## Abstract A synthesis of the title compound from ^13^CO~2~ is described. The final step utilizes lithium hexamethyldisilazide as a base in the double dehydrobromination of 1,2โdibromoethaneโ1โ^13^C. Some alternative procedures are discussed.
An efficient synthesis of [2-13C]-monobromoacetic acid
โ Scribed by I. J. G. Climie; D. A. Evans
- Publisher
- John Wiley and Sons
- Year
- 1977
- Tongue
- French
- Weight
- 131 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0022-2135
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โฆ Synopsis
Abstract
[2โ^13^C]โMonobromoacetic acid was prepared in good yield by the bromination of acetic acid in the presence of phosphorous trichloride by appropriate modification of the method of Marvel.(^1^) A byโproduct of this method was found to be bromoacetyl bromide, which could be avoided by hydrolysis to the required product by a modified workโup procedure. Pure monobromoacetic acid was obtained by sublimation.
๐ SIMILAR VOLUMES
Various routes to fbnctionalized benzenes labelled in position 1 were compared. 1-[ 13Cl-Bromobenzene has been synthesized in 7 steps with an overall yield of 5.4% from [ I 3C]-BaC03, by optimizing the direct transformation of p-nitrophenol into bromobenzene.
## Abstract The synthesis of (2,3โ^13^C~2~) erucic acid, for use in metabolic studies, is reported. The synthesis employs a repeated 3 step reaction sequence using ^13^C labeled triethylphosphonoacetate to extend C~18:1~, oleyl alcohol, by 4 carbons. The starting alcohol is first oxidized with PCC
## Abstract The fumarase inhibitor, bromomescaconic acid, has been synthesized with ^13^C labeling in the bromomethyl group. Diโtโbutyl acetyleneโdicarboxylate was converted with Li (^13^CH~3~)~2~Cu to diโtโbutyl (methylโ^13^C)citraconate. Photochemical isomerization of this to diโtโbutyl (methylโ^