Conclusions
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1.
In ethyl-substituted o-semiquinoid trienes, in contrast to the corresponding p isomers, in competitive electrophilic aromatization, display a greater affinity toward soft Lewis acids such as HgCl2 in comparison with hard protic acids.
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2.
The possibility was found for the aromatization of exo-methylenecyclohexadienes by the action of AuBr3 with the formation of the corresponding benzyl bromides.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1192–1195, May, 1986.
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Rozenberg, V.I., Nikanorov, V.A., Gorbacheva, R.I. et al. Competitive electrophilic aromatization of exo-methylene-1,3-cyclohexadienes and exo-methylene-1,4-cyclohexadienes. Russ Chem Bull 35, 1084–1086 (1986). https://doi.org/10.1007/BF00955388
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DOI: https://doi.org/10.1007/BF00955388