Preparation and cyclization of 2-benzoyl-3-ethoxycarbonylmethylcyclohex-2-enone and its derivatives have been investigated. Photochemical ring-closure followed by oxidative dehydrogenation was observed in suitably fixed triene derivatives. The results suggest that the cyclization of the photoenols (trienes) of 3-alkyl substituted 2-benzoylcyclohex-2-enones to anthracenone derivatives occurs photochemically.
研究了 2-苯甲酰基-3-乙氧羰基甲基环己-2-烯酮及其衍
生物的制备和环化。在适当固定的
三烯衍
生物中观察到了光
化学环闭和氧化脱氢反应。结果表明,3-烷基取代的 2-苯甲酰基环己-2-烯酮的光烯醇(
三烯)在光
化学作用下环化成
蒽酮衍
生物。