17663-89-7Relevant academic research and scientific papers
The Mechanism of the Mitsunobu Azide Modification and the Effect of Additives on the Rate of Hydroxyl Group Activation
Afonso, Carlos M.,Barros, M. Teresa,Godinho, Licio S.,Maycock, Christopher D.
, p. 9671 - 9678 (2007/10/02)
The Mitsunobu azide modification has been studied by NMR using a hindered alcohol and the principle intermediates involved have been tentatively identified.The accelerated hydroxyl group activation in the presence of hydrazoic acid or of catalytic quantities of phenol gives us an insight into the reactivity of some of the intermediates involved in these reactions.
Preparation and Nuclear Magnetic Resonance Studies of Diaryloxytriphenylphosphoranes. Correlation of Substituent Effects with 31P N.M.R. Chemical Shifts
Itzstein, Mark von,Jenkins, Ian D.
, p. 2447 - 2451 (2007/10/02)
Triphenylphosphine and diisopropyl azodicarboxylate react with phenols in tetrahydrofuran or chloroform at 0 deg to give diaryloxytriphenylphosphoranes.A linear free-energy relationship has been found between the 31P n.m.r. chemical shifts of many of thes
