Macroligands in aqueous organometallic catalysis

6 BIS[2-(DIPHENYLPHOSPHINO)ETHYL]AMINE -A VERSATILE STARTING MATERIAL FOR CHELATING BISPHOSPHINES 

The synthetic procedures are relatively simple and productive, the phosphonate group is chemically stable and non-coordinating, so in the future these compounds can be expected to play a more significant role in aqueous organometallic chemistry. 

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