Tetrafluoroboric acid → HCID 89545229, compound

Participants

Reaction Steps

Following the same procedure in step 1 of Example 344 using 5-bromo-1,3-benzothiazole (500 mg, 2.34 mmol, 1.00 equiv), cyclopropylboronic acid (300 mg, 3.49 mmol, 1.50 equiv), potassium phosphate (2.2 g, 10.36 mmol, 4.50 equiv), palladium acetate (51.6 mg, 0.10 equiv), and PCy3.HBF4 (0.17 g, 0.20 equiv) in a mixture of toluene (12 mL) and water (1.2 mL). The crude product was purified by flash chromatography on silica gel, eluting with petroleum ether/ethyl acetate (10:1-5:1) to provide the title compound as a purple oil. MS m/z [M+H]+ (ESI): 176.

Provenance & Evidence