Improved synthesis of sodium D-glucuronate-6-C14 and of D-glucose-6-C14
نویسندگان
چکیده
منابع مشابه
Synthesis of D-Glucose-1-C14 and D-Mannose-1-C14
Heretofore, radiochemical yields of sugars position-labeled with carbon-14 have been only 5 to 10 percent. This paper reports an improved cyanohydrin synthesis, and the preparation of D-glucose-1-C and D-mannose-1-C from D-arabinose in yields of about 50 percent. Low yields in prior syntheses appear to have been due to several inefficient steps, and to the fact that extension of the carbon chai...
متن کاملUtilization of 1-C14-D-glucose by Torula utilis yeast.
A study of the utilization of l-C14-D-glucose by Torula utilis yeast was undertaken in an effort to clarify certain biosynthetic mechanisms operating in yeast metabolism. A recent publication by Gilvarg (1) describes the results obtained in a similar study with Xaccharomyces cerevisiae yeast. Since our methods and certain of our results differ from those of Gilvarg, a partial report of our obse...
متن کاملThe incorporation of formate-C14, glycine-2-C14, adenine-4, 6-C14, and phosphate-P32 into nucleic acids.
nine labeled either with C'4 or N'5. Considerable controversy has developed as to which one of these tracer compounds gives an accurate measurement of the “relativeturnover-rate― of the nucleic acids. In order to determine the “absolute turnover rate― of the nucleic acids, it is necessary to know the specific activity of the immediate precursor of the nucleic acids. Since even the ident...
متن کاملAscorbic acid synthesis from D-glucose-2-C14 in the liver of the intact rat.
Evidence that glucose1 is the ultimate g-carbon precursor of ascorbic acid in the rat was first obtained by Jackel, Mosbach, Burns, and King (1). They administered uniformly labeled glucose-C** to Chloretone-treated rats and recovered uniformly labeled ascorbic acid from the urine. Subsequently, Horowitz, Doerschuk, and King (2) and Burns and Mosbach (3) discovered that when glucose-l-C14 was a...
متن کاملMetabolism of D-ribose1-C14 and C14-labeled d-gluconate in an enzyme system of the genus Propionibacterium.
Stjernholm, Rune L. (Western Reserve University, Cleveland, Ohio) and Frank Flanders. Metabolism of d-ribose-1-C(14) and C(14)-labeled d-gluconate in an enzyme system of the genus Propionibacterium. J. Bacteriol. 84:563-568. 1962.-Ribose-1-C(14) and potassium gluconate labeled in different positions were incubated with cell-free extracts of Propionibacterium shermanii. The resulting propionate,...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Research of the National Bureau of Standards
سال: 1956
ISSN: 0091-0635
DOI: 10.6028/jres.056.027