1-Methylpiperazine → HCID 69226317, compound

Participants

Reaction Steps

A mixture of Example 41C, 1-methyl-piperazine (0.5 mL) and 2-methoxy-ethanol (1 mL) was heated at 110° C. for 60 hours, cooled, concentrated under reduced pressure and chromatographed on silica gel eluting with a gradient of 2, 3.5 and 5% (9:1 MeOH: saturated aqueous NH4OH) to provide the title compound. 1H NMR (CDCl3) δ 2.34 (s, 3H), 2.52 (t, J=4.75 Hz, 4H), 3.83 (t, J=4.75 Hz, 4H), 4.61 (s, 2H), 5.06 (s, 2H), 7.12 (m, 1H), 7.34-7.44 (m, 2H), 8.05 (m, 1H); MS (M+H)+ m/z 298.

Provenance & Evidence