Booker-Milburn KI, Baker JR, Bruce I. Rapid Access to Azepine-Fused Oxetanols from Alkoxy-Substituted Maleimides.
Org Lett 2004;
6:1481-4. [PMID:
15101772 DOI:
10.1021/ol049645k]
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Abstract
[reaction: see text] UV irradiation of alkoxy-substituted N-alkenylmaleimides induces a sequence involving a [5 + 2] cycloaddition followed by a Norrish-Yang cyclization. The resulting highly strained alkylidene oxetanol-fused azepines are formed in good yield and with high diastereoselectivities
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