Journal
RSC ADVANCES
Volume 4, Issue 89, Pages 48547-48553Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra08260e
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Funding
- National Natural Science Foundation of China [21302110, 21302109, 21375075]
- Taishan Scholar Foundation of Shandong Province
- Natural Science Foundation of Shandong Province [ZR2013BQ017, ZR2013BM007]
- Project of Shandong Province Higher Educational Science and Technology Program [J13LD14]
- Scientific Research Foundation of Qufu Normal University [BSQD 2012021]
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A novel n-Et4NBr-catalyzed method for the synthesis of benzothiophene derivatives via cascade reactions of substituted disulfides with alkynes through S-S bond cleavage and alkenyl radical cyclization reactions has been developed. The reaction has a high functional-group tolerance. The new method is environmental and practical, and the starting materials are readily available. These advantages, relative to previous methods, provide an opportunity for the construction of diverse and useful benzothiophene motifs.
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