New learning discoveries about 4923-87-9

4923-87-9 5-Bromobenzothiophene 2776578, abenzothiophene compound, is more and more widely used in various.

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.

Step C: Isoquinolin-4-ylboronic acid (2.4 g, 14.0 mmol) was added to a solution of the product from Step B (2.0 g, 9.4 mmol) and triphenylphosphine (0.5 g, 1.9 mmol) in 1,2-dimethoxyethane (50 ml). The suspension was degassed with nitrogen. Palladium acetate (0.2 g, 0.9 mmol) was added and the batch was stirred at room temperature for 20 minutes. Aqueous sodium carbonate (11.3 ml, 2 M solution) was added and the suspension was degassed again with nitrogen. The mixture was stirred at 85 C. for 3.5 hours, cooled, diluted with water and extracted with ethyl acetate twice. The combined organic extracts were dried over anhydrous sodium sulfate, concentrated under vacuum and purified by chromatography (5:1 heptane/ethyl acetate) to give the desired isoquinoline (1.8 g, 74%, 98% AUC HPLC): 1H NMR (300 MHz, CDCl3) delta 9.30s, 1H), 8.59s, 1H), 7.95-8.07 m, 4H), 7.43-7.72 (mu, 5H).

4923-87-9 5-Bromobenzothiophene 2776578, abenzothiophene compound, is more and more widely used in various.

Reference£º
Patent; Molino, Bruce F.; Liu, Shuang; Guzzo, Peter R.; Beck, James P.; US2006/52378; (2006); A1;,
Benzothiophene – Wikipedia
Benzothiophene | C8H6S – PubChem