63883-60-3Relevant academic research and scientific papers
Electrophilic bis-fluorophosphonium dications: Lewis acid catalysts from diphosphines
Holthausen, Michael H.,Hiranandani, Rashi R.,Stephan, Douglas W.
, p. 2016 - 2021 (2015)
Stepwise oxidation of 1,8-bis(diphenylphosphino)naphthalene and a series of (oligo)methylene-linked diphosphines with XeF2 followed by fluoride abstraction yields a family of compounds featuring phosphine, phosphonium and phosphorane moieties in close proximity. The bisphosphonium ions [(C10H6)(Ph2PF)2]2+ (5) and [CH2(Ph2PF)2]2+ (9a) exhibit remarkable Lewis acidity arising from the proximity of the phosphonium centers. The effectiveness of bisphosphonium dications (5, 9a-e) is examined in a series of Lewis acid catalysed transformations.
