Adding a certain compound to certain chemical reactions, such as: 1677-48-1, name is 5,6-Dichloroindoline-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 1677-48-1, category: indolines-derivatives
General procedure: A mixture of 4-(chlorobenzyloxy)benzoylhydrazines (0.01 mol) and 4,5-dichloroindolin-2,3-diones (0.01 mol) in ethanol (70 ml) containing 3-4 drops of glacial acetic acid was refluxed for 1-2 hr and left overnight at room temperature. The solid product so obtained was filtered, washed with methanol and recrystallised from aq. DMF. Compounds 1b-5b were synthesized using same method and gave satisfactory analysis for C, H and N.
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Reference:
Article; Harrison, Darwin Anil; Rastogi, Nisheeth; Rahman, Masihur; Indian Journal of Heterocyclic Chemistry; vol. 23; 4; (2014); p. 411 – 418;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem