Indium triflate: a new catalyst for (4 + 2)-cycloaddition of chromone Schiff ’s bases
- 10 July 2000
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- No. 16,p. 2827-2829
- https://doi.org/10.1039/b000923g
Abstract
3,4-Dihydro-2H-pyran reacts with a variety of chromone Schiff’s bases 3 in the presence of indium and scandium triflates at ambient temperature and pressure to give the endo cycloadducts 4 regiospecifically in high yields.Keywords
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