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Recherches sur la formation et la transformation des esters XLV. Sur la phosphonylation des hydroxyacides, des hydroxynitriles et des hydroxyesters

✍ Scribed by Emile Cherbuliez; Sl. Čolak-Antić; F. Hunkeler; J. Rabinowitz

Publisher
John Wiley and Sons
Year
1963
Tongue
German
Weight
345 KB
Volume
46
Category
Article
ISSN
0018-019X

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✦ Synopsis

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 corresponding carbethoxy‐alkyl phenylphosphonic monoesters and sometimes of the corresponding carbethoxy‐alkyl phenylphosphonic monoesters. This general procedure cannot be carried out when the −CONH~2~, −CN or −COOR groups are fixed on the C next to the one bearing the phenylphosphonic monoester group; in this case, the monoester group is also very quickly clived in alcaline medium.

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Les monoesters des acides phosphoniques sont peu connus. On en trouve quelques exemplcs dans la litteratwe, mais leur synthkse se fait par des mCthodes tout a fait particuliPrcs. Ainsi, par action de C,H,PCl, sur C,H,OH on obtient l'ester monokthyl-phenylphosphonique2) ; C,H,POCl, trait6 par une mol