Copper-catalyzed tandem annulation of 2-alkynoyl-2′-iodo-1,1′-biphenyls with isocyanoacetates: a rapid access to pyrrole-fused tetracyclic skeletons
Autor: | Wei Zhou, Kaifu Wu, Yifan Ouyang, Qian Cai |
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Rok vydání: | 2021 |
Předmět: | |
Zdroj: | Organic Chemistry Frontiers. 8:2456-2460 |
ISSN: | 2052-4129 |
Popis: | An efficient and convenient synthesis of pyrrole-fused tetracyclic skeletons is presented. In this protocol using CuI as a catalyst, 1,1′-biphenyl substrates with 2-alkynoyl and 2′-iodo groups react with isocyanoacetates to provide 7-membered cyclic ketones fused with pyrrole and biphenyl rings through tandem [3 + 2] cycloaddition and C–C coupling processes. |
Databáze: | OpenAIRE |
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