## Abstract A growing interest in the phytotoxic effects of trichloroacetic acid (TCA) has led us to develop a small‐scale (<1 mmol) one‐pot synthesis of [1,2‐^14^C]TCA with >70% yield and specific activity of 3.7 GBq/mmol. Copyright © 2001 John Wiley & Sons, Ltd.
Synthesis of |1,2-14C2|oxalacetic acid
✍ Scribed by L. R. Galagovsky; A. M. Porto; E. G. Gros
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- French
- Weight
- 105 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0022-2135
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Specifically labelled phenylacetic acid and mandelic acid derivatives, metabolites of L-Dopa, have been synthesized via the intermediary labelled benzyl alcohols, which were prepared by reduction of the methyl esters of the appropriate benzoic acids. The benzyl alcohols have been converted to the co
Synthesis of Nitrilotriacetic Acid-2-14C
## Abstract [2‐^14^C]1,3,7,9‐, 0(2),1,7,9‐ and 0(8),1,3,7‐Tetramethyluric acid were prepared by methylation of [2‐^14^C]uric acid with dimethyl sulfate at pH 9. The yield after repeated (3x) purification by TLC was 44.9%, 4.4% and 6.3% respectively.
## Abstract A widely used herbicide, 2,2‐dichloropropionic acid (dalapon), was synthesized with ^14^C‐labeling in the C‐1 or C‐2 positions. The carboxyl labeled material was prepared in 55% yield by carbonation of 1,1‐dichloro‐ethyllithium at approximately −104°. Starting with trichloroacetic acid,
## Abstract A semimicro synthesis was devised to prepare pure 1,2,6,7‐^14^C‐chelidonic acid of high specific activity from 1,2‐^14^C‐oxalic acid.