1,3,5,2,4,6-Triazatriphosphorine 2,2,4,4,6,6-hexahydro

For the first compound a solution of 13.3 g (0.036 mole) of 2,4,6-trichloro-2,4,6-tris(dimethylamino)-2,2,4,4,6,6-hexahydro-l,3,5,2,4,6-triazatriphosphorine in 150 mL of 1,2-dichloroethane, previously dried for 24 hours over CaS04, is stirred efficiently with a Teflon-bladed paddle stirrer in a250-mL, three-necked flask. The flask also carries a water-cooled condenser topped by a CaCl2 drying... 

A solution of 29,5 g (0.089 mole) of 2,2-dichloro-4,6-bis(dimethylamino)-4,6-difluoro-2,2,4,4,6,6-hexahydro-l,3,5,2,4,6-triazatriphosphorine in 200 mL of nitromethane, dried over CaS04, is refluxed with vigorous stirring for 20 hours with 40 g of a KSO2F/KF mixture. The solution is then filtered and the solvent is evaporated under reduced pressure. The residue is extracted with five 60-mL portions of petroleum ether (40-60° fraction) and the tetrafluorotriphos-phazene is obtained as a liquid by evaporation of the solvent. The yield is 20 g(75%). 

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