𝔖 Bobbio Scriptorium
✦   LIBER   ✦

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

No coin nor oath required. For personal study only.

✦ 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


Synthesis of 14C-labeled indole-3-acetyl
✍ Jerry D. Cohen 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 French ⚖ 161 KB

## 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 3-indolyl(1-14C)acetic, 3-i
✍ K. V. Viswanathan; T. V. Ramaamurthy 📂 Article 📅 1980 🏛 John Wiley and Sons 🌐 French ⚖ 208 KB 👁 1 views

## 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

Preparation of radioactively labelled in
✍ Frieder Hofmann; Thomas Rausch; Prof. Dr. Willy Hilgenberg 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 French ⚖ 162 KB

## 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.

Synthesis of ring 14C-methyl labeled ret
✍ William T. Colwell; Caroline Soohoo; Joseph I. Degraw 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 French ⚖ 267 KB

## 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

Labelling of an anti-inflammatory agent
✍ Iwao Nakatsuka; Masaaki Hazue; Yoshiaki Makari; Kazuo Kawahara; Michio Endo; Aki 📂 Article 📅 1976 🏛 John Wiley and Sons 🌐 French ⚖ 266 KB

## 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

The synthesis of 14C-labeled chlorogenic
✍ J. F. Debardeleben; L. C. Teng 📂 Article 📅 1970 🏛 John Wiley and Sons 🌐 French ⚖ 276 KB

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.