𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A new approach to the synthesis of 14C labelled DL-malic acid

✍ Scribed by T. V. Ramamurthy; K. V. Viswanathan


Publisher
John Wiley and Sons
Year
1983
Tongue
French
Weight
163 KB
Volume
20
Category
Article
ISSN
0022-2135

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

The 2‐carbon units, glycine and glyoxylate are combined by a mild reaction via the copper chelate of glycine. The resulting β‐hydroxy aspartic acid is converted to DL‐malic acid by means of hydroxylamine 0‐sulfonic acid. The overall yields are in the range of 35–50% in submillimolar preparations.


📜 SIMILAR VOLUMES


A general approach to the synthesis of 1
✍ Taj Mohammad; Harry Morrison 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 French ⚖ 325 KB

## Abstract Condensation of aromatic carboxaldehydes with [2‐^14^C]‐__malonic acid under Knoevenagel conditions provides corresponding β‐aryl substituted__ [α‐^14^C]‐acrylic acids. The reaction is applicable to both aromatic and heteroaromatic aldehydes under controlled reaction conditions leading

A practical approach to the synthesis of
✍ I. Victor Ekhato; Che C. Huang 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 French ⚖ 394 KB

## Abstract A convenient method for the synthesis of phenylmethyl N‐methyl (carboxy‐^14^C) glycine hydrochloride (Z) is described. It involves the carboxylation of transmetalated organostannane compound 4 which itself is accessible by established procedure. Success in preparing the labelled amino a

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.

Synthesis of 14C-labelled antitumor agen
✍ Ying-Tsung Lin; Robert J. Dummel; Morris A. Leaffer; Masato Tanabe 📂 Article 📅 1976 🏛 John Wiley and Sons 🌐 French ⚖ 156 KB

## Abstract p‐Toluic acid‐ring‐^14^C was synthesized by the Friedel‐Crafts p‐carbamylation of toluene‐ring‐^14^C with N,N‐disubstituted carbamyl chloride and subsequent hydrolysis. The radiochemical yield was 61%. An attempt was made to apply this method for the synthesis of benzoic acid‐ring‐^14^C

A new synthesis for the preparation of 1
✍ D. Bánfi; S. Mlinkó; T. Palágyi 📂 Article 📅 1971 🏛 John Wiley and Sons 🌐 French ⚖ 135 KB

## Abstract A convenient gas catalytic process has been developed for the synthesis of radioactive alkali cyanides on micro or semimicro scale. The carbon content of barium carbonate used as starting material can be quantitatively transformed into potassium cyanide in a simple process.