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ChemicalBook CAS DataBase List 5-(Methoxycarbonyl)-1H-indole-2-carboxylicacid
681288-76-6

5-(Methoxycarbonyl)-1H-indole-2-carboxylicacid synthesis

3synthesis methods
-

Yield:681288-76-6 91%

Reaction Conditions:

with hydrogen;palladium 10% on activated carbon at 25; under 750.075 Torr; for 1 h;

Steps:



Benzyl 5-methoxycarbonylindole-2-carboxylate (9.8 mg, 0.032 mmol) and 10% Pd/C (2.5 mg) in 640 μL THF were stirred under H2 (1 bar) for 1 h at 25° C., then filtered over Celite. The catalyst was washed with THF (1 mL) and the filtrate was evaporated to afford 5-methoxycarbonyl-indole-2-carboxylic acid 192 (6.3 mg, 91%) as an off-white solid: mp 281° C. (dec.); ESI (positive) m/z 220 (M+H+, C11H10NO4); ESI (negative) m/z 218 (M-H-, C11H8NO4).

References:

US2005/26987,2005,A1 Location in patent:Page 28