A Catalytic Homo-Nazarov Cyclization Protocol for the Synthesis of Heteroaromatic Ring-Fused Cyclohexanones
作者:Lien H. Phun、Dadasaheb V. Patil、Marchello A. Cavitt、Stefan France
DOI:10.1021/ol200305n
日期:2011.4.15
A general protocol for the catalytichomo-Nazarovcyclization of cyclopropyl heteroaryl ketones has been developed, which employs indium triflate as the promoter. A range of heteroaromaticring-fused cyclohexanones was synthesized in 56−91% yield using this protocol. An example of a tandem cyclopropanation/homo-Nazarovcyclization is also reported in which the one-pot yield is greater than the overall