The important role of 55512-82-8

With the complex challenges of chemical substances, we look forward to future research findings about 3-Bromoisothiazole

Name is 3-Bromoisothiazole, as a common heterocyclic compound, it belongs to isothiazole compound, and cas is 55512-82-8, its synthesis route is as follows.,55512-82-8

Intermediate I-1 (15 mg, 0.045 mmol) and 3-bromoisothiazole (10.98 mg, 0.067 mmol) were dissolved in DMF (446 muL). PdCl2(dppf)-CH2Cl2 (2.187 mg, 2.68 mumol) was added and the reaction mixture was degassed by bubbling with argon for 15 minutes. Sodium carbonate (2 M, 26.8 muL, 0.054 mmol) was added and the reaction mixture was degassed for 5 minutes, then sealed and heated to 90 ¡ãC in the microwave for 30 minutes. The reaction mixture was diluted with DMF, filtered, and purified by preparative HPLC (Method D, 35 to 80percent B in 10 minutes) to give Example 5 (5.0 mg, 0.017 mmol, 37.2percent): 1H NMR (500MHz, METHANOL-d4) delta 8.89 (d, J=4.7 Hz, 1H), 8.59 (s, 1H), 8.13 (d, J=1.9 Hz, 1H), 8.10 (d, J=4.7 Hz, 1H), 7.84-7.52 (m, 2H), 2.64 (s, 3H); LC^MS: Method H, RT = 1.08 min, MS (ESI) m/z: 293.9 (M+H)+; Analytical HPLC Method B: 97.4percent purity

With the complex challenges of chemical substances, we look forward to future research findings about 3-Bromoisothiazole

Reference£º
Patent; BRISTOL-MYERS SQUIBB COMPANY; RICHTER, Jeremy M.; ZHANG, Xiaojun; PRIESTLEY, Eldon Scott; (111 pag.)WO2018/13772; (2018); A1;,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com