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[(DPEPhos)(bcp)Cu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
Published on: May 21, 2019
δ¹⁵N enrichment suggests possible source for halogenated 1'-methyl-1,2'-bipyrroles (MBPs)
Kristin C Pangallo1, Christopher M Reddy, Matthew Poyton
1Department of Chemistry, Colgate University, Hamilton, New York 13346, United States. kpangallo@colgate.edu
Abstract:
Polyhalogenated 1'-methyl-1,2'-bipyrroles are natural products that biomagnify into upper trophic levels of marine food webs. Here we demonstrate that they are unusually enriched in (15)N (δ(15)N from +19.3‰ to +28.1‰) relative to other biosynthetic organic compounds measured to date and the mammals from which the compounds were isolated. We argue the (15)N enrichment likely stems from enriched precursors and/or fractionation during biosynthesis and is not from MBP degradation. We also consider possible sources of MBPs in light of these results.
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