2199-60-2Relevant articles and documents
Oxidation of pyrrole α-methyl to formyl with ceric ammonium nitrate
Thyrann, Thomas,Lightner, David A.
, p. 4345 - 4348 (1995)
Pyrrole α-aldehydes can be prepared in high yield by oxidation of pyrrole α-methyl groups with ceric ammonium nitrate when the pyrrole ring also has an α-carboxylic acid ester group.
Imploded bilirubins: Synthesis and properties of 10-nor-mesobilirubin- XIIIα and analogs
Nikitin, Edward B.,Dey, Sanjeev K.,Lightner, David A.
experimental part, p. 97 - 110 (2010/06/20)
Six 10-nor-bilirubin analogs have been synthesized and investigated. Lacking the C(10) CH2 group, these linear tetrapyrroles have a bipyrrole core rather than a dipyrrylmethane core and thus a different shape. Whereas the propionic acid groups
Pyrrole Studies. Part 26. A Novel Thermochromic and Photochromic Pyrrole System
Brittain, Judith M.,Jones, R. Alan,Jones, Richard O.,King, Trevor J.
, p. 2656 - 2661 (2007/10/02)
2-Dichloromethyl-3,5-bisethoxycarbonyl-4-methylpyrrole (3) yields a thermally labile 5,10-methylenedioxy-5H,10H-dipyrrolopyrazine (1) when heated with 6percent aqueous potassium hydroxide.Upon being heated at 160 deg C the colourless dipyrrolopyrazine is converted into a red bis-(1-azafulvene) system, which can be reconverted photochemically into the dipyrrolopyrazine via a cycloaddition reaction.