SCHEDULED MAINTENANCE
Methyl indol-2-ylpropiolate 1 is synthesized by using a catalyst system of PPh3–CuI in the presence of K2CO3 as base. The procedure appears convenient if compared with Pd-catalyzed cross-coupling reactions. The interest is increased by the use of an alk-1-yne containing an electron-withdrawing group.
D. Passarella, G. Lesma, M. Deleo, M. Martinelli and A. Silvani, J. Chem. Soc., Perkin Trans. 1, 1999, 2669 DOI: 10.1039/A906023E
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