175913-27-6Relevant articles and documents
Synthesis method of 4-fluoro-7-nitroindole or derivatives of 4-fluoro-7-nitroindole
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, (2021/02/06)
The invention is applicable to the technical field of chemical synthesis, and provides a synthesis method of 4-fluoro-7-nitroindole or derivatives thereof, which comprises the following steps: reacting 4-fluoroindole or derivatives thereof, glacial acetic acid and sodium cyanoborohydride to obtain 4-fluoroindoline or derivatives thereof, reacting the 4-fluoroindoline or derivatives thereof, glacial acetic acid and acetic anhydride to obtain N-acetyl-4-fluoroindoline or a derivative thereof, carrying out nitration reaction on N-acetyl-4-fluoroindoline or a derivative thereof to obtain N-acetyl4-fluoro-7-nitroindoline or a derivative thereof, reacting N-acetyl-4-fluorine 7-nitroindoline or derivatives thereof, sodium hydroxide and 1, 4-dioxane to obtain 4-fluoro-7-nitroindoline or derivatives thereof, and reacting 4-fluoro-7-nitroindoline or derivatives thereof, trichloromethane and manganese dioxide to obtain 4-fluoro-7-nitroindoline or derivatives thereof. The synthesis method provided by the invention is mild in reaction condition and easy to operate.