New spirolactams of formula (I) having a benzodienone moiety and a azetidinone moiety which are highly stable due to pi interactions. They are useful as UV absorbers and as synthetic intermediates.
具有苯二烯酮基团和氮杂环
丙酮基团的新螺内酰胺(I)具有高稳定性,因为存在π相互作用。它们可用作紫外吸收剂和合成中间体。