Process for the preparation of bromoaroxyl-alkyl-(amp;bgr;- chloroalkyl) phosphates

摘要

Process for the preparation of phosphates of the formula ##STR1## wherein R represents hydrogen, alkoxy or alkyl having 1 to 8 C atoms, perfluoroalkyl having 1 to 8 C atoms, or halogen, a is 0.05 to 3.0, b is 0, 1, 2 or 3 and c is 1 or 2, by brominating the corresponding aroxyalkyl- (&bgr;-chloroalkyl) phosphates, characterized in that aroxyalkyl-(&bgr;- chloroalkyl) phosphates are reacted at temperatures between about -10. degree. and 80° C. with an approximately equimolar mixture of bromine and chlorine, especially bromine chloride.