Methyl chloroglyoxylate → methyl (6-imidazol-1-yl-1-methyl-1H-indol-3-yl)glyoxylate

참여 물질

반응 조건

반응 단계

6-Imidazol-1-yl-1-methyl-1H-indole (0.90 g, 4.56 mmol ) was dissolved in CH2Cl2 (2 mL) and cooled at 0° C. Methyl chlorooxoacetate (1.3 mL, 14 mmol) was added. Stirring was continued for 2 h at 0° C. and more methyl chlorooxoacetate (0.4 mL, 4.3 mmol) was added. After an additional 2 h, the solvent was removed. The residual solid was taken up in ether, filtered and washed well with ether to give crude methyl (6-imidazol-1-yl-1-methyl-1H-indol-3-yl)glyoxylate (1.50 g).

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