Journal of Fluorine Chemistry p. 99 - 105 (1990)
Update date:2022-08-11
Topics:
Gruber, Matthias
Schmutzler, Reinhard
The reaction of λ3-phospha-diazetidin-thione, 1 with hexafluoroacetone (HFA) furnished not only the expected addition product, the λ5P-perfluoropinacolyl phosphorane, 2. In addition, HFA was observed to cause {A figure is presented} exchange in 2, and exclusive formation of a urea derivative, 3, was noted upon prolonged interaction of HFA with 2. Likewise, N,N,N′,N′,-tetramethylthiourea, 1, was found to be converted to N,N,N′,N′-tetrarmethylurea, 5, by HFA. The reactions were followed by 1H-, 13C-, 19F- and 31P-n.m.r. spectroscopy.
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