FeCl<sub>3</sub>-Catalyzed Intramolecular Michael Reaction of Styrenes for the Synthesis of Highly Substituted Indenes
作者:Dattatraya H. Dethe、Ganesh M. Murhade、Sourav Ghosh
DOI:10.1021/acs.joc.5b01071
日期:2015.8.21
An intramolecular FeCl3-catalyzed Michael addition reaction of styrene, a poor nucleophile, onto α,β-unsaturated ketones was developed for the synthesis of highly substituted indene derivatives. The method was further applied to the total synthesis of the sesquiterpene natural products (±)-jungianol and 1-epi-jungianol.
Abstract An investigation of nine representative species of the tribe Mutisieae yielded some new results of chemotaxonomic interest. Some new sesquiterpenes and coumarins have been characterised by spectroscopic methods. 5-Methylcoumarins appear to be characteristic of the tribe.
FeCl<sub>3</sub> Catalyzed Prins-Type Cyclization for the Synthesis of Highly Substituted Indenes: Application to the Total Synthesis of (±)-Jungianol and <i>epi</i>-Jungianol
作者:Dattatraya H. Dethe、Ganesh Murhade
DOI:10.1021/ol3032347
日期:2013.2.1
A novel approach was developed for the synthesis of highly substituted indene derivatives, using an FeCl3 catalyzed Prins-type cyclization reaction which was further applied in the total synthesis of jungianol and epi-jungianol.