Abstract
ACCORDING to the theory of the mechanism of the catalysed bromination of ketones advanced by me1, presented in outline by Nathan Watson and Laurie2, and more recently extended by Watson Evans and Morgan3, the function of the catalytic molecule is the introduction of the translational energy of collision specifically into the carbonyl bond through the formation of transient addition complexes, which leave the bond in an electronically activated condition: ” the rupture of one link of the double bond, in chemical changes such as the formation of addition compounds, is an asymmetrical process, which can be formulated as depending on the transient formation of a semi-polar double bond in an activated phase of the molecule”4.
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NATHAN, W. Photo-Activation of the Carbpnyl Group in Prototropic Reactions. Nature 137, 460 (1936). https://doi.org/10.1038/137460b0
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DOI: https://doi.org/10.1038/137460b0
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