A series of 7-methylenedehydrobenzo[7]annulen-5-ol hexacarbonyldicobalt complexes were generated by Hosomi-Sakurai reactions of allylsilanes containing -alkynylarylaldehyde-Co(CO) complexes. One of the cyclization products was converted into its corresponding dihydrobenzo[7]annulen-7-ol hexacarbonyldicobalt complex, an immediate precursor to a benzodehydrotropylium-Co(CO). The cation was generated in situ and reacted with four nucleophiles, and its aromatic stabilization was determined by computational methods.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6854560 | PMC |
| http://dx.doi.org/10.1021/acsomega.9b02390 | DOI Listing |
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