With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.4923-87-9,5-Bromobenzothiophene,as a common compound, the synthetic route is as follows.
5-bromobenzo[b]thiophene (3.0 g, 14.08 mmol) and 4-hydroxyphenylboronic acid (2.91 g, 21.11 mmol) were dissolved in DME 40 mL. Water 10 mL was added thereto. Pd(dbpf)Cl2 (459 mg, 0.70 mmol) and Cs2CO3 (13.68 g, 42.24 mmol) were added thereto, and refluxed with heating at 90 C for a day. The reaction mixture was filtered through Celite. The obtained filtrate was extracted with EtOAc three times, dried over MgSO4, and then concentrated under reduced pressure. The obtained concentrate was purified by silica gel column chromatography (15-20 % EtOAc/hexane) to yield the title compound as white solid (2.30 g, 72%).
4923-87-9, The synthetic route of 4923-87-9 has been constantly updated, and we look forward to future research findings.
Reference£º
Patent; CHONG KUN DANG PHARMACEUTICAL CORP.; LEE, ChangSik; JANG, TaegSu; CHOI, DaeKyu; KO, MoonSung; KIM, DoHoon; KIM, SoYoung; MIN, JaeKi; KIM, WooSik; LIM, YoungTae; WO2013/187646; (2013); A1;,
Benzothiophene – Wikipedia
Benzothiophene | C8H6S – PubChem