| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5272333 | Tetrahedron Letters | 2009 | 4 Pages |
Abstract
Base-catalyzed reaction of the nitroketene N,S-acetals and the ring substituted 2-hydroxybenzaldehydes afforded a combinatorial library of the 2-alkylamino-3-nitro-4-alkylsulfanyl 4H-chromenes in excellent yields. Nucleophilic displacement of the C4 alkylsulfanyl group with different thiols afforded 4H-chromenes with structural diversity.
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