Methanol → HCID 71544871, compound

Participants

Reaction Steps

6-(3-Bromopropyl)-9-methoxy-3-nitro-5H-indeno[1,2-c]isoquinoline-5,11(6H)-dione (80, 1.00 g, 2.26 mmol) was dissolved in tetrahydrofuran (60 mL), methanol (20 mL), and ethyl acetate (30 mL) and transferred to a Parr shaker flask. The reaction vessel was purged with argon for 10 min and then palladium-charcoal (10%, 20 mg) was added. The reaction mixture was shaken for 24 h under an atmosphere of hydrogen (60 psi). The solid was filtered off, the solvent removed under vacuum, and the compound purified by silica gel column chromatography, eluting with ethyl acetate. The product was obtained as a brown solid (0.55 g, 59%): mp 330° C. (dec). IR (Film) 3367, 1696, 1655, 1506, 1480, 1431, 1293, 1229, 1016, 834, 787, 665 cm−1; 1H NMR (300 MHz, DMSO-d6) δ 8.35 (d, J=8.6 Hz, 1H), 7.67-7.62 (m, 2H), 7.06 (d, J=2.5 Hz, 1H), 7.0.1-6.94 (m, 2H), 4.51 (t, J=6.0 Hz, 2H), 3.84 (s, 3H), 3.75 (dd, J=7.5 Hz, J=6.6 Hz, 2H), 2.30 (br p, J=8.5 Hz, 2H); EIMS m/z (rel intensity) 413 (M+, 46), 333 ([M-HBr)]+, 100); HRESIMS m/z calcd for C20H17N2O3Br 413.0501 (MH+). found, 413.0505 (MH+).

Provenance & Evidence