641-70-3, 3-Nitrophthalic anhydride is a benzofuran compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,641-70-3
3-Nitrophthalic anhydride (22.3 g, 115 mmol) was added slowly to a well-stirred flask containing conc. NH3 (28%, 33.5 mL). After complete addition the flask was cooled to 0 C with ensuing precipitation. The precipitate was collected by filtration and suspended in water and acidified to pH 2. 217 C). 1H NMR (300 MHz, DMSO-d6) delta 8.16 (dd, J = 8.1, 1.2 Hz, 1H), 8.10 (dd, J = 7.8, 1.2 Hz, 1H), 8.01 (br s, 1H), 7.69 (dd, J = 7.8, 8.1 Hz, 1H), 7.60 (br s, 1H). 13C NMR (75 MHz, DMSO-d6) delta 166.1, 165.7, 147.2, 134.2, 133.0, 132.0, 129.6, 126.9
As the paragraph descriping shows that 641-70-3 is playing an increasingly important role.
Reference£º
Article; Hansen, Martin; Jacobsen, Stine Engesgaard; Plunkett, Shane; Liebscher, Gudrun Eckhard; McCorvy, John D.; Braeuner-Osborne, Hans; Kristensen, Jesper Langgaard; Bioorganic and Medicinal Chemistry; vol. 23; 14; (2015); p. 3933 – 3937;,
Benzofuran – Wikipedia
Benzofuran | C8H6O – PubChem