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Halonium ion-induced biosynthesis of chlorinated marine metabolites |
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| Authors: | John Geigert Saul L Neidleman Susanne K DeWitt Demetrios J Dalietos |
| Institution: | Cetus Corporation, 1400 Fifty Third Street, Emeryville, CA 94608, U.S.A. |
| Abstract: | Bromoperoxidases do not directly oxidize the chloride ion; nevertheless, in the presence of bromide ions, chloride ions and hydrogen peroxide, bromoperoxidases react with alkenes and alkynes to produce bromochloroderivatives. This same reaction is catalysed when seawater is the source of chloride and bromide ions. This suggests that bromonium ion-induced biosynthesis of chlorinated metabolites occurs in marine environments. The role of iodonium ions in the biosynthesis of chlorinated metabolites is also discussed. |
| Keywords: | Rhodophyta biological halogenation bromoperoxidase enzymatic bromochlorination marine chlorination role of bromonium ions and iodonium ions seawater |
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