4382-54-1, 5-Methoxyindole-2-carboxylic acid is a indole-building-block compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
(178-1) Under nitrogen atmosphere, to a solution of 5-methoxyindole-2-carboxylic acid (1.00 g) in Et2O (40 mL) was added LiAlH4 (280 mg) at 0 C., and the mixture was stirred under reflux for 3 hours. The mixture was treated with ethyl acetate, diluted with an aqueous hydrochloric acid solution, and extracted with ethyl acetate. The mixture was concentrated to give a crude alcohol compound (840 mg, 91%), which was dissolved in THF (10 mL), and stirred with MnO2 (4.20 g) at room temperature for 5 hours. The mixture was filtered on celite, and the filtrate was concentrated, and the residue was purified by silica gel column chromatography to give 5-methoxyindole-2-carbaldehyde (300 mg, 36%). 1H NMR (CDCl3, 400 MHz) delta 9.80 (s, 1H), 8.90 (brs, 1H), 7.34 (brd, 1H, J=8.9 Hz), 7.19 (dd, 1H, J=2.1 and 0.8 Hz), 7.11 (brs, 1H), 7.08 (dd, 1H, J=8.9 and 2.1 Hz), 3.86 (s, 3H).
As the paragraph descriping shows that 4382-54-1 is playing an increasingly important role.
Reference£º
Patent; Tokunaga, Teruhisa; Hume, William Ewan; Kitoh, Makoto; Nagata, Ryu; US2003/181496; (2003); A1;,
Indole alkaloid derivatives as building blocks of natural products from?Bacillus thuringiensis?and?Bacillus velezensis?and their antibacterial and antifungal activity study
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles