[3 + 2]Cycloadditions between methylenecyclopropanes 1 and substituted alkynes 2 are achieved on a triarylphosphite(“TOPP”)-containing nickel(0) catalyst. The three 4-methylene-1-cyclopentenes 3—5, R and/or R′ ≠ H, are formed in the reaction with 1.
No takes yet. Share an insight, caveat, or question.
Binger et al. (1985) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: