Evidence for anionic protection of phosphenium centres
Abstract
The new phosphenium salt [P(NPri2)2][BPh4] has been identified in solution and observed to react with chlorinated solvents, including a facile oxidative addition of CH2Cl2 to the cation; in contrast, similar solutions of the [GaCl4]– salt are indefinitely stable indicating that the gallate anion suppresses the reactivity of the cation.