Journal of the Chemical Society. Perkin transactions I p. 627 - 632 (1992)
Update date:2022-08-05
Topics:
Goosen, Andre
McCleland, Cedric W.
Merrifield, Alan J.
Formamidyl radicals (HCONR) do not intramolecularly abstract hydrogen or cyclise onto aromatic rings, but do add intermolecularly to alkenes.The photolytic addition of N-halogenoformamides to alkenes is inhibited by N-alkylation.However, N-alkyl-N-halogenoformamides add to alkenes in the presence of chromium(II) species.The addition of N-halogenoformamides to alkenes occurs regiospecifically with formamidyl bonding to the less substituted terminus of the alkene.The adducts obtained from N-alkylformamidyls exist as mixtures of rotameric isomers whose configurations have been assigned.The reactivity of the formamidyl radical has been discussed in terms of its conformation and electron state.
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(1992)
