Abstract
The synthesis of functionalized nine-membered ring lactones based on sequential esterification and ring-closing metathesis (RCM) reactions is reported. The effects of olefin substitution and allylic and homoallylic oxygenated substituents on the RCM reaction is analyzed. An unusual cyclization stereochemistry has been observed, leading to a stereoselective olefin formation in the synthesis of nonanolactones. The high selectivity can be rationalized by interaction/coordination of the homoallylic or allylic hydroxyl group with the ruthenium metal center in the ruthenacyclobutane intermediate.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.