Tetrahedron Letters p. 3573 - 3576 (1995)
Update date:2022-08-05
Topics:
Van Der Eycken, Erik
De Keukeleire, Denis
De Bruyn, Andre
Upon irradiation of 3-alkyl-4-phenoxybut-1-enes 1a-d at 254 nm in cyclohexane, ortho and meta photocycloadditions occur. The ortho photocycloadducts rearrange readily, while the meta photocycloaddition involves the 2′,6′-positions of the arene as directed
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