Synthesis of Tri-, Tetra-, and Pentacarbonyl Derivatives via Ozonolysis of 1,4-Dienes and Cyclization to Polyaromatic Systems
作者:Laura Kersten、Klaus Harms、Gerhard Hilt
DOI:10.1021/jo502308d
日期:2014.12.5
was the synthesis of polyaromatic systems by cyclization of β-polycarbonyls. Useful synthons for β-polycarbonyl derivatives are branched 1,4-dienes generated by cobalt-catalyzed hydrovinylation of terminal alkenes and 2,3-dimethyl-1,3-butadiene. Thus, a series of tri-, tetra-, and pentacarbonyl synthons was successfully synthesized. Subsequently, these synthons were examined in an ozonolysis/cyclization
这项工作的目的是通过β-聚羰基的环化合成多芳族体系。对于β-多羰基衍生物有用的合成子是通过末端烯烃和2,3-二甲基-1,3-丁二烯的钴催化的氢乙烯基化而生成的支链1,4-二烯。因此,成功地合成了一系列的三,四和五羰基合成子。随后,按照臭氧分解/环化反应顺序检查这些合成子。获得了高收率的多芳族衍生物,并将该方法用于合成天然产物宽氮醌A。