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- W795989620 abstract "The rates of bromination of the (E)-cinnamyl halides in acetic acid have been measured so that the electronic effects of a halomethylene group on a ?? system might be better understood. The relative rates of bromination decrease in the order PhCH=CHCH2F > PhCH=CHCH2Cl > PhCH=CHCH2Br. Rate constants could not be calculated from the kinetic data and reasons for this are discussed in great detail. The earlier literature proposal that this reactivity order was due to hyperconjugation of the C-H bonds of the ???CH2X group is shown to be incorrect, and new explanation is proposed in terms of modern molecular orbital theory. A detailed study of the products of bromination of the (E)-cinnamyl halides in acetic acid under the conditions of kinetic measurement is also reported. Product precursors, consistent with the products observed, have been tentatively identified. Several [??,??-2H2] - cinnamyl derivatives, PhCH=CHCD2X, have been prepared and the addition of several electrophiles to these alkenes has been studied." @default.
- W795989620 created "2016-06-24" @default.
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- W795989620 date "1982-01-01" @default.
- W795989620 modified "2023-09-24" @default.
- W795989620 title "Bromination of cinnamyl halides, and related studies" @default.
- W795989620 hasPublicationYear "1982" @default.
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