Electron-deficient carbocations. Direct observation of. alpha.-carbonylmethyl cations by laser flash photolysis

…, P Kwong, A Shelemay, E Lee-Ruff

Index: Johnston, Linda J.; Kwong, Patrick; Shelemay, Avshalom; Lee-Ruff, Edward Journal of the American Chemical Society, 1993 , vol. 115, # 5 p. 1664 - 1669

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Citation Number: 32

Abstract

Abstract: The 9-carbomethoxyfluoren-9-yl cation was generated under stable ion conditions and characterized by spectral data (visible/NMR spectroscopy) and product identification of the benzene and toluene trapping reactions. The laser flash excitation of methyl a- bromodiphenylacetate and methyl 9-bromo-9-fluorenylcarboxylate generated both the corresponding cations and radicals. Rate constants for nucleophilic quenching by ...