1944
DOI: 10.1002/cber.19440770215
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Chemie und Physiologie des Blutfarbstoff‐Abbaues

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Cited by 18 publications
(3 citation statements)
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“…The explanation of the GmeUn reaction, at least in principle, became clear only after the first change to blue-green had been proved to be a dehydrogenation of bilirubin to a bilatriene (verdin) (Lemberg, 1680) and after Siedel {2552, 2553,2555,2556) had found the explanation for the fact that oxidation beyond this stage leads to a series of compounds which resemble substances containing more hydrogen than bilatrienes. If a bilatriene is oxidized, some of the pyrrolelinking methene groups through which the conjugation of double bonds runs are oxidized to carbonyl groups or disappear by addition of nitrous acid or hydrogen peroxide (or in the presence of methyl alcohol by two methoxyl groups), as shown in Figure 10 conjugation of double bonds is thus interrupted, as it is by reduction which replaces^C -CH=C< by ^C -CH2 -C<^.…”
Section: Gmelin Reaction and Oxidation Products Of Bilatrienesmentioning
confidence: 99%
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“…The explanation of the GmeUn reaction, at least in principle, became clear only after the first change to blue-green had been proved to be a dehydrogenation of bilirubin to a bilatriene (verdin) (Lemberg, 1680) and after Siedel {2552, 2553,2555,2556) had found the explanation for the fact that oxidation beyond this stage leads to a series of compounds which resemble substances containing more hydrogen than bilatrienes. If a bilatriene is oxidized, some of the pyrrolelinking methene groups through which the conjugation of double bonds runs are oxidized to carbonyl groups or disappear by addition of nitrous acid or hydrogen peroxide (or in the presence of methyl alcohol by two methoxyl groups), as shown in Figure 10 conjugation of double bonds is thus interrupted, as it is by reduction which replaces^C -CH=C< by ^C -CH2 -C<^.…”
Section: Gmelin Reaction and Oxidation Products Of Bilatrienesmentioning
confidence: 99%
“…We know now, particularly through the work of Siedel (2550,2552,2553,2555,2556), that two main classes of biliviolinoid pigments exist.…”
Section: Surface Properties and Adsorptionmentioning
confidence: 99%
“…However, the studies of Lemberg, 20 of Libowitzky and Fischer, 125 of Siedel, 126 Watson, 127 and others have indicated the possible chemical pathway for bile pigment formation from heme. Denatured globin F e + + protoporphyrin + O2-> denatured globin F e + + + protoporphyrin + H2O2 or H 0 2 2.…”
Section: Mechanism Of Hemoglobin Decompositionmentioning
confidence: 99%