1833-95-0Relevant academic research and scientific papers
SPECIAL PROPERTIES IMPARTED TO THE 9-PHOSPHABICYCLONONATRIENE SYSTEM BY A P-(2,4,6-TRI-t-BUTYLPHENYL) SUBSTITUENT; (17)O NMR SPECTRUM OF A BICYCLIC PHOSPHIRANE OXIDE
Quin, Louis D.,Yao, En-Yun,Szewczyk, Jerzy
, p. 1077 - 1080 (1987)
9-(2,4,6-Tri-t-butylphenyl)-9-phosphabicyclonona -2,4,6-triene gave an observable P-oxide with t-butyl hydroperoxide.Decomposition occurred by expulsion of the phosphorus fragment, possibly as ArP=O, rather than by the expected ring expansion to a phosphonin oxide.The (17)O NMR shift of 18.0 is the most upfield known for a phosphine oxide.
Reactivity studies of an imine-functionalised phosphaalkene; unusual electrostatic and supramolecular stabilisation of a σ2λ3-phosphorus motif via hydrogen bonding
Morales Salazar, Daniel,Gupta, Arvind Kumar,Orthaber, Andreas
supporting information, p. 10404 - 10409 (2018/08/17)
A P═C heavy-alkene analogue that is unreactive towards the addition of strong acids on its double-bond is presented; instead, a strategically located imine nitrogen on the periphery forms protonated adducts displaying hydrogen bonding interactions. These materials are significantly more stable than the parent species, demonstrating an unprecedented approach towards the stabilisation of a multiple-bonded heavy main group fragment, in this case, a phosphaalkene. An HCl adduct self-assembles with H2O into a dimeric network displaying a discrete quadrilateral hydrogen-bonded arrangement.
