6940-49-4, 3-Bromophthalide is a benzofuran compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
(1) Preparation of N,N,N-triethyl-3-oxo-1,3-dihydro-1-isobenzofuranylammonium bromide STR11 A mixture of 8.52 g (40 mmol) of 3-bromo-1,3-dihydro-1-isobenzofuranone 1 and 27.87 ml (200 mmol) of triethylamine in 85 ml of tetrahydrofuran is allowed to react at room temperature for 96 hours, and the precipitating crystals are filtered and washed with dichloromethane to give 11.04 g of the titled compound 2. (Yield: 88%) m.p. 173-174 C. NMR: deltad6 DMSO 1.25 (t, J=8.0 Hz, 9H), 3.58 (q, J=8.0 Hz, 6H), 7.16 (s, 1H), 7.80-8.23 (m, 4H). Elemental analysis (%) Calcd: C, 53.51; H, 6.42; N, 4.46 (for C14 H20 NO2 Br). Found: C, 53.07; H, 6.42; N, 4.52.
6940-49-4, The synthetic route of 6940-49-4 has been constantly updated, and we look forward to future research findings.