Zinc–gold cooperative catalysis for the direct alkynylation of benzofurans
The direct alkynylation of benzofurans was achieved for the first time using the hypervalent iodine reagent 1-[(triisopropylsilyl)ethynyl]-1,2-benziodoxol-3(1H)-one (TIPS-EBX) based on the cooperative effect between a gold catalyst and a zinc Lewis acid. High selectivity was observed for C2-alkynyla...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Beilstein-Institut
2013-08-01
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| Series: | Beilstein Journal of Organic Chemistry |
| Subjects: | |
| Online Access: | https://doi.org/10.3762/bjoc.9.204 |