Nobbs, James D. published the artcileFrom alternating to selective distributions in chromium-catalysed ethylene oligomerisation with asymmetric BIMA ligands, Recommanded Product: 2-(Chloromethyl)-1-methyl-1H-benzo[d]imidazole, the publication is Catalysis Science & Technology (2018), 8(5), 1314-1321, database is CAplus.
The oligomerization of ethylene with Cr-based catalysts containing asym. BIMA (bis(benzimidazole)methylamine) ligands produces linear alpha olefins (LAOs) that follow an alternating distribution. The catalytic activity and the degree of alternation is affected by the different ligands; in particular variations at the backbone of the ligand affect the nature of the distribution. For certain catalysts a deviation from regular alternating behavior is observed, whereby increased amounts of 1-hexene and 1-octene (up to 29 mol%) were obtained compared to the amount expected from the distribution anal. based on C10-C34 LAOs. This behavior towards more selective oligomerization to 1-hexene and 1-octene can be explained by varying probabilities of single and double ethylene insertion. The deviations will depend on the size of the metallacycle and are most pronounced early on during the metallacycle growth.
Catalysis Science & Technology published new progress about 4760-35-4. 4760-35-4 belongs to imidazoles-derivatives, auxiliary class Chloride,Benzimidazole, name is 2-(Chloromethyl)-1-methyl-1H-benzo[d]imidazole, and the molecular formula is C9H9ClN2, Recommanded Product: 2-(Chloromethyl)-1-methyl-1H-benzo[d]imidazole.
Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem