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336. Usnic acid. Part VII. Analogues of usnolic acid

✍ Scribed by Foster, Reginald T. ;Robertson, Alexander ;Healy, Thomas V.

Book ID
120274414
Publisher
The Royal Society of Chemistry
Year
1939
Weight
991 KB
Category
Article
ISSN
0368-1769

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## Abstract The reaction of (+)‐usnic acid (I) with arylhydrazines (II) leads to the fused pyrazole derivatives (III), whilst the reaction with nitrophenylhydrazines (V) gives rise to hydrazones (V).