The palladium catalyzed carboxytelomerization reaction of alcohols with butadiene allows for efficient and atom‐economical access to unsaturated alkyl nona‐3,8‐dienoate esters. The study focused on the nature of the catalyst (phosphine and acid) with ethanol. Commercially available triarylphosphines and carboxylic acids associated with a simple palladium precursor appear to be the best combination for in situ generation of the catalyst. The reaction conditions were further optimized and the carboxytelomerization reaction was efficiently applied to the full transformation of several industrially relevant agro‐based monoalcohols and polyols.
Ethylene polymerisation on dialkylmagnesium using neodymocene based catalysts via Catalyzed Chain Growth (CCG) has been studied with the aim to improve the performance of the overall catalytic/transfer process. A one...
The palladium catalyzed telomerization of butadiene with polyols has been efficiently performed under aqueous and biphasic medium leading to the corresponding octadienylethers. Depending on the choice of the organic co-solvent and nature of the catalyst employed to promote the reaction, mono-to fully substituted ethers could be obtained with high selectivities and yields. Particularly, pentaerythritol was telomer-ized for the first time allowing the selective synthesis of the corresponding monotelomers by using methylethylketone as organic co-solvent and the water soluble ligand TPPTS associated to a simple palladium precursor. Polyethers of sorbitol could be efficiently obtained by using a mixture of TPPTS and PPh 3 ligands.
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