Thermal degenerate rearramement of 1,2-dimethylenecyclobutane iron tricarbonyl

✍ Scribed by Joseph J. Gajewski; Chung Nan Shih

• Book ID: 104238416
• Publisher: Elsevier Science
• Year: 1973
• Tongue: French
• Weight: 173 KB
• Volume: 14
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(01)87083-0

✦ Synopsis

Vapor phase pyrolysis of bis-1,2-(dideuteriomethylene) cyclobutane iron tricarbonyl at 170" resulted in hydrogen scrambling. Degradation of the rearrangement product indicated that either one exomethylene group was exchanging with one ring methylene or hydrogen8 were being reversibly transferred from the ring carbons to the exocyclic ones. Mechanisms that would explain either possibility involve the intermediacy of a sigma bonded iron with a n-ally1 ligand.

Having examined the thermally induced degenerate rearrangements of bis-1,2-(dideuteriomethy.