Research on new synthetic routes about 19155-24-9

According to the analysis of related databases, 19155-24-9, the application of this compound in the production field has become more and more popular.

Related Products of 19155-24-9, In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 19155-24-9 as follows.

5-bromo-1,3-dihydro-3,3-dimethyl-2H-indol-2-one 3,3-dimethyl-indol-2-one (0.65 g, 4.03 mmol) and sodium acetate (0.33 g, 4.07 mmol) were stirred in acetic acid (5 cm3) then bromine (0.66 g, 4.13 mmol) in acetic acid (5 cm3) was added drop-wise to the reaction mixture. The reaction was stirred for 50 min., and then poured into water. The mixture was basified with sodium carbonate and then extracted with ethyl acetate (*3), dried (MgSO4), filtered, and evaporated to the title compound (0.89 g, 92percent) 1H NMR (DMSO-d6) delta1.21 (s, 6H), 6.76 (d, 1H, J=8.22 Hz), 7.29 (dd, 1H, J=2.12 Hz, 8.23 Hz), 7.49 (d, 1H, J=2.03 Hz), 10.4 (s, 1H).

According to the analysis of related databases, 19155-24-9, the application of this compound in the production field has become more and more popular.

Reference:
Patent; American Home Products Corporation; Ligand Pharmaceuticals, Inc.; US6391907; (2002); B1;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem