THE CONDENSATION OF C14-NITROMETHANE WITH d-ARABINOSE: PREPARATION OF 1-C14-d-GLUCOSE AND 1-C14-d-MANNOSE
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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 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,...
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In a previous publication (l), data were reported concerning n-mannose and n-ribose isolated from Torula utilis yeast which had been grown on n-glucose-l-C’4 as the sole source of carbon. It was found that water extraction of the lyophilized yeast yielded a mannan that was completely devoid of radioactivity. Further, the D-ribose obtained from the purine ribosides of the nucleic acid fraction s...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1949
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)56722-3