Double Cyclization via Intramolecular Coupling between Cyclohexadiene−Fe(CO)<sub>3</sub> Complexes and Pendant Conjugated Dienes
作者:Anthony J. Pearson、Xiaolong Wang
DOI:10.1021/ja0210188
日期:2003.1.1
Intramolecular double cyclization between a cyclohexadiene-Fe(CO)3 complex and a pendantdiene yielded a tricyclic molecule containing a spirocenter, with defined relative stereochemistry of four contiguous carbon centers. The nature of the substituent on the pendantdiene moiety has a significant effect on the yield: an ester group leads to lower yield. The product has a conjugated cyclohexadiene
A synthetic pathway to diquinane and angular triquinane systems via an iron carbonyl promoted tandem [6+2] ene type reaction
作者:Anthony J. Pearson、Eun Hoo Kim、Huikai Sun
DOI:10.1016/j.tet.2010.05.018
日期:2010.7
A model study is described on a new approach to the synthesis of diquinane and angulartriquinane systems, via iron-promoted tandem [6+2] ene-type double cyclization followed by ozonolysis and intramolecular aldol reaction.