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• W1976541798 abstract "The substituted fluorenyl cation, 9-(diphenylmethyl)fluoren-9-yl cation (4), is formed under stable ion conditions (low temperature/strong acid) from its corresponding alcohol 3. This ion is transformed to a substituted diphenyl methyl cation 8 at ambient temperature via an apparent 1,2-hydrogen shift. Irradiation of 9-(diphenylmethyl)fluoren-9-ol in methanol gives products derived from the corresponding cation along with radical-derived products from C-C and C-O homolysis processes. The laser flash photolysis of this alcohol gave a transient corresponding to cation 4. All of the photoproducts are derived from cation 4 or radical pathways. High level MO calculations point to a high barrier (23.8 kcal x mol(-1)) for the 1,2-hydride shift. This barrier is the consequence of the minimum energy conformation of this fluorenyl cation which is less than ideal for the periplanar geometry necessary for this process." @default.
• W1976541798 created "2016-06-24" @default.
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• W1976541798 date "2001-01-27" @default.
• W1976541798 modified "2023-09-30" @default.
• W1976541798 title "Studies of 9-Fluorenyl Carbocations. Intramolecular Hydride Migration in a Substituted 9-Fluorenyl Carbocation" @default.
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• W1976541798 doi "https://doi.org/10.1021/jo0009200" @default.
• W1976541798 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/11312936" @default.
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