1-Methylimidazole → HCID 10183987, compound

Participants

Reaction Conditions

Reaction Steps

BuLi (2.9 ml;0.0046 mol) was added dropwise at −70° C. to a solution of 1-methyl-1H-imidazole (0.0046 mol) in THF (7 ml) under N2 flow. The mixture was stirred at −70° C. for 15 min. Chlorotriethyl-silane (0.0048 mol) was added. The mixture was stirred at −70° C. for 15 min. n BuLi (2.6 ml;0.0041 mol) was added dropwise. The mixture was stirred at −70° C. for 15 min. A solution of intermediate (4) (0.00264 mol) obtained in Example A2, in THF (20 ml) was added dropwise at −70° C. The mixture was stirred at −70° C. for 1 hour, poured out into ice water and extracted with EtOAc. The organic layer was separated, dried (MgSO4), filtered, and the solvent was evaporated. The residue (2.1 g) was purified by column chromatography over silica gel (eluent: CH2Cl2/CH3OH/NH4OH; 95/5/0.2; 15–40 μm). The pure fractions were collected and the solvent was evaporated. The residue (0.59 g) was crystallized from diethylether. The precipitate was filtered off and dried, yielding 0.49 g (40%) of 4-(3-chlorophenyl)-α-(4-chlorophenyl)-2-methyl-α-(1-methyl-1H-imidazol-5-yl)-6-quinazolinemethanol, mp. 223° C.

Provenance & Evidence