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Preparation of pyrylium salts from 2-phenyl-5H-phenaleno [ 1,9-bc] pyran-5-one

✍ Scribed by J. A. Van Allan; G. A. Reynolds

Book ID: 112122689
Publisher: Journal of Heterocyclic Chemistry
Year: 1972
Tongue: English
Weight: 353 KB
Volume: 9
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570090330

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## Abstract Fused tricyclic 7‐phenyl‐5__H__‐thizolo[5,4‐__e__]pyrrolo[1,2‐__a__][1,4]diazepin‐10(9__H__)one (**10**) was prepared by thermolysis of 2‐phenyl‐4‐(1‐pyrrolylmethyl)thiazole‐5‐carbonyl azide (**9**) in acetic acid. In addition, starting from **10**, 7‐phenyl‐5__H__‐thiazolo [5,4‐__e__][

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