Autor: |
Olomola, TemitopeO., Klein, Rosalyn, Kaye, PerryT. |
Předmět: |
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Zdroj: |
Synthetic Communications; 2012, Vol. 42 Issue 2, p251-257, 7p, 2 Diagrams |
Abstrakt: |
Rapid, microwave-assisted Baylis-Hillman reactions of substituted salicylaldehydes, followed by one-pot hydrogen iodide-mediated cyclization and reduction of the corresponding adducts, has afforded 3-methylcoumarins in up to 94% yield in the final step. Subsequent microwave-assisted selenium dioxide oxidation of selected 3-methylcoumarins has provided convenient access to the corresponding coumarin-3-carbaldehydes and permitted a significant improvement over the yield obtained using conventional heating. [image omitted] [ABSTRACT FROM AUTHOR] |
Databáze: |
Complementary Index |
Externí odkaz: |
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