Kore Rajkumar, Kelley Steven P, Sawant Anand D, Mishra Manish Kumar, Rogers Robin D
College of Arts & Sciences, The University of Alabama, Tuscaloosa, AL 35487, USA.
Chem Commun (Camb). 2020 May 19;56(40):5362-5365. doi: 10.1039/d0cc01452d.
Lewis acid/base catalysts of AlCl3/N-methyl-2-pyrrolidone (O-NMP) and AlCl3/1-methylimidazole (N-Mim) were prepared and found to have higher catalytic activity in the Friedel-Crafts alkylation of benzene than the known super acidic ionic liquid chloroaluminate [HN222][Al2Cl7] ([HN222]+ = triethylammonium). Crystals structures were obtained for AlCl3(N-Mim), [AlCl2(O-NMP)2][AlCl4], and [Al(O-NMP)6][AlCl4]3·(C6H6)3 supporting the assignments of neutral and charged catalytic species.
制备了AlCl₃/N-甲基-2-吡咯烷酮（O-NMP）和AlCl₃/1-甲基咪唑（N-Mim）的路易斯酸/碱催化剂，发现它们在苯的傅克烷基化反应中比已知的超酸性离子液体氯铝酸盐[HN222][Al₂Cl₇]（[HN222]⁺ = 三乙铵）具有更高的催化活性。获得了AlCl₃（N-Mim）、[AlCl₂（O-NMP）₂][AlCl₄]和[Al（O-NMP）₆][AlCl₄]₃·（C₆H₆）₃的晶体结构，支持了中性和带电催化物种的归属。
