Selected cyclopropanes: A Pd-catalyzed cyclopropanation reaction with aliphatic ketones as nucleophiles using a modified pyridine-NHC ligand was achieved. The reaction afforded the corresponding cyclopropanes in moderate to good yields with high cyclopropane/allylation selectivity.

中文翻译：

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Pd催化的脂肪族酮与单取代的烯丙基试剂的环丙烷化反应

选择的环丙烷：使用修饰的吡啶-NHC配体，实现了以脂肪族酮为亲核体的Pd催化的环丙烷化反应。该反应以中等至良好的产率提供了具有高环丙烷/烯丙基化选择性的相应环丙烷。