Anthrone (1) can be alkylated selectively to give O-, C,O- or C,C-substituted compounds 2, 4, or 5, respectively. Similarly, 5,5-dimethyl-3-isoxazolidinone (6) and 4-methylquinolone (9) yield N- or O-derivatives 7 and 8 or 10 and 11, respectively. The product ratios can be influenced strongly sometimes by use of different phase transfer catalysts, but the sensitivity of each reaction towards the catalysts is unique.

中文翻译：

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通过相转移催化蒽酮、5,5-二甲基-3-异恶唑烷酮和4-甲基喹诺酮的区域选择性烷基化

蒽酮 (1) 可以选择性地烷基化，分别得到 O-、C、O- 或 C、C- 取代的化合物 2、4 或 5。类似地，5,5-二甲基-3-异恶唑烷酮（6）和4-甲基喹诺酮（9）分别产生N-或O-衍生物7和8或10和11。有时使用不同的相转移催化剂会强烈影响产物比率，但每个反应对催化剂的敏感性是独一无二的。