263872-57-7Relevant articles and documents
Peri-interactions in naphthalenes, 21. Substituent effects in (8-dimethylamino-naphth-1-yl)-and [2-(dimethylamino-methyl)phenyl]-phosphines on the 31P-NMR signal positions
Schiemenz, Guenter Paulus
, p. 185 - 202 (2000)
Contrary to claims in the literature, the 31P NMR signal positions of ortho-dimethylaminomethyl-substituted triarylphosphines do not provide evidence for hypercoordination at phosphorus; the observed highfield shifts relative to triphenylphosphine are rather due to the ortho-effect. In (8-dimethylamino-naphth-1-yl)phosphines, the signal positions similar to that of triphenylphosphine are the result of the highfield ortho-effect and a lowfield peri-substituent effect of about the same magnitude whose nature remains to be explored.
