Zwitterionic phosphonium ligands: synthesis, characterization and application in telomerization of 1,3-butadiene

Novel zwitterionic phosphonium alkylsulfonate ligands are chemoselectively synthesized from N-heterocyclic phosphines and cyclic sulfones in one step in good to excellent yields. Their in situ generated palladium complexes showed high productivity in the industrial telomerization of 1,3-butadiene wi...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2016-01, Vol.52 (48), p.7568-7571
Main Authors: Pews-Davtyan, A, Jackstell, R, Spannenberg, A, Beller, M
Format: Article
Language:English
Subjects:
Ligands
Methyl alcohol
Optimization
Palladium
Phosphines
Productivity
Sulfones
Synthesis
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Summary:Novel zwitterionic phosphonium alkylsulfonate ligands are chemoselectively synthesized from N-heterocyclic phosphines and cyclic sulfones in one step in good to excellent yields. Their in situ generated palladium complexes showed high productivity in the industrial telomerization of 1,3-butadiene with methanol. Optimal results are obtained in the presence of cyclohexyl-substituted ligands under mild conditions and at metal loadings as low as 0.001 mol%. Novel zwitterionic phosphonium alkylsulfonate ligands are chemoselectively synthesized from N-heterocyclic phosphines and cyclic sulfones in one step in good to excellent yields.
ISSN:1359-7345
1364-548X
DOI:10.1039/c6cc02747d