We have developed a convenient two-step procedure for the synthesis of 3-ethoxycarbonyl indoles from commercially available materials. The two-step procedure involves the synthesis of 2-aryl-3-hydroxypropenoic acid ester, followed by a catalytic reduction. This method is efficient, simple, and selective.
[Chatterjea, J. N.; Singh, K. R. R. P. Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1981 , vol. 20, # 12 p. 1053 - 1056]