Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Oxobutanedioic acid

Exercise 19-14 One part of the citric acid cycle (Sections 18-8F and 20-1 OB) in metabolism converts 2-oxobutanedioic acid byway of citric acid to 2-oxopentanedioic acid ... [Pg.890]

If the 4-carboxyl carbon of the 2-oxobutanedioic acid is enriched in 13C, only the 1-carboxyl carbon of the 2-oxopentanedioic acid contains excess 13C. Explain in general terms how the intermediate citric acid must be labeled to have the 13C turn up in the 1-carboxyl of the 2-oxopentanedioic acid. [Pg.890]

The entry point is the reaction between acetyl CoA and a four-carbon unit, 2-oxobutanedioic acid. An aldol-type addition of the CH3CO group to this C4... [Pg.951]

Here the situation becomes one stage more complex. The acid can form both the anion and dianion and all three species can decarboxylate, e.g., for 2-oxobutanedioic acid (oxaloacetic acid)... [Pg.341]

Question. The decarboxylation of 2-oxobutanedioic acid, p. 341 (oxaloacetic acid), H2A, at constant pH has three contributing steps ... [Pg.342]

Oxalacetic Acid. Oxobutanedioic acid oxosuccinic acid ketosuccinic acid. C4H405 mol wt 132.07. C 36.37%. H 3.05%, O 60.57%. HOOCCOCHjCOOH. Prepd by hydrolyzing sodium diethyloxalacetate with coned HC1 Hei -delberger, Hurlbart. J. Ant- Chem. Soc. 72, 4704 (1950). Prepn ol cis-enol form Heidelberger, Biochem. Preptt. 3, 59 (1953). [Pg.1093]

Oxobutanedioic acid = oxosuccinic acid = ketosuccinic acid. [Pg.455]

Effective (9-demethylation has been observed to occur in the periodate oxidation of 3-deoxy-4-(9-methylaldosulosonic adds, which produce 2-oxobutanedioic acid and give a positive test with thiobarbituric acid. ... [Pg.191]

DL-2-Hydroxy-2-Tnethyl 4-oxobutanedioic acid (parapyruvic acid)... [Pg.318]

CeHgOs Metal 2-Oxobutanedioic acid 4-ethvlester (4-ethvloxaloacetate) H2L... [Pg.321]

See other pages where Oxobutanedioic acid is mentioned: [Pg.722]    [Pg.645]    [Pg.840]    [Pg.889]    [Pg.125]    [Pg.320]    [Pg.543]    [Pg.131]    [Pg.132]    [Pg.17]    [Pg.568]    [Pg.322]    [Pg.344]   
See also in sourсe #XX -- [ Pg.320 ]

See also in sourсe #XX -- [ Pg.131 ]



SEARCH



© 2024 chempedia.info