Structure and properties of the thiobarbituric acid–malonaldehyde chromogen
- 1 January 1988
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 2
- No. 6,p. 1103-1105
- https://doi.org/10.1039/p29880001103
Abstract
An X-ray crystallographic study supported by 1H n.m.r. provides unequivocal evidence that the chromogen formed from the reaction of malonaldehyde with 4,6-dihydroxy-2-mercaptopyrimidine (thiobarbituric acid) is the highly stable delocalised anion (2) from 5,5′-(propane-1,3-diylidene)bis-(2-thioxopyrimidine-4,6-dione).Keywords
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