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Polysubstituted 3-arylaminoacrylate and tetrahydropyrimidin-2-one derivatives could be selectively produced from the one-pot domino reaction of arylamines, methyl propiolate, aromatic aldehydes, and urea in ethanol in the presence of $$\hbox {FeCl}_{3}$$ FeCl 3 as catalyst. Under similar reactions secondary amines such as morpholine and piperidine predominately afford tetrahydropyrimidin-2-one...
In the presence of FeCl 3 as catalyst the one-pot domino reactions of arylamines, methyl propiolate, aromatic aldehydes, and indole in ethanol at room temperature proceeded smoothly to give methyl 2-(1H-indol-3-yl)arylmethyl-3-arylamino)acrylates in good yields. 1 H NMR spectra and single crystal structures indicated that (Z)-acrylates were stereoselectively formed in the reactions.
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