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Generation and Reactions of a Benzodehydrotropylium Ion-Co2(CO)6 Complex.


ABSTRACT: A series of 7-methylenedehydrobenzo[7]annulen-5-ol hexacarbonyldicobalt complexes were generated by Hosomi-Sakurai reactions of allylsilanes containing o-alkynylarylaldehyde-Co2(CO)6 complexes. One of the cyclization products was converted into its corresponding dihydrobenzo[7]annulen-7-ol hexacarbonyldicobalt complex, an immediate precursor to a benzodehydrotropylium-Co2(CO)6. The cation was generated in situ and reacted with four nucleophiles, and its aromatic stabilization was determined by computational methods.

SUBMITTER: Mehdi MA 

PROVIDER: S-EPMC6854560 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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Generation and Reactions of a Benzodehydrotropylium Ion-Co<sub>2</sub>(CO)<sub>6</sub> Complex.

Mehdi Mariam A MA   Bushnell Eric A C EAC   Nikoo Sahar S   Gauld James W JW   Green James R JR  

ACS omega 20191028 20


A series of 7-methylenedehydrobenzo[7]annulen-5-ol hexacarbonyldicobalt complexes were generated by Hosomi-Sakurai reactions of allylsilanes containing <i>o</i>-alkynylarylaldehyde-Co<sub>2</sub>(CO)<sub>6</sub> 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<sub>2</sub>(CO)<sub>6</sub>. The cation was generated in situ and reacted with four nucleophiles,  ...[more]

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