181515-34-4

Upstream product

• 829-85-6 diphenylphosphane 
• 6294-17-3 1-bromo-6-chlorohexane 
• 13435-20-6 tetraethylammoniumcyanide 
• 100649-32-9 (6-chlorohexyl)diphenylphosphane 

Downstream Products

• 181515-40-2 [PdCl₂(P(C₆H₅)2(CH₂)6CN)2] 

Relevant academic research and scientific papers

Phosphinoalkylnitriles: Synthesis and coordination behaviour at palladium centres

Phosphinoalkylnitriles R2P-(CH2)n-CN {R = isopropyl (ipr), phenyl (ph), cyclohexyl (chex), n = 3, 6, 10} have been prepared starting from the corresponding secondary phosphines in an easy three step synthesis. All new compounds were characterized by their 1H-, 13C and 31P NMR data. Some of these new P, N ligands were used to prepare complexes [{R2P-(CH2)n-CN}2PdCl2] which were also identified by their NMR data. In addition the crystal structures of three derivatives, [{ipr2P-(CH2)3-CN} 2PdCl2] 7a, [{ph2P-(CH2)3-CN}2PdCl2] 7b and [{ph2P-(CH2)6-CN}2PdCl2] 8b were determined by X-ray analysis. The coordination mode of the phosphinoalkylnitriles in these complexes was found to be P-bonded resulting in a trans configuration. Palladium catalysts with 5a as ligund show high activies in the co-oligomerization of butadiene and carbon dioxide. The δ-lactone 11a is formed under very mild conditions.