| 초록 |
While isopropylbenzene disproportionation is one of the potential technologies for diisopropylbenzene production, its reaction intermediates have not been experimentally observed yet. Here we present GC-MS evidence that not only mono-isopropylated diphenylisopropane derivatives but also one mono-isopropenylated diphenylisopropanes are serving as one of key reaction intermediates of this disproportionation reaction over large-pore zeolites (H-Y, H-beta, and H-mordenite). We also propose a new bimolecular diphenylpropane-mediated reaction pathway for the formation of diisopropylbenzenes and benzene over large-pore zeolites based on the GC-MS results obtained. |
