FLUOROALKOXY CYCLIC PHOSPHONITRILATE, PRODUCTION OF SAID SUBSTANCE AND ROTARY PUMP OIL CONSISTING ESSENTIALLY OF SAID SUBSTANCE

摘要

NEW MATERIAL:A compound expressed by formula I (n is 3 or 4; m is as follows; 1<=m<=2n-1). EXAMPLE:Tetrakis(1, 1,3-trihydroperfluorobutyloxy)tetrakis(1,1,5-trihydroperfluo ropentyloxy)cyclotetraphosphonitrilate. USE:A rotary pump oil. PREPARATION:1,1,3-Trihydroperfluorobutanol and 1,1,5-trihydroperfluoropentanol are reacted with phosphonitrile chloride trimer or/and phosphonitrile chloride tetramer while slowly adding sodium hydride thereto.