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BF 3  reacts at 0° with tertiary phosphites, P(OR) 3 , stepwise to give mono- and difluorophosphites, FP(OR)s and F 2 P(OR), by ligand exchange. A new method for the preparation of monoand difluorophosphites is described.  31 P and  11 B N.M.R. spectra are reported.

zeitschrift für naturforschung b

Zur Reaktion zwischen Bortrifluorid und tertiären Phosphiten / The Reaction between Boron Trifluoride and Tertiary Phosphites: Darstellung von Mono- und Difluorphosphiten / Preparation of Mono- and Difluorophosphites