Tetralintricarbonylchromium exchanges anti and syn benzylic protons in a solution of potassium tert-butoxide DMSO-d6. Under the same conditions the syn benzylic tertiary proton of trans-1-methyltetralintricarbonylchromium remains unchanged. The anti and syn benzylic protons of dihydroanthracenetricarbonylchromium and xanthenetricarbonylchromium undergo exchange and trans-9-methyl xanthenetricarbonylchromium undergoes exchange and epimerisation.
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页码:C24 / C26
页数:3
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[1]
BOUDEVILLE M, 1975, TETRAHEDRON LETT, V32, P2727