87462-14-4Relevant academic research and scientific papers
The Chemistry of Pyrrolic Compounds. LXVI The Synthesis of Two Petroporphyrins Substituted with a Fused Five-Membered Ring System: Examples of Possible Chlorophyll c Involvement in Petroporphyrin Formation
Clezy, Peter S.,Phuc, Le van,Prashar, Jognandan K.
, p. 1061 - 1075 (2007/10/02)
The synthesis of the petroporphyrins (3e) and (4e) has been completed, and their presence as the nickel complexes (3a) and (4a) in the Julia Creek shale oil deposits has been confirmed.While the derivation of (4e) from a chlorophyll c is generally accepte
Total Syntheses of Derivatives of Protoporphyrin IX Regioselectively Labeled with Carbon-13 in the Methyls
Smith, Kevin M.,Fujinari, Eugene M.,Pandey, Ravindra K.,Tabba, Hani D.
, p. 4667 - 4676 (2007/10/02)
Total syntheses, from monopyrroles via tripyrrenes and a,c-biladienes, of the four isomers 2-5 of protoporphyrin IX dimethyl ester in which the 1-, 3-, 5-, and 8-methyl groups are individually and regioselectively enriched with carbon-13 are described.The source of labeled carbon was 90percent carbon-13-enriched paraformaldehyde, and methyls were inserted at the monopyrrole stage by reductive C-alkylation.The carbon-13-labeled porphyrins, as the corresponding hemes, are of interest as probes in carbon-13 NMR spectroscopic studies of reconstituted heme proteins.
