Irradiation of 2-alkoxy-3-(2-oxoalkyl)-1,4-naphthoquinone in benzene gave a novel cyclization product, (1,3)dioxepino-1,4-naphthoquinone via intramolecular H-abstraction reaction.
在苯中辐照 2-烷氧基-3-(2-氧代烷基)-
1,4-萘醌,通过分子内 H-萃取反应得到了一种新型环化产物--(1,3)二氧杂环庚-
1,4-萘醌。