Catalytic Addition of Indole-2-Carboxylic Acid to 1-Hexyne
Molbank 2020, 2020(3), M1145; https://doi.org/10.3390/M1145 (registering DOI) - 03 Jul 2020
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The synthesis of two novel enol esters, namely hex-1-en-2-yl indole-2-carboxylate and hex-1-en-2-yl 1-(hex-1-en-2-yl)-indole-2-carboxylate, is presented. Both compounds were generated by addition of indole-2-carboxylic acid to 1-hexyne employing [RuCl2
)] and [AuCl(PPh3
, respectively, as catalysts.