The biologically active Michael acceptor 2-methylene-3-quinuclidinone (MQ) has a unique chemical reactivity and forms several products upon dissolution in water. With the use of X-ray, NMR and LCMS data the structures of two previously incorrectly characterised compounds are rectified. A complex equilibrium in water, containing novel dimeric species of MQ, and its dependence on temperature, pH and concentration is presented.

中文翻译：

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2-亚甲基-3-奎宁环酮在水中的反应性

具有生物活性的迈克尔受体 2-亚甲基-3-奎宁环酮 ( MQ ) 具有独特的化学反应性，在水中溶解后形成多种产物。通过使用 X 射线、NMR 和 LCMS 数据，纠正了两种先前错误表征的化合物的结构。提出了水中复杂的平衡，其中包含MQ的新型二聚体及其对温度、pH 和浓度的依赖性。