ChemInform Abstract: PHOTOCHEMISTRY OF AROMATIC N‐OXIDES. PHOTOCHEMICAL BEHAVIOR OF MONOSUBSTITUTED PYRIDINE N‐OXIDES IN WATER SOLUTION

Bellamy, F.; Streith, Jacques; Fritz, H.

doi:10.1002/chin.197919159

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Incorporation Of Pyrrole-2-carboxylates1

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1984

2009

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“…15, 16 to yield 3-chloro-2-formyl pyrrole (8) in 35% yield. 8 was subsequently oxidised with Ag 2 O to give the final product.…”

Section: Incorporation Of Pyrrole-2-carboxylatesmentioning

confidence: 99%

Biosynthesis of pyrrolylpolyenes in Auxarthron umbrinum

Clark

Murphy

2009

Org. Biomol. Chem.

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The biosynthesis of the pyrrolylpolyene rumbrin (1) in the fungus Auxarthron umbrinum was elucidated using feeding studies with labelled precursors. Incorporation of stable isotopes from [(15)N]-proline, [(13)C]-methionine and [(13)C]-acetate confirmed that these were the precursors of the pyrrole moiety, methyl groups, and backbone of rumbrin, respectively. Label-dilution experiments with pyrrole-2-carboxylate confirmed it was a direct precursor in the biosynthesis of rumbrin. Both 3- and 4-chloropyrrolecarboxylates were also accepted as precursors in polyene production.

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“…15, 16 to yield 3-chloro-2-formyl pyrrole (8) in 35% yield. 8 was subsequently oxidised with Ag 2 O to give the final product.…”

Section: Incorporation Of Pyrrole-2-carboxylatesmentioning

confidence: 99%

Biosynthesis of pyrrolylpolyenes in Auxarthron umbrinum

Clark

Murphy

2009

Org. Biomol. Chem.

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“…b 4-(carboxymethyl)imidazole is obtained as the main product. that in both cases the nitrene 61 is the intermediate (see e.g., ref79, 81). In the case of pyridine IV-oxide it has…”

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confidence: 92%