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The photochemistry of 3-ethoxy-3-methylpent-4-en-2-one, an .alpha.-alkoxy .beta.,.gamma.-unsaturated ketone

✍ Scribed by Hancock, Kenneth G.; Wylie, Philip L.

Book ID: 127337901
Publisher: American Chemical Society
Year: 1977
Tongue: English
Weight: 971 KB
Volume: 42
Category: Article
ISSN: 0022-3263
DOI: 10.1021/jo00431a006

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## Abstract On ^1^n,π\*‐excitation, the title compound **2** undergoes a photoinduced intramolecular [4 + 2]‐cycloaddition affording the tetracyclic enol ether **3** as the only product in 79% yield. The assigned structure of **3** was confirmed by its conversion to the __p__‐nitrobenzoate **6** wh