peri-Interactions in Naphthalenes, 10 [1]. In Search of Independent Criteria for N→P Bonding: Protonation Studies on (8-Diethylamino-naphth-1-yl)-diphenyl-phosphine
作者:Güter Paulus Schiemenz、Christian Näther、Simon Pörksen
DOI:10.1515/znb-2003-0710
日期:2003.7.1
Enhancement of the basicity of the amino group in (8-dialkylamino-naphth-1-yl)-diphenylphosphines diverts protonation from the P to the N atom. Thus the cation 8-Et2N+(H)-C10H6-PPh2 becomes available whose 1H and 31P NMR spectra provide arguments against dative N→P interactions in the phosphines and their quaternary phosphonium salts. Likewise, the X-ray structure of 8-Et2N-C10H6-PPh2 does not indicate
(8-二烷基氨基-萘-1-基)-二苯基膦中氨基碱性的增强将质子化从 P 转移到 N 原子。因此,阳离子 8-Et2N+(H)-C10H6-PPh2 变得可用,其 1H 和 31P NMR 光谱提供了反对膦及其季鏻盐中的配价 N→P 相互作用的论据。同样,8-Et2N-C10H6-PPh2 的 X 射线结构也没有表明这种相互作用。