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Regioselective ethoxy-carbonylation of indoles and indazoles using DEAD and tetraethylammonium cyanide
2013
RSC Advances
General procedure: Under nitrogen atmosphere, a reaction flask charged with indole or indazole (0.2 mmol), a tetraethyl ammonium cyanide (0.4 mmol), a and aectonitrile (2 mL) was cooled to 0 °C and DEAD (0.4mmol) a was added slowly (dropwise) at this temperature. After the addition, reaction mass was slowly warmed to RT and at RT the reaction mass was stirred for 12hduring while the reaction was monitored by TLC. After the completion of the reaction , 10 mL of ethylacetate was added and the
doi:10.1039/c3ra40972d
fatcat:cs4m37bexfebranvz6vxacvif4