Abstract
| - A new three-component coupling reaction of methyl 3-trimethylsilylpropiolate, N-tosylimine, and tosylamide mediatedby DABCO was developed. This reaction was based on theconsecutive α- and β-activation method of propiolate involving intramolecular silyl migration previously developed byour group. On the basis of these results, a new cyclizationreaction was designed to find a chromene-forming reactionutilizing salicyl N-tosylimine as a bifunctional substrate.
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