Potassium Carbonate → 5-(4-chlorobenzylthio)pyridazin-3(2H)-one

Beteiligte Stoffe

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Reaktionsschritte

A mixture of K2CO3 (65.4 mg, 0.47 mmol), (4-chlorophenyl)methanethiol (250 mg, 1.58 mmol), and 5-iodopyridazin-3(2H)-one (35 mg, 0.16 mmol) was stirred at 100° C. for 18 hours. After removal of the precipitate by filtration and concentration of the filtrate, the crude product was purified by prep-HPLC (C18 column/H2O:MeOH:TFA 90:10:0.1 to 10:90:0.1 gradient) to yield 5-(4-chlorobenzylthio)pyridazin-3(2H)-one 9A (21 mg, 51.6% yield). 1H NMR (400 MHz, Chloroform-D) δ ppm 11.08 (1H, br. s.), 7.57 (1H, d, J=2.01 Hz), 7.33 (4H, s), 6.57 (1H, d, J=2.01 Hz), 4.12 (2H, s).

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