Abstract
AbstractA new family of easily accessible and stable imidazolin‐2‐ylidenes has been synthesized, where the side chains are comprised of substituted naphthyl units. This generates C2‐symmetric (anti) and Cs‐symmetric (syn) atropisomers. The interconversion between the isomers is studied in detail both for the N‐heterocyclic carbene salts and the free carbenes through variable‐temperature 1H NMR spectroscopic studies; activation free energies are calculated and can be linked to the substitution pattern of the naphthyl moieties. Palladium complexes comprising the new N‐heterocyclic carbenes are synthesized and preliminary data show that these compounds behave well as precatalysts in the Buchwald–Hartwig amination reaction of aryl bromides and aryl chlorides. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
Sign-in/Register to access full text options 
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 callDisclaimer: 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.
