Sodium Carbonate → HCID 58548065, compound

Participants

Reaction Steps

To a solution of 2-(3-((6-chloro-5-iodopyridazin-3-yl)oxy)azetidin-1-yl)quinoline and 2-(3-((6-chloro-4-iodopyridazin-3-yl)oxy)azetidin-1-yl)quinoline as isomeric mixture, (see PREPARATION P6.1; 521 mg, 1.2 mmol) in 1,4-dioxane (15 mL) was treated with Na2CO3 (255 mg, 2.4 mmol) in 2 mL of water as a solution, followed by additional of tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5,6-dihydropyridine-1(2H)-carboxylate (557 mg, 1.8 mmol) and Pd(dppf)Cl2 (88 mg, 0.12 mmol). The resulting mixture was heated at refluxing overnight under N2 atmosphere. The solution was filtered, and the filtrate was concentrated. The residue was purified by flash column chromatography on silica gel (20% to 70% EtOAc in petroleum ether) to give the title product (509 mg, 1.0 mmol, yield: 83%). ESI-MS (M+1): 494 calc. for C26H28ClN5O3 493.

Provenance & Evidence