𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Die Orientierung bei der Azokupplung von 2-Aminodiphenylen. 16. Mitteilung zur Kenntnis der Kupplungsreaktion

✍ Scribed by H. H. Bosshard; Hch. Zollinǵer


Publisher
John Wiley and Sons
Year
1961
Tongue
German
Weight
406 KB
Volume
44
Category
Article
ISSN
0018-019X

No coin nor oath required. For personal study only.

✦ Synopsis


In agreement with predictions by the molecular orbital theory (LONGUET‐HIGGINS) 2‐amino‐diphenylene reacts with benzenediazonium ions in 3‐position.


📜 SIMILAR VOLUMES


Allgemeine Basenkatalyse der Orientierun
✍ H. F. Hodson; O. A. Stamm; Hch. Zollinger 📂 Article 📅 1958 🏛 John Wiley and Sons 🌐 German ⚖ 468 KB

## Abstract Diazo coupling of 4‐phenylazo‐resorcinol takes place in 2‐ or 6‐position, depending on the acidity of the medium. It is shown that this orientation phenomenon is not caused by hydroxyl ion catalysis, but by general base catalysis. It is probable that the diazo orientation in resorcinol

Abhängigkeit des kinetischen Isotopeneff
✍ Hch. Zollinger 📂 Article 📅 1955 🏛 John Wiley and Sons 🌐 German ⚖ 325 KB

## Abstract 1. The kinetic hydrogen isotope effects of azo coupling reactions vary in dependence on three factors, namely the numerical values of k~2~, k~−1~ and [B] in the general kinetic equation for electrophilic aromatic substitutions: .

Kinetischer Isotopeneffekt und Isomerenv
✍ R. Ernst; O. A. Stamm; Hc H. Zollinger 📂 Article 📅 1958 🏛 John Wiley and Sons 🌐 German ⚖ 322 KB

## Abstract 1. Diazo couplings of 4‐chlorodiazobenzene with [2:4‐di‐D]‐1‐naphtol‐3‐sulphonic acid show an isotope effect (k~H~/K~D~ = 3·1) which is smaller than the isotope effect of the analogous reaction with 2‐naphtol‐6:8‐disulphonic acid. These differencies are explained as a function of k~−1~,

Zur Kenntnis der Kupplungsreaktion. 7. M
✍ Hch. Zollinger 📂 Article 📅 1953 🏛 John Wiley and Sons 🌐 German ⚖ 387 KB

## Abstract 1. The coupling rates of 11 substituted benzene diazonium ions with 2,6‐naphtylaminesulphonic acid and with 2,6‐naphtolsulphonic acid are measured under the same conditions (ionic strength =0·25; 20·0°C).

Weitere Untersuchungen über Salzeffekte
✍ Hch. Zollinger 📂 Article 📅 1956 🏛 John Wiley and Sons 🌐 German ⚖ 663 KB

## Abstract 1. The reaction rates of five azo couplings of substituted diazo‐benzenes with 2,6‐ and with 1,4‐naphtholsulphonie acid are measured at ionic strengths between 0,005 and 0,25.