Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 99365-40-9, name is 6-Bromoindolin-2-one, A new synthetic method of this compound is introduced below., 99365-40-9
Sodium hydride (4.53 g, 94.3 mmol, Eq: 4) and dry tetrahydrofuran (20 ml) were mixed under argon. A suspension of 6-bromoindolin-2-one (5 g, 23.6 mmol, Eq: 1.00) in dry tetrahydrofuran (50 ml) was added in portions. The mixture was stirred at room temperature for 20 min. Then iodomethane (13.4 g, 5.87 ml, 94.3 mmol, Eq: 4) was added dropwise at 23-26 C. The light brown suspension was stirred at room temperature overnight. The reaction mixture was carefully quenched with 10 ml of saturated ammonium chloride. The mixture was diluted with 200 ml of ethyl acetate, 100 ml of water and 50 ml of saturated sodium bicarbonate. The mixture was extracted with 100 ml of ethyl acetate (2x) and the organic layers were washed with 50 ml of saturated sodium bicarbonate. The combined organic layers were dried with sodium sulfate, filtered and concentrated in vacuo. The residue was purified by chromatography on silica gel to afford the desired product a white solid (4.16g, 69 %). MS (m/z) = 254.4/256.4 [M + H]+.
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Patent; F. HOFFMANN-LA ROCHE AG; HOFFMANN-LA ROCHE INC.; GAUFRETEAU, Delphine; KOLCZEWSKI, Sabine; PLANCHER, Jean-Marc; STOLL, Theodor; (99 pag.)WO2017/76842; (2017); A1;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem