R. Kerber, H. Müller
Aug 11, 1987
Citations
0
Influential Citations
6
Citations
Journal
Journal of Organometallic Chemistry
Abstract
Abstract Carboxylation of cyclooctatrienyldilithium, Li 2 C 8 H 8 , gives predominantly tricyclo[5.1.0.0 2,4 ]oct-5-ene-3,8-dicarboxylic acid and trans,cis,cis,trans -deca-2,4,6,8,-tetraene-1,10-dioic acid; in addition, a small quantity of cycloocta-2,5,7-triene- trans -1,4-dicarboxylic acid has been identified as its dimethyl ester. The tricyclooctene diester is in equilibrium with a small amount of the isomeric cis -disubstituted cycloocta-2,5,7-triene in solution, and heating such a solution results in formation of a dimer. Reaction of the tricyclooctene diester with iron pentacarbonl produces exo (2–5)η-(3,8×-dicarbomethoxybicyclo[4.2.0]octa-2,4-diene]tricarbonyliron.