In one easy step, doubly activated cyclopropanes 1 can be transformed into furoquinoline derivatives 2 through a tandem ring-opening/recyclization reaction mediated by SnCl4⋅5 H2O. A variety of substrates 1 derived from cheap starting materials were converted into the corresponding furoquinolines in good to excellent yields with high chemo- and regioselectivity. R=H, Me, OMe, Cl, or aromatic group is naphthyl.
If you can't find a tool you're looking for, please click the link at the top of the page to "Go to old article view". Alternatively, view our Knowledge Base articles for additional help. Your feedback is important to us, so please let us know if you have comments or ideas for improvement.