Ni-Catalyzed C–P Coupling of Aryl, Benzyl, or Allyl Ammonium Salts with P(O)H Compounds
作者:Bo Yang、Zhong-Xia Wang
DOI:10.1021/acs.joc.8b02926
日期:2019.2.1
C–P bonds via the nickel-catalyzed cross-coupling of organoammonium salts with appropriate phosphorus nucleophiles has been developed. Aryl-, pyridyl-, benzyl-, and allyl-ammonium triflates can be employed as the electrophiles. The employed phosphorus-based nucleophiles included diaryl/dibutyl phosphine oxide, dialkylphosphonates, and ethyl phenylphosphinate. Functional groups OMe, CN, CF3, F, Cl
The reactivity of arylphosphine oxides under Bouveault-Blanc reaction conditions
作者:Ewelina Korzeniowska、Anna E. Kozioł、Elżbieta Łastawiecka、Anna Flis、Marek Stankevič
DOI:10.1016/j.tet.2017.07.004
日期:2017.8
makes use of the inexpensive sodium as the electron donor and an alcohol as the proton source, and provides an attractive alternative to reactions mediated by expensive transition metals. Under optimized conditions numerous mono- and diaryl substituted phosphine oxides were transformed into the corresponding mono- and dicyclohexyl-substituted phosphine oxides in good yields. Furthermore, the formation