Functional Applications of Alkylphosphine Derivatives -
Phosphonium Ionic Liquids as Solvents for Hydroformylation - References

1) Journal of Molecular Catalysis, 43 (1987) p. 65-77
Syngas Reactions Part XI. The ruthenium "melt" catalyzed oxonation of internal olefins
John F Knifton

2) Chem. Commun., 1998, 21, 2341-2342
Clean catalysis with ionic solvents-phosphonium tosylates for hydroformylation
N Karodia, S Guise, C Newlands and Jo-Ann Anderson