Brześkiewicz Jakub, Loska Rafał
Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
Org Lett. 2022 Jun 10;24(22):3960-3964. doi: 10.1021/acs.orglett.2c01317. Epub 2022 May 25.
The palladium-catalyzed C(sp)-H functionalization of bromoaryl aldonitrones leading to benzocyclobutenone-derived ketonitrones is described. This method allows for the preparation of a wide range of strained, four-membered ketonitrones with broad functional group tolerance. Downstream transformations of the formed products were readily demonstrated, illustrating the synthetic utility of the obtained benzocyclobutenone-derived nitrones for the construction of polycyclic nitrogen-containing scaffolds.
描述了钯催化的溴代芳基醛酮肟的C(sp)-H官能化反应,该反应可生成苯并环丁烯酮衍生的酮肟。该方法能够制备多种具有广泛官能团耐受性的含张力四元环的酮肟。所形成产物的下游转化反应很容易得到证明,这说明了所获得的苯并环丁烯酮衍生的肟在构建多环含氮骨架方面的合成效用。