Selective dimerization of 1-butene in biphasic mode using buffered chloroaluminate ionic liquid solvents – design and application of a continuous loop reactor was written by Wasserscheid, P.;Eichmann, M.. And the article was included in Catalysis Today in 2001.Formula: C10H16ClN This article mentions the following:
The dimerization of 1-butene using (cod)Ni(hfacac) 1 as catalyst has been investigated in different chloroaluminate ionic liquids Systems prepared by buffering an acidic ionic liquid with weak organic bases proved to be very suitable solvents for the reaction. The reaction takes place in biphasic reaction mode with facile catalyst separation and catalyst recycling. The high intrinsic dimer linearity of catalyst 1 is maintained, but with significant enhancement of catalyst activity and of the selectivity to the dimer product over that observed in toluene solvent. For further investigation, a continuous reactor was designed. Our results in continuous mode show the general tech. applicability of the selective Ni-catalyzed dimerization in chloroaluminate ionic liquids using a loop reactor concept. In the experiment, the researchers used many compounds, for example, 1-Butyl-3-methylpyridinium Chloride (cas: 125652-55-3Formula: C10H16ClN).
1-Butyl-3-methylpyridinium Chloride (cas: 125652-55-3) belongs to pyridine derivatives. Pyridine has a dipole moment and a weaker resonant stabilization than benzene (resonance energy 117 kJ璺痬ol閳? in pyridine vs. 150 kJ璺痬ol閳? in benzene). Halopyridines are particularly attractive synthetic building blocks in a variety of cross-coupling methods, including the Suzuki-Miyaura cross-coupling reaction.Formula: C10H16ClN