930301-82-9Relevant articles and documents
A Radical Mechanism for Frustrated Lewis Pair Reactivity
Liu, Liu (Leo),Cao, Levy L.,Shao, Yue,Ménard, Gabriel,Stephan, Douglas W.
supporting information, p. 259 - 267 (2017/09/05)
The frustrated Lewis pairs (FLPs) derived from tBu3P and E(C6F5)3 (E = B, Al) react with pO2C6Cl4 and Ph3SnH to give [tBu3POC6Cl4OE(C6F5)3] (E = B 1, Al 2), [tBu3PSnPh3][HB(C6F5)3] 3, and [tBu3PSnPh3][(μ-H)(Al(C6F5)3)2] 4. These products form via the accepted two-electron process involving a transient “encounter complex.” In contrast, the corresponding reactions of Mes3P and E(C6F5)3 (E = B, Al) with pO2C6Cl4 give [(Mes3POC6Cl4OE(C6F5)3] (E = B 8, Al 9); however, the identification of the intermediates [Mes3P·]2[(C6F5)3EOC6Cl4OE(C6F5)3] (E = B 5, Al 6) supports a mechanism that proceeds via a single-electron transfer process. This is further supported by the reactions of Mes3P and E(C6F5)3 (E = B, Al) with Ph3SnH, which yielded [Mes3PH][HB(C6F5)3] 10 and [Mes3PH][(μ-H)(Al(C6F5)3)2] 11, respectively, with the concurrent formation of Ph3SnSnPh3.
Facile heterolytic cleavage of dihydrogen by phosphines and boranes
Welch, Gregory C.,Stephan, Douglas W.
, p. 1880 - 1881 (2007/10/03)
The facile heterolytic cleavage of H2 is readily achieved at room temperature by the cooperative action of the Lewis acidic borane and Lewis basic phosphine, where the steric congestion precludes quenching of the acid and base via adduct formation. Copyright
