undergo three types of reaction: (A) Phosphorylation, (B) Simultaneous phosphorylation and condensation, (C) Condensation.
📜 SIMILAR VOLUMES
## Abstract The phosphorylation of hydroxy groups by polyphosphoric acids is shown to be inhibited by carboxyl functions, but the phosphorylation of hydroxy acids can be realized by using their esters, amides or nitriles; the phosphorylated derivatives obtained yield the phosphohydroxy acids either
## Abstract The action of polyphosphoric and orthophosphoric acids on glycols and hydroxy‐ethers is described. Apart the phosphorylation of these compounds, some of the side reactions which may occur (etherification of the hydroxy‐compound, scission of the hydroxy‐ether, etc.) are studied.
## Abstract The authors describe the isolation of cyclic phosphoric esters from the complex mixture produced by the treatment of certain glycols with polyphosphoric acid, mixture which contains in larger amounts hydroxyalkylphosphoric esters. In this way, trimethylenephosphoric acid (yield 15,8%) a
71. Recherches sur la formation et la transformation des esters LVIII [l] Sur la rkaction de l'isothiocyanate de phknyle avec quelques diols par Emile Cherbuliez, J. Marszalek et J . Rabinowitz (8 I11 65) Les dkrivks thiocarbamylks d'amines, de thiols et d'alcools prCsentent un grand, intBrCt soit