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Neue Methoden zur Herstellung von Carbonsäure-arylestern. Über aktivierte Ester VIII

✍ Scribed by B. Iselin; W. Rittel; P. Sieber; R. Schwyzer


Publisher
John Wiley and Sons
Year
1957
Tongue
German
Weight
776 KB
Volume
40
Category
Article
ISSN
0018-019X

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✦ Synopsis


Abstract

Two new methods for preparing carboxylic acid aryl esters are presented. They consist in reacting the carboxylic acid with (a) aryl sulfites or (b) aryl phosphites in the presence of pyridine. A possible mechanism of the sulfite method is discussed.


📜 SIMILAR VOLUMES


Über aktivierte Ester V. Verwendung der
✍ B. Iselin; M. Feurer; R. Schwyzer 📂 Article 📅 1955 🏛 John Wiley and Sons 🌐 German ⚖ 630 KB

## Abstract A study on the synthesis of (N‐carbobenzoxy‐S‐benzyl‐L‐cysteinyl)‐L‐tyrosyl‐L‐isoleucine (XII) by the activated ester method has shown that the cyanomethyl esters prove useful for preparing relatively complicated peptides, especially if acetic acid is used as a catalyst. An important fe