1-methyl-3-(4-nitro-phenylmethyl)-1H-indole-5-carboxylic acid methyl ester → 3-(4-amino-benzyl)-1-methyl-1H-indole-5-carboxylic acid methyl ester

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Reaction Steps

A mixture of 1-methyl-3-(4-nitro-phenylmethyl)-1H-indole-5-carboxylic acid methyl ester (0.23 g, 0.71 mmol), Pd (10% on carbon, 30 mg) and methanol (5 mL) was stirred under a hydrogen atmosphere (ballon) for 6 hr. The catalyst was removed by filtration and the solvents removed in vacuo to provide of 3-(4-amino-benzyl)-1-methyl-1H-indole-5-carboxylic acid methyl ester (0.19 g, 92% yield).

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