Cyclische Diphosphorsäureester und Verfahren zu ihrer Herstellung

Cyclic diphosphate esters of formula (I) are new; in which R = methylethylene, 1,3- or 1,4-cyclohexylene or 1,3-phenylene. (I) are prepd. by (1) reacting diols of the formula HO-R-OH with POCl3; and (2) reacting the resultant diphosphoryl tetrachloride of the formula Cl2P(=O)-O-R-O-P(=O)Cl2 with 2,2...

Full description

Saved in:
Bibliographic Details
Main Author STAENDEKE, HORST. DR., 53797 LOHMAR, DE
Format Patent
LanguageGerman
Published 23.01.1997
Edition6
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:Cyclic diphosphate esters of formula (I) are new; in which R = methylethylene, 1,3- or 1,4-cyclohexylene or 1,3-phenylene. (I) are prepd. by (1) reacting diols of the formula HO-R-OH with POCl3; and (2) reacting the resultant diphosphoryl tetrachloride of the formula Cl2P(=O)-O-R-O-P(=O)Cl2 with 2,2-dimethyl-1,3-propandiol (II) for 2-12 hrs. at 20-150 degrees C in the presence of a catalyst. The reactions pref. are carried out in inert solvent and in the presence of stoichiometric amts. of suitable tert. amines as HCl acceptor. Stage (1) is also carried out in the presence of a catalyst. (Claimed)
Bibliography:Application Number: DE19951025950