Regiodefined synthesis of brominated hydroxyanthraquinones related to proisocrinins
Dibromobenzoisofuranone 12, synthesized in six steps, was regiospecifically annulated with 5-substituted cyclohexenones 13/36 in the presence of LiOt-Bu to give brominated anthraquinones 14/38 in good yields. Darzens condensation of 30 was shown to give chain-elongated anthraquinone 32. Alkaline hyd...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Beilstein-Institut
2016-03-01
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| Series: | Beilstein Journal of Organic Chemistry |
| Subjects: | |
| Online Access: | https://doi.org/10.3762/bjoc.12.52 |