DOI: dx.doi.org/10.19261/cjm.2009.04(2).01 Graphical Abstract: It has been conducted increase the yield up to 63% of ethyl 5-hydroxy-1,2-dimethyl-1H-3-indolecarboxylate via interaction of p-benzoquinone with N-methyl-b-aminocrotone ether in mixture of glacial acetic acid/ethyl acetate.