Bulletin of the Chemical Society of Japan p. 2695 - 2697 (1987)
Update date:2022-08-17
Topics:
Tsuda, Tohru
Sugiyama, Shigeru
Mori, Akira
Takeshita, Hitoshi
The Diels-Alder reactions of p-tropoquinone with furans were investigated under normal- and high-pressure conditions.With furan or 2-methylfuran, no cycloadduct was obtained at all, but with 2-methoxyfuran, a double Michael adduct was isolated from the reaction under the atmospheric pressure, and its structure was elucidated mainly by 1H NMR analysis.With 3,4-dimethoxyfuran, an exo-1:1-adduct and its further reacted 2:1-adduct were isolated.
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