Methyl iodide → HCID 117664789, compound

Participants

Reaction Steps

Dissolve compound 8 (1.2 g, 3.4 mmol) in DMF (20 ml), add anhydrous K2CO3 (0.7 g, 5.1 mmol), MeI (0.96 g, 6.8 mmol), react at 60° C. for 2h. After completion of the reaction, cool the mixture, filter and evaporate the DMF from filtrate under reduced pressure, feed the redissolved residue solution to a silica gel column, evaporate the solvent in the eluent to obtain a colorless oil (1.12 g, 90%). 1H NMR (400 MHz, DMSO-d6): 1.62 (s, 3H), 1.71 (s, 3H), 3.23 (d, J=6.4 Hz, 2H), 3.68 (s, 3H), 3.86 (s, 3H), 3.90 (s, 3H), 5.10 (t, J=6.4 Hz, 1H), 6.98 (d, J=16.0 Hz, 1H), 7.18 (s, 1H), 7.28 (t, J=7.2 Hz, 1H), 7.30 (d, J=16.0 Hz, 1H), 7.38 (t, J=7.2 Hz, 2H), 7.53 (d, J=7.2 Hz, 2H).

Provenance & Evidence