105785-75-9Relevant articles and documents
Development of a redox-free Mitsunobu reaction exploiting phosphine oxides as precursors to dioxyphosphoranes
Tang, Xiaoping,Chapman, Charlotte,Whiting, Matthew,Denton, Ross
supporting information, p. 7340 - 7343 (2014/07/07)
The development of the first redox-free protocol for the Mitsunobu reaction is described. This has been achieved by exploiting triphenylphosphine oxide-the unwanted by-product in the conventional Mitsunobu reaction-as the precursor to the active P(v) coupling reagent. Multinuclear NMR studies are consistent with hydroxyl activation via an alkoxyphosphonium salt.
Bis(neopentyloxy)triphenylphosphorane: A Versatile, Nonalkylating Cyclodehydration Reagent
Kelly, Jeffery W.,Evans, Slayton A.
, p. 5490 - 5492 (2007/10/02)
Bis(neopentyloxy)triphenylphosphorane (BNTP; 31P δ -58.3) is prepared in 48percent yield by reaction of 2 equiv of lithium neopentoxide with dibromotriphenylphosphorane in anhydrous dichloromethane from -78 to 25 deg C.BNTP smoothly converts a variety of diols, 2-aminoethanol, and 4-mercaptobutanol to the corresponding heterocycles in excellent yields (>95percent) by 13C and 31P NMR analysis.