651296-22-9Relevant academic research and scientific papers
A Novel and Convenient Synthetic Route to a 9-Phosphatriptycene and Systematic Comparisons of 9-Phosphatriptycene Derivatives
Kobayashi, Junji,Agou, Tomohiro,Kawashima, Takayuki
, p. 1144 - 1145 (2003)
A novel synthetic route to a 9-phosphatriptycene was developed by utilizing ortho-lithiation of a triarylphosphine oxide as a key step. Systematic comparisons of the NMR spectra of 9-phosphatriptycene derivatives indicated the large s character of the lone pair orbital or the phosphorus-chalcogen bonds of the 9-phosphatriptycene derivatives.
Synthesis, structure, and reactivity of a symmetrically substituted 9-Phosphatriptycene oxide and Its derivatives
Agou, Tomohiro,Kobayashi, Junji,Kawashima, Takayuki
, p. 437 - 446 (2004)
Novel 9-phosphatriptycenes were synthesized by utilizing ortho-lithiation of a triarylphosphine oxide as a key step. The structural analysis of the 9-phosphatriptycene oxide revealed its highly distorted structure around the phosphorus atom, which is consistent with the up-field shift in the 31P NMR spectrum. The 9-phosphatriptycene and its chalco-genides were synthesized by ordinary methods, and the spectral comparisons of these chalcogenides indicated the large s-character of the lone-pair orbital or the phosphorus-chalcogen σ bonds of those species. The 9-phosphatriptycene oxide was reacted with lithium naphthalenide to give the ring-opened products.
