Studies related to the chemistry of melanins. Part VI. Syntheses of 3-carboxypyrrole-2-acetic acid, 3,5-dicarboxypyrrole-2-acetic acid, and related compounds
- 1 January 1970
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society C: Organic
- No. 2,p. 285-290
- https://doi.org/10.1039/j39700000285
Abstract
The acids named in the title were synthesised. In the case of pyrroles already containing an ester group, a carboxylic function can be introduced by use of phosgene, but better by use of oxalyl chloride; and acetic ester group can be introduced by use of diazoacetic ester. Some pyrroles containing carboxy- or ester groups are N-methylated by diazomethane.Keywords
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