Journal of Organic Chemistry p. 473 - 478 (1984)
Update date:2022-07-29
Topics:
Tamura, Yasumitsu
Sasho, Manabu
Nakagawa, Kiyomi
Tsugoshi, Teruhisha
Kita, Yasuyuki
A new and exceptionally facile cycloaddition of the alkaline metal salt of homophthalic anhydrides (1a,b) is described.The anions of the anhydrides 1a,b undergo cycloadditions with various dienophiles (5-14) to give the corresponding peri-hydroxy polycyclic compounds (15-26) in good yields under extremely mild conditions, whereas thermal cycloaddition of 1a,b requires high temperatures.
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