Lewis acids modulation in phosphine-sulfonate palladium catalyzed ethylene polymerization was written by Wang, Yong;Pang, Wenmin;Zhang, Shaojie;Tan, Chen. And the article was included in Applied Organometallic Chemistry in 2022.Quality Control of 1-(2-Bromophenyl)piperidine This article mentions the following:
Lewis acid modulation in metal-catalyzed olefin polymerization have received increasing attention. In this work, a series of N-containing phosphine-sulfonate palladium complexes were synthesized, characterized and used as stimuli-responsive type catalysts. The introduction of metal Lewis acids results in significantly improved catalytic performances of N-containing phosphine-sulfonate Pd catalysts in ethylene polymerization, resulting in improved catalytic activities and high-mol.-weight polyethylenes (Mn up to 369.2 kg mol-1). It was indicated that the metal Lewis acids can form interactions with the N-containing moieties on the phosphine-sulfonate Pd catalysts. This provides a simple and versatile strategy to tune the properties of olefin polymerization catalysts. In the experiment, the researchers used many compounds, for example, 1-(2-Bromophenyl)piperidine (cas: 156808-79-6Quality Control of 1-(2-Bromophenyl)piperidine).
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Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem