Chemical and Pharmaceutical Bulletin p. 2187 - 2189 (1993)
Update date:2022-08-11
Topics:
Saito
Kozaki
Takahashi
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.
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