Phospha-s-triazines. I. Syntheses and properties of mono(diarylphospha)-s-triazines |
| |
Authors: | RH Kratzer KJL Paciorek J Kaufman TI Ito |
| |
Institution: | Ultrasystems, Inc., 2400 Michelson Drive Irvine, California 92715 U.S.A. |
| |
Abstract: | A series of monophospha-s-triazines, namely l-diphenylphospha-3,5-bis(perfluoro-n-heptyl)-2,4,6-triazine, 1-diphenylphospha-3,5-bisC3F7-OCF(CF3)CF2]xOCF(CF3)]-2,4,6-triazine (x = 1 and 2), and the penta-fluorophenyl-substituted analogues were prepared, in yields of 50-75%, from the respective imidoylamidines and trichlorophosphoranes. The physical properties of the corresponding phenyl and pentafluorophenyl monophospha-s-triazines did not differ significantly; the perfluoroalkyl-substituted materials were low melting solids whereas the perfluoroalkyl-ether-containing compositions were liquids. Preliminary degradative studies showed these compounds to be thermally and oxidatively stable. The l-diphenylphospha-3,5-bisC3F7OCF(CF3)CF2OCF(CF3)]-2,4,6-triazine was found to be an effective anti-corrosion additive for perfluoroalkylether type fluids. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|