Chemistry of Heterocyclic Compounds p. 883 - 888 (1993)
Update date:2022-08-02
Topics:
Belen'kii, L. I.
Gromova, G. P.
Krayushkin, M. M.
The disproportionation products of the C-protonation of 5-tert-butyl-2-methyl- and 2-ethylthiophene first give 4-tert-butyl-2-methyl- and 2-ethylthiophene. We studied the electrophilic trichloromethylation of a series of 2,4-dialkyl thiophenes and showed that the reaction goes smoothly only for the most sterically hindered 2,4-di-tert-butyl-thiophene. We studied the reaction of 2,4-di-tert-butyl-5-(trichloromethyl)thiophene with some O- and N-nucleophiles.
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