Adding a certain compound to certain chemical reactions, such as: 39603-24-2, name is 5,7-Dimethylindoline-2,3-dione, belongs to indolines-derivatives compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 39603-24-2, Application In Synthesis of 5,7-Dimethylindoline-2,3-dione
General procedure: To a mixture of isatin 1a (14.7 mg, 0.1 mmol), H2O (5.4 muL, 0.3 mmol), quinine-derived amine 3 (3.3 mg, 0.01 mmol), and benzoic acid (3.66 mg, 0.03 mmol) in THF (1.0 mL) at 5 C was added acetaldehyde (22.0 mg, 0.5 mmol). After the reaction mixture was stirred for 15 h at this temperature, it was cooled to 0 C. Methanol (2 mL) and NaBH4 (20.0 mg, 0.5 mmol) were then added sequentially. The resulting reaction mixture was stirred for an additional 30 min at 0 C. Water (5.0 mL) was added to quench the reaction. The reaction mixture was extracted with ethyl acetate (10 mL x 3). The combined organic phases were dried over Na2SO4. After filtration and removal of the solvent under reduced pressure, the crude product was purified by column chromatography on silica gel (ethyl acetate/hexane 1:2 to 2:1) to give the pure product 2a.
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Reference:
Article; Guo, Qunsheng; Zhao, John Cong-Gui; Tetrahedron Letters; vol. 53; 14; (2012); p. 1768 – 1771;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem