Oxidative Isomerization of Vinylidenecyclopropanes to Dimethylenecyclopropanes and Brønsted Acid-Catalyzed Further Transformation
作者:Bei-Li Lu、Min Shi
DOI:10.1002/ejoc.201001484
日期:2011.1
Oxidative isomerization of vinylidenecyclopropanes 1 produces dimethylenecyclopropane aldehydes 2 in moderate to good yields using tetrapropylammonium perruthenate (TPAP)/4-methylmorpholine N-oxide (NMO) as a catalytic system and the obtained dimethylenecyclopropanes 3 can be transformed to indene derivatives smoothly in the presence of Bronsted acid (HOTf). The scope and limitations as well as the
使用四丙基过钌酸铵 (TPAP)/4-甲基吗啉 N-氧化物 (NMO) 作为催化体系,亚乙烯基环丙烷 1 的氧化异构化产生中等至良好产率的二亚甲基环丙烷醛 2,并且所获得的二亚甲基环丙烷 3 可以在存在下顺利转化为茚衍生物布朗斯台德酸 (HOTf)。已经讨论了范围和限制以及可能的机制。