Abstract
In the presence of samarium diiodide and a proton donor (tert-butanol or phenol), δ-oxo-y.y-disubstituted-alkylidenemalonates readily cyclise according to the 3-exo-trig mode to give. depending on the exact nature of the substrate, trans and cis cyclopropanols or lactones derived from the cis isomers. Total stereoselectivity towards the formation of trans cyclopropanols is observed with di-tert-butyl alkylidenemalonates when PhOH is used as the protonating agent.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
