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The preparation of dibenz[b,f][1,4]oxazepine-11-d1 and 10,11-di-hydrodibenz [b,f][1,4]oxazepin-11-one-7-d1

✍ Scribed by J. M. Harrison; K. Brewster; T. D. Inch

Publisher
John Wiley and Sons
Year
1978
Tongue
French
Weight
173 KB
Volume
14
Category
Article
ISSN
0022-2135

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The synthesis and chemistry of [11-14C]-
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✍ J. M. Harrison; T. D. Inch; D. G. Upshall πŸ“‚ Article πŸ“… 1978 πŸ› John Wiley and Sons 🌐 French βš– 211 KB

## Abstract The synthesis of [11‐^14^C]‐dibenz[b,f][1,4]oxazepine 1 is described. Chromium trioxide – pyridine oxidation of 1 gives [11‐^14^C]‐10, 11‐dihydrodibenz [b,f][1,4] oxazepin‐11‐one 3 which on hydrolysis gives 2‐amino‐2′‐[^14^C]‐carboxydiphenylether 4. Hydrogenation of 1 affords [11‐^14^C]

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## Abstract magnified image The effect of temperature and catalyst on the yield and rate of the etherification reaction between **1** and **2** was investigated and alternative methods for separation of **3** and **4** from the reaction mixture have been described.

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## Abstract magnified image Two distinct alternative methods using different starting materials for the preparation of dibenz[__b__,__f__][1, 4]oxazepine (**7**, CR) were reinvestigated. The possibility of __trans‐cis__ conversion of the Schiff base **5cis**, **5trans** (produced from **1** and **