4820-05-7Relevant academic research and scientific papers
Kinetic acidities of some hydrocarbons by tritium NMR
Streitwieser, Andrew,Linfeng, Xie,Speers, Peter,Williams, Philip G.
, p. S209-S211 (2007/10/03)
Exchange rates in cyclohexylamine-N-3H catalyzed by cesium cyclohexylamide were determined by 3H NMR for the vinyl positions of 3,3-dimethyl-1-butene (1-trans > 1-cis > 2-) and the cyclopropyl methylene positions of norcarane (exo >
Carbon Acidity. 63. Equilibrium Ion Pair Acidities of Some Phosphorus-Substituted Carbon Acids
Streitwieser, Andrew,Juaristi, Eusebio
, p. 768 - 770 (2007/10/02)
Ion-pair C-H acidities are reported as pKCsCHA for bis(diphenylphosphino)methane (1, 31.1), (p-phenylbenzyl)diphenylphosphine (3, 31.0), p-tolyldiphenylphosphine (4, 37.9), and several of the corresponding phosphine oxides.The diphenylphosphine group is about as anion stabilizing as p-biphenyl.The Ph2P(O) group is additionally stabilizing because of enhanced ion-pair interaction.The pKCsCHA of benzyldiphenylphosphine (2) can be estimated to be about 32.
