87281-57-0Relevant academic research and scientific papers
SYNTHESES OF DERIVATIVES OF PROTOPORPHYRIN-IX REGIOSELECTIVELY ENRICHED IN THE PROPIONIC SIDE CHAINS WITH CARBON-13
Smith, Kevin M.,Pandey, Ravindra K.,Tabba, Hani D.
, p. 3333 - 3357 (2007/10/02)
Using copper(II) promoted cyclizations of 1',8'-dimethyl-a,c-biladiene salts, derivatives of protoporphyrin-IX with regioselectively carbon-13 enriched carboxyl (2, 15) and propionate methylene (3, 20) carbons are synthesized.The source of carbon-13 in th
Neighboring Group Participation in the Pyrrole Series
Smith, Kevin M.,Martynenko, Zoya,Pandey, Ravindra K.,Tabba, Hani D.
, p. 4296 - 4302 (2007/10/02)
With use of proton and carbon-13 NMR spectroscopy of deuterium- and carbon-13-labeled substrates, the transformation of certain (2-hydroxyethyl)pyrroles (4, 18, 21) into the corresponding (2-haloethyl)pyrroles (using thionyl chloride/pyridine or triphenyl
