Unusual KF/Al2O3 Promoted Tandem Electrophilic-Nucleophilic Aromatic Substitution Leading to the Xanthone Formation

DOI: 10.1016/S0040-4039(00)60122-3

Source and publish data:

Tetrahedron Letters p. 4507 - 4508 (1992)

Update date:2022-08-04

Topics:

Authors:

Patek, Marcel

Lebl, Michal

Budesinsky, Milos

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Article abstract of DOI:10.1016/S0040-4039(00)60122-3

Formation of xanthone (III) by the KF/Al2O3 mediated O-alkylation of 2-hydroxybenzophenone (I) is described and mechanistic rationalization is proposed for this unexpected side-reaction. Key words: O-alkylation, fluoride anion, xanthone

Full text of DOI:10.1016/S0040-4039(00)60122-3

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Product name:4-[6-Methylsulfanyl-2-(4-methylsulfanyl-benzoyl)-9-oxo-9H-xanthen-3-yloxy]-butyric acid methyl ester

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