SEARCH Articles Figures Tables 3-Acylated indoles 3-Formyl-indole Acylation/formylation Formylations, Vilsmeier-Haack Haack Haack Formylation Indole 3-acylation Indole, 3-acyl Indoles Vilsmeier formylation Vilsmeier Vilsmeier formylation Vilsmeier-Haack Vilsmeier-Haack acylation Vilsmeier-Haack formylation