Synthesis of Polysubstituted Polycyclic Aromatic Hydrocarbons by Gold-Catalyzed Cyclization–Oxidation of Alkylidenecyclopropane-Containing 1,5-Enynes
作者:Liu-Zhu Yu、Yin Wei、Min Shi
DOI:10.1021/acscatal.7b00784
日期:2017.7.7
ne-containing 1,5-enynes with 3,5-dibromo-pyridine N-oxide via a noncarbene model was developed, providing a range of synthetically valuable and useful arylacetaldehyde derivatives in moderate to good yields without oxidation of alkynes. Moreover, the corresponding aldehydes can be further transformed into polycyclic aromatic hydrocarbons in the presence of a catalytic amount of Lewis acid In(OTf)3
通过非卡宾模型,开发了一种金催化串联环化反应,通过非卡宾模型将含亚烷基环丙烷的1,5-烯炔与3,5-二溴吡啶N-氧化物氧化,从而提供了一系列合成有价值和有用的芳基乙醛衍生物。没有炔烃的氧化。此外,在催化量的路易斯酸In(OTf)3存在下,相应的醛可以进一步转化为多环芳烃。该反应代表了通过环丙烷部分的氧化来进行金催化的无金卤化物的Kornblum型氧化的一个例子。