𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The Ring Expansion – Ring Contraction Dichotomy in Aromatic Nitrene and Carbene Reactions I. Arylcarbenes. Preliminary communication

✍ Scribed by C. Wentrup; C. Mayor; R. Gleiter

Book ID
102250322
Publisher
John Wiley and Sons
Year
1972
Tongue
German
Weight
306 KB
Volume
55
Category
Article
ISSN
0018-019X

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Rearrangement experiments and energy calculations by the CNDO/2 and extende Hückel methods indicate that ring expansion and ring contraction in aromatic carbenes and nitrnes can be one‐step processes which are governed by the stabilities of the primary products and the energies of the reactants.

📜 SIMILAR VOLUMES

The Ring Expansion - Ring Contraction Di
The Ring Expansion - Ring Contraction Dichotomy in Aromatic Nitrene and Carbene Reactions II. Hetarylnitrenes. Preliminary communication
✍ C. Wentrup; C. Thétaz; R. Gleiter 📂 Article 📅 1972 🏛 John Wiley and Sons 🌐 German ⚖ 260 KB

## Abstract ^15^N‐labelling experiments and energy calculations on nitreno‐azines and ‐diazies are in agreement and lead to the theory that both ring contraction and ring expansion in hetarylnitrenes __can__ be one‐step processes which are governed mainly by the energy differences between the react

On the Ring-Expansion in Aromatic Nitren
On the Ring-Expansion in Aromatic Nitrenes and Carbenes
✍ Rolf Gleiter; Wolfgang Rettig; Curt Wentrup 📂 Article 📅 1974 🏛 John Wiley and Sons 🌐 German ⚖ 698 KB

## Abstract The ring expansion, phenylnitrene (**1**) → azepinylidene (**3**) has been investigated using the CNDO/2 and Extended __Hückel__ method. Both methods predict that the nitrene‐nitrogen of **1** is moving out of the molecular plane on the path of minimum energy. Whether an intermediate **