Study of plant coumarins: X. Peurutenicin triflate in cross-coupling reactions |
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| Authors: | E A Makhneva A V Lipeeva E E Shults M M Shakirov G A Tolstikov |
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| Institution: | 1. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia
2. Novosibirsk State University, Novosibirsk, Russia
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| Abstract: | By Suzuki cross-coupling reaction of peurutenicin triflate with arylboric, furanylboric, pyridinylboric, and indolylboric acids the corresponding 7-aryl(hetaryl)coumarins were synthesized. The high activity of hetaryl-substituted boric acids in the Suzuki reaction was observed. Heck reaction of 7-O-trifluoromethylsulfonylpeur utenicin with terminal olefins (styrene, vinylpyridines, vinylpyrazine, vinyltriazole) was used to prepare (E)-7-aryl(hetaryl)vinyl]coumarins. The dependence of reaction products yield on the nature of the catalytic system was found. |
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