652-40-4, 4,7-Difluoroisobenzofuran-1,3-dione is a benzofuran compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
652-40-4, (3) Methyl 3-(4,7-difluoro-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-2-(2-methyl-[1,3]dioxolan-2-yl)propionate Methyl 3-(4,7-difluoro-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-2-(2-methyl-[1,3]dioxolan-2-yl)propionate was prepared (0.27 g, 31percent) in the same manner as described in the above example 5. (1) from methyl 3-amino-2-(2-methyl-[1,3]dioxolan-2-yl)propionate (0.47 g, 2.47 mmol) and 3,6-difluorophthalic anhydride (0.50 g, 2.72 mmol), and the obtained product was identified with the following NMR data. 1H NMR (CDCl3, 300 MHz) delta 7.31 (t, 2H, ph, J=5.3 Hz), 3.95 (m, 6H, acetal H, -CHCH2NPht), 3.64 (s, 3H -CO2CH3), 3.20 (m, 1H, -CHCH2NPht), 1.42 (s, 3H, CH3) 3C NMR (CDCl3, 300 MHz) delta 171.9, 163.9, 155.8, 152.2, 125.5, 121.1, 120.6, 120.1, 108.9, 65.4, 60.9, 53.8, 51.7, 37.2, 22.0, 14.5
As the paragraph descriping shows that 652-40-4 is playing an increasingly important role.
Reference£º
Patent; Korea Institute of Science and Technology; US2003/139464; (2003); A1;,
Benzofuran – Wikipedia
Benzofuran | C8H6O – PubChem