1,2-Diaminocyclohexane, trans- → HCID 58072459, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 1-(2-fluoro-4-iodophenyl)-5-methoxy-3-(1-phenyl-1H-pyrazol-5-yl)pyridazin-4(1H)-one (244 mg, 0.5 mmol), azetidin-2-one (42.6 mg, 0.6 mmol), K3PO4 (212 mg, 1.0 mmol), trans-1,2-diaminocyclohexane (0.012 mL, 0.1 mmol) and CuI (9.5 mg, 0.05 mmol) in 1,4-dioxane (2 mL) was heated to 110° C. for 18 h under Ar. To the mixture was added azetidin-2-one (42.6 mg, 0.6 mmol). The mixture was heated to 110° C. for 24 h under Ar. The mixture was diluted with NaHCO3 aqueous solution, extracted with AcOEt, dried over Na2SO4, filtered, concentrated in vacuo, purified by column chromatography on basic silica gel (hexane/AcOEt=50/50 to 0/100) and recrystallized with EtOH/hexane to yield the title compound (95 mg, 44% yield) as a pale yellow solid: mp 189-194° C. 1H NMR (DMSO-d6, 300 MHz): δ ppm 3.15 (2H, t, J=4.5 Hz), 3.68 (2H, t, J=4.5 Hz), 3.77 (3H, s), 6.96 (1H, d, J=1.9 Hz), 7.06 (1H, t, J=8.7 Hz), 7.18 (1H, dd, J=8.7, 1.5 Hz), 7.29-7.48 (6H, m), 7.78 (1H, d, J=1.9 Hz), 8.45 (1H, d, J=1.9 Hz). Anal. Calcd for C23H18FN5O3: C, 64.03; H, 4.21; N, 16.23. Found: C, 63.75; H, 4.16; N, 16.22.

Provenance & Evidence