763114-25-6, 2-Fluoro-5-((3-oxoisobenzofuran-1(3H)-ylidene)methyl)benzonitrile is a benzofuran compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
763114-25-6, Step 50.2: Synthesis of 2-Fluoro-5-[(4-oxo-3H-phthalazin-l-yl)methyl]benzoic Acid (5.2).[0242] As such, to a stirred suspension of 50.1 (-10 mmol) in water (20 mL) was added aqueous NaOH (10 N, 5 mL). The reaction was subsequently heated to 100 C for 1 h. After the reaction mixture was cooled to roughly 70 C and hydrazine hydrate (5.0 mL, 100 mmol) was added. The mixture was stirred at 70 C for 24 h. The reaction was cooled room temperature and acidified with HC1 (8 N, ca. 80 mL) to pH 4. After reaction was again cooled to room temperature, the solid was collected with filtration, washed with water (10 mL), ether (3 x 10 mL) and was dried to produce compound 50.2 (2.41 g) as a white solid. MS (ESI+) m/z = 299 (M+H).
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Reference£º
Patent; NEWGEN THERAPEUTICS, INC.; SHEN, Wang; MAUNG, Jack; ZHANG, Aimin; ZHENG, Xiaoling; WO2012/166983; (2012); A1;,
Benzofuran – Wikipedia
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