Aromatization and hydrogen-shift of 7-substituted 1,3,5-cycloheptatrienes in the presence of palladium(II) acetate

DOI: 10.1248/cpb.41.2187

Source and publish data:

Chemical and Pharmaceutical Bulletin p. 2187 - 2189 (1993)

Update date:2022-08-11

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Authors:

Saito Saito

Kozaki Kozaki

Takahashi

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Article abstract of DOI:10.1248/cpb.41.2187

Reaction of 7-ethoxycarbonyl-1,3,5-cycloheptatriene with palladium(II) acetate afforded 2- and 4-formylbenzoic acid ethyl ester and diethyl maleate via aromatization, and a mixture of position isomers of the cycloheptatriene through hydrogen-shift. The reaction with 7-cyano-1,3,5-cycloheptatriene was also investigated. The reactions are considered to proceed through palladium complexes of the cycloheptatrienes and their norcaradiene isomers.

Full text of DOI:10.1248/cpb.41.2187

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