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A novel intramolecular cyclization reaction. Synthesis and properties of 5- and 8-membered germalactones

✍ Scribed by Yedi Guan; Jiwen Zou; Zhengguo Zhu

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
322 KB
Volume
489
Category
Article
ISSN
0022-328X

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A Novel Synthesis of Isoflavones via Cop
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Isoflavone derivatives were synthesized via intramolecular cyclization of 3-(2-bromophenyl)-3oxopropanal derivatives, using CuI as the catalyst, 2-picolinic acid (ΒΌ pyridine-2-carboxylic acid) as the ligand, K 2 CO 3 as the base, and DMF as the solvent, in up to 96% yield. The synthesis is functiona