Journal
CHEMICAL COMMUNICATIONS
Volume 56, Issue 29, Pages 4063-4066Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cc01172j
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Funding
- National Natural Science Foundation of China [21602001, 21922109, 21672196, 21831007]
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In this work, CuSO4 is utilized as a practical redox catalyst for tandem dual annulation in the synthesis of indole-fused tetracyclic heteroacenes, which are important skeletons in both medicinal chemistry and materials chemistry. The preparation of such skeletons in a convenient and efficient manner is in high demand. This method realizes the modular synthesis of benzofuro-, benzothieno-, and indoloindoles from abundant feedstocks such as 2-halobenzyl halides and nitrile derivatives in up to 99% yields, providing a rapid access to diverse indole-fused heteroacenes with biological or optoelectronic properties.
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