The addition of N‐methylimidazole (NMI, 5 mol‐%) to the ruthenium‐mediated K‐region oxidation of pyrene has a dramatic effect on the workup procedure. The previously very messy and laborious workup that limited the scale of the reaction has thus become much easier to perform, which enables the comfortable synthesis of up to 15 g of pyrene‐4,5‐dione.

中文翻译：

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15 g规模的P-4,5-二酮的合成

在钌介导的K的K区氧化中添加N-甲基咪唑（NMI，5 mol％）对后处理程序具有显着影响。因此，以前非常麻烦和费力的后处理限制了反应的规模，因此变得更容易执行，这使得能够轻松合成多达15 g的4-4,5-二酮。