A partial synthesis of isohibaene (VI) starting with nezukol (V) has been accomplished. It involves, as the key step, the intramolecular insertion reaction of a ketocarbene generated by cuprous oxide-catalyzed decomposition of diazoketone (XI) under irradiation. It has been found that isohibaene undergoes rearrangement into a mixture of phyllocladene (XIV) and isophyllocladene (XV) by iodine catalytically.
我们完成了从nezukol (V)开始的异苯并
芘 (VI) 的部分合成。其中的关键步骤是在
氧化亚铜催化下,重
氮酮(XI)在辐照下分解产生的酮羰基的分子内插入反应。研究发现,在
碘的催化下,异联
苯乙烯会发生重排反应,变成phyllocladene (XIV) 和 isophyllocladene (XV) 的混合物。