Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 12, Issue 23, Pages 5916-5923Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.200600174
Keywords
alkynes; cyclization; density functional calculations; gold; rearrangement
Categories
Ask authors/readers for more resources
Three pathways actually compete in metal-catalyzed cyclizations of enynes in which the metal selectively activates the alkyne: an endocyclic process and two exo-cyclizations, one proceeding by anti attack of the alkene and a second one resulting in a syn addition. Although cyclobutenes may be formed in transition-metal-catalyzed cyclization of some enynes, particularly, 1,7-enynes. these compounds are not necessarily the intermediates in the skeletal rearrangement. Cyclobutenes are formed by ring expansion of syn-cyclopropyl metal-carbenes formed in the syn pathway.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available