## Abstract The synthesis of indole‐3‐acetyl‐2‐^14^C‐N‐aspartic acid from carrier‐free indole‐3‐acetic acid‐2‐^14^C (54.5 mCi/mmole) and bis‐t‐butyl‐l‐aspartic acid was accomplished by coupling with dicyclohexylcarbodiimide followed by removal of the ester blocking groups by treatment with 2 N NaOH
Synthesis of 14C-labeled halogen substituted indole-3-acetic acids
✍ Scribed by Bruce G. Baldi; Janet Pernise Slovin; Jerry D. Cohen
- Publisher
- John Wiley and Sons
- Year
- 1985
- Tongue
- French
- Weight
- 254 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0022-2135
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✦ Synopsis
Abstract
A general method for microscale synthesis of ^14^C‐labeled indole‐3‐acetic acids with halogen substitutions in the benzene ring is described. The method utilizes halogen substituted phenylhydrazines reacted with [^14^C]‐2‐oxoglutarate to generate the halogenated indole‐3‐acetic acid. 3‐Chlorophenyl‐hydrazine yielded a mixture of the 4 and 6 chloro compounds that was resolved by C~18~‐reverse phase high performance liquid chromatography.
📜 SIMILAR VOLUMES
## Abstract The synthesis of 3‐indolylacetic acid labelled with ^14^C in side chain carbon atoms has been effected using (1‐^14^C)glycolic acid, (1,2‐^14^C~2~)glycolic acid and (2‐^14^C)glycolic acid in an yield of 40‐60%. Some of the parameters that affect the synthesis have been studied and the r
## Abstract A microscale method for the synthesis of indole‐3‐acetaldehyde, indole‐3‐ethanol, indole‐3‐acetaldoxime and indole‐3‐acetonitrile from radioactively labelled tryptophan with high yield and no reduction in specific radioactivity is described.
## Abstract A method for incorporation of a ^14^C‐label in the ring geminal methyl moiety of Vitamin A is described. The procedure involves mono methylation of 2,6‐dimethylcyclohexanone with ^14^C‐methyl iodide as catalyzed by potassium hydride to afford 2‐^14^C, 2,6‐trimethylcyclohexanone. Subsequ
## Abstract 5‐Methoxy‐2‐methyl‐1‐(3,4‐methylenedioxybenzoyl)indole‐3‐acetic acid (ID‐955)(I), a new anti‐inflammatory agent, was labelled with carbon‐14 at C‐2 position of indole nucleus for the use of metabolic studies. The procedure used is shown in Fig. 1 and 2. Levulinic‐4‐^14^C acid was synthe
14C-labeled chlorogenic acid (specijic activity 30.6 nCilmg) was synthesized by reaction of diphenylmethyl-I-0-ethoxy-carbonyl- 4,5-0-isopropylidenequinate ( V ) with 0,O-dimethylcarbonyl caffeoyl chloride-u-14C (VIII) followed by selective hydrolysis of the protecting groups.