Abstract
Abstract There is a frequently used organocuprate species that was introduced by Lipshutz and possesses a molecular structure written as CuLi2R2(CN). This species was previously called “higher order cuprate”, but is now considered to exist as an equilibrating mixture of various isomers of R2CuLi·LiCN and R(CN)CuLi·LiR, among which R2Cu−·Li2CN+ is known to be dominant in solution. The present studies on the kinetic reactivity of these species in the addition reaction to acetylene suggest that the minor species R(CN)CuLi·LiR may be more reactive than the major species, thereby making it equally possible that addition reaction products may arise through both the major and the minor reactive species. The reason for the high reactivity of the minor species has been ascribed to the anisotropic and multi-coordination capability of the cyanide ligand to metals; such capability is not available for a halide or alkyl anion ligand.
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.
