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Oxidative Ring-Cleavage of Catechol in meta-Position by Superoxide
Zeitschrift für Naturforschung C - A Journal of Biosciences
Superoxide reacts with catechol in dimethylsulfoxide to form a yellow product. The structure of this product was established by different methods. UV-spectra of the yellow compound corresponded under all circumstances to those of enzymatically produced 2-hydroxymuconic acid semialdehyde. In the presence of ammonia the product was converted to picolinic acid. The UV - spectra, the retention times in GC and HPLC and the mass spectra after methylation corresponded to those of authentic picolinicdoi:10.1515/znc-1989-3-406 fatcat:4zkrc6mp5zd6nbe56t6qra3gjq