Adding a certain compound to certain chemical reactions, such as: 7699-18-5, name is 5-Methoxyindolin-2-one, 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 7699-18-5, name: 5-Methoxyindolin-2-one
General procedure: To a solution of the corresponding substituted oxindole (5, 40 mmol) and triethylamine (88 mmol) in THF (140 mL) was added phenyl chloroformate (13.76 g, 11.0 mL, 88 mmol) dropwise. The temperature was kept below 30 C during the addition. After stirring for 30 min at room temperature, the solvent was evaporated. Water (40 mL) was added to the residue and the mixture was stirred for 2 h at 0-5 C. The crystalline product was filtered and recrystallized from ethyl acetate to give compounds 6.
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Reference:
Article; Porcs-Makkay, Marta; Volk, Balazs; Kokai, Eszter; Simig, Gyula; Tetrahedron; vol. 68; 5; (2012); p. 1427 – 1435;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem