Chemistry Letters p. 1453 - 1456 (1983)
Update date:2022-07-30
Topics:
Ibata, Toshikazu
Toyoda, Jiro
Copper(II) acetylacetonate-catalyzed decomposition of o-methoxycarbonyl-α-diazoacetophenone in benzene in the presence of carbonyl compounds gave 1,3-dipolar cycloadducts of 1-methoxy-2-benzopyrylium-4-olate with carbonyl compounds in high yields.
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