| Authors | _ |
|---|
| Journal | Journal of the Iranian Chemical Society |
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| Page number | 661-669 |
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| Serial number | 9 |
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| Volume number | 4 |
|---|
| Paper Type | Full Paper |
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| Published At | 2012 |
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| Journal Grade | ISI |
|---|
| Journal Type | Typographic |
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| Journal Country | Iran, Islamic Republic Of |
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| Journal Index | ISI،JCR،isc،Scopus |
|---|
| Keywords | Ionic liquid b, Phosphonomalonates Chromenes Knoevenogel Michael Tandem |
|---|
Abstract
5-Hydroxypentylammonium acetate as a taskspecific ionic liquid promotes efficient tandem Knoevenagel-phospha-Michael reaction of phosphite esters with
aryl/heteroaryl/alkyl/salicylaldehydes and malonitrile/ethyl
cyanoacetate at room temperature in short reaction times.
This simple procedure allows a series of b-phosphonomalonates and 4-substituted 2-amino-4H-chromenes with
phosphonic acid dialkyl esters to be synthesized in good to
high yields in the presence of an ionic liquid for the first
time
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