2(1H)-Pyrimidinone, tetrahydro-1,3-dimethyl- → Acridinedione

Participants

Reaction Steps

Under an atmosphere of argon, 151.4 mg (2.45×10−4 mol) of mesityl-acridine-quinone 43 was dissolved in 30 mL of 0.1M SmI2 in THF. Then, 2.2 mL (18.2 mmol) of DMPU were added dropwise. The reaction mixture was refluxed for 24 hr. Filtration to remove a precipitate and evaporation of solvent yielded an orange oil, which was purified by column chromatography on silica gel with 5% MeOH in CH2Cl2 to afford 48.7 mg (45%) of acridine-quinone 44 as an orange glassy solid: 1H NMR (300 MHz, DMSO-d6, TMS) δ8.54 (d, J=8 Hz, 2H), 7.96 (t, J=7 Hz, 2H), 7.92 (d, J=7 Hz, 1H), 7.79 (d, J=8 Hz, 2H), 7.7-7.6 (m, 3H), 7.51 (t, J=8 Hz, 2H), 6.01 (s, 1H), 4.20 (t, J=6 Hz, 2H), 4.13 (t, J=7 Hz, 2H), 2.1-1.9 (m, 4H), 1.7-1.6 (m, 2H).

Provenance & Evidence