Chelation-assisted Facile C–N Bond Oxidative Addition of Spironaphthoxazines by Ru(η4-cycloocta-1,5-diene)(η6-naphthalene)
CHEMISTRY LETTERS(2006)
Abstract
beta-Spironaphthoxazines 1 undergo oxidative addition of the C-N bond of the indoline moiety at ambient temperature upon treatment with the labile Ru(0) precursor, Ru(eta(4)-cycloocta-1,5-diene)(eta(6)-naphthalene) (2), to give the Ru(II) complex with the naphtholato-tethered 1,4-diazabuta-1,3-diene ligand 3. The reaction should be triggered by chelation of the isomeric azanaphthoquinone structure, which should bring the C-N bond to the position suitable for the oxidative addition.
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Key words
spironaphthoxazines,addition,chelation-assisted
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