1999
DOI: 10.1002/(sici)1099-1395(199909)12:9<688::aid-poc184>3.0.co;2-c
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Reactivity and reaction pathways of alkylalkoxybenzene radical cations. Part 2. Effects of 2-alkyl substituents on the relative importance of deprotonation over de-tert-butylation of 2-alkyl-5-tert-butyl-1,4-dimethoxybenzene radical cations

Abstract: The 2-alkyl-5-tert-butyl-1,4-dimethoxybenzene radical cations 1 Á a-e (2-alkyl = Me, Et, i-Pr, c-PrCH 2 and PhCH 2 ) generated in one-electron oxidation of their parent compounds 1a-e by pentafluorobenzoyl peroxide or cerium(IV) sulfate were characterized by EPR spectrometry. The product analysis shows that under certain conditions 1 Á a-e may collapse through two competitive pathways, i.e. deprotonation and de-tert-butylation. The deprotonation of 1 Á a-e is further assured by EPR observations of the correspo… Show more

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Cited by 9 publications
(1 citation statement)
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“…Such a multiplex approach finds references in the earlier literature. 1, 4 -Dimethoxy benzene has been reported to undergo electrochemical reactions in three different pathways viz., ring substitution, ipso substitution and quinone formation [7][8][9][10] . On platinum the attack of the neutral substrate molecule on the cation radical to yield the dimerized product has been favorably proposed [11][12] .…”
Section: The Following Mechanism Has Been Proposed For Acetoxylation Of Anisole Formation Of P-acetoxy Anisole and P-hydroxy Anisolementioning
confidence: 99%
“…Such a multiplex approach finds references in the earlier literature. 1, 4 -Dimethoxy benzene has been reported to undergo electrochemical reactions in three different pathways viz., ring substitution, ipso substitution and quinone formation [7][8][9][10] . On platinum the attack of the neutral substrate molecule on the cation radical to yield the dimerized product has been favorably proposed [11][12] .…”
Section: The Following Mechanism Has Been Proposed For Acetoxylation Of Anisole Formation Of P-acetoxy Anisole and P-hydroxy Anisolementioning
confidence: 99%