1965
DOI: 10.1021/ja01084a037
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Fluorenyllithium-Lewis Base Complexes

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Cited by 80 publications
(18 citation statements)
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“…3 that there is no real discrepancy between the 'H NMR results and those obtained with other methods. As expected, the direct effect on the 5-membered ring protons (1,3) and (2) is much larger than that on the 6-membered ring protons (4,7) and (5,6). In other words, in the contact ion pair the counter ion is localised above the 5-membered ring.…”
Section: Resul'is and Discussionsupporting
confidence: 82%
“…3 that there is no real discrepancy between the 'H NMR results and those obtained with other methods. As expected, the direct effect on the 5-membered ring protons (1,3) and (2) is much larger than that on the 6-membered ring protons (4,7) and (5,6). In other words, in the contact ion pair the counter ion is localised above the 5-membered ring.…”
Section: Resul'is and Discussionsupporting
confidence: 82%
“…1). The spectra showed signals based on FlK9–11 in addition to those due to fluorene and the t ‐BuO group, and they suggested that there was equilibrium, as illustrated in Scheme . The sample temperature was elevated stepwise from 0 to 55 °C to obtain further information on the reaction.…”
Section: Resultsmentioning
confidence: 98%
“…In most cases 2,6-lutidine was included in the rate samples to trap HBr; in no instance was there evidence that it had any influence on the solvolysis rate constant. 6 Calculated using an £a value of 20.3 kcal/mol, as evaluated from solvolysis rate constants reported at other temperatures; 5* = -19eu. = Calculated using £a = 18.9 kcal/mol; AS* = -22 eu.…”
Section: Methodsmentioning
confidence: 99%