Convenient Mild and Selective Hydrophosphination of Functionalized Alkenes: Access to P,O and P,S Derivatives

Abstract

The synthesis of new functionalized phosphines is carried out through the easy and atom economic hydrophosphination reaction of functionalized alkenes such as vinyl ethers and vinyl thioethers. The reactions occur under mild conditions without catalyst using phosphine-boranes as hydrophosphinating agents.

Key words

addition reactions - alkenes - boron - phosphorus - radical reactions

References

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7

Transfer of the borane group from a phosphorus to an oxygen atom was already mentioned in the literature: see ref. 6.

12

With a simple alkene such as oct-1-ene, the hydrophos­-phination could be carried out at 80 ˚C without any decomplexation and oxidative side reactions (see ref. 3b).