Abstract
Data suggest that the purpurogallin (2,3,4,6-tetrahydroxy-5H-benzocyclohepten-5-one, hydroxybenzotropolone) and its analogues formed from the polyphenols can be precursors of the most complex natural compounds—humic acids and melanin-like polymers. Therefore, to confirm this possibility, the autooxidation of purpurogallin to humus-like substances has been performed. The oxidation process has been assayed by means of fluorescence and UV/VIS absorption spectroscopy. The obtained results indicate that purpurogallin undergoes a free-radical-mediated autooxidation via purpurogallinquinones to humus-like polymers. The scheme of the complex transformation of purpurogallin has been proposed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
