Ring Transformations of Heterocyclic Compounds. XVI [1]. Spiro[cyclohexadiene-dihydroacridines]. A Novel Class of Spirodihydroacridines by Ring Transformation of Pyrylium Salts with 9-Methylacridine and its Quaternary Salts

DOI: 10.1002/jhet.5570350403

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Journal of Heterocyclic Chemistry p. 787 - 793 (1998)

Update date:2022-07-30

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Authors:

Zimmermann, Thomas

Abram, Ulrich

Schmidt, Klaus

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Article abstract of DOI:10.1002/jhet.5570350403

2,4,6-Triarylpyrylium salts 1 react with the in situ generated anhydrobase of 9,10-dimethylacridinium methosulfate (2a) in the presence of anhydrous sodium acetate in ethanol by a 2,5-[C₄+C₂] pyrylium ring transformation to give the

Full text of DOI:10.1002/jhet.5570350403

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