Lv X, Qi YN, Wang J, Zhao X, Jiang Z. Photoinduced Vinylogous Dearomatization.
Org Lett 2023;
25:3114-3119. [PMID:
37096799 DOI:
10.1021/acs.orglett.3c00966]
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Abstract
The first vinylogous dearomatization is reported. Under a photoinduced platform, various benzothiophenes functionalized by ketones at the 3-position could react with 3-methylenechroman-4-ones efficiently, leading to a variety of valuable products that contain the pharmaceutically significant chromones and 2,3-dihydrobenzo[b]thiophenes concurrently. The transformations were revealed to experience hydrogen-atom transfer, dearomatization, olefin migration, and radical cross coupling.
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