Journal
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 17, Issue 19, Pages 4789-4800Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ob00526a
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Funding
- National Natural Science Foundation of China [21672046, 21372054]
- Fundamental Research Funds for the Central Universities [HIT.NSRIF.201701]
- Foundation from Huancui District of Weihai City
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An unexpected time-controlled highly selective C3-or C2-sulfinylation of pyrroles with sulfinamides is reported for the first time. The sulfinylation of indoles with sulfinamides using this protocol is oxidant-free and can be performed under obviously more feasible conditions (1.2 equiv. of indoles, 10 min) in comparison with the precedent procedure (3-20 equiv. of indoles, 16-18 h, ammonium persulfate as oxidant, hv). A variety of functional groups were tolerated, and various C2-thioindoles and C2/ 3-thiopyrroles were obtained in moderate to excellent yields.
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