Iy. Kudryavtsev et al., Catalytic activity of various Lewis acids in the phosphorylation of primary polyfluoroalkanols with phosphoryl chloride, RUSS CHEM B, 47(10), 1998, pp. 2015-2016
The catalytic activity of SnCl2, SnCl4, SbCl3, SbCl5, and BiCl3 in the reac
tion of 2,2,3,3,4,4,4-heptafluorobutanol with POCl3 was studied. The mechan
ism of this reaction is discussed. Strong Lewis acids were found to be less
active catalysts.