Tetrahydrofuran → HCID 178444053, compound

Participants

Reaction Steps

To a stirred solution of 2-(4-(heptyloxy)benzyl)-1H-benzo[d]imidazole-5-carbonitrile INT-46 (1.22 g, 3.51 mmol) in THF (20 mL) at 0° C. was added diisobutylaluminum hydride (12.3 mL, 12.3 mmol, 1 M in toluene). After 2 h the reaction mixture was poured onto Rochelle's salt (7.91 g, 28.0 mmol) in water (100 mL) and EA (50 mL) and stirred for 1 h. The layers were split and the aqueous layer was further extracted with EA (2×30 mL). The combined organics were washed with brine (20 mL) dried over MgSO4 and evaporated. The crude material was purified by chromatography (EA/isohexanes) to afford 571 mg (46%) of 2-(4-(heptyloxy)benzyl)-1H-benzo[d]imidazole-5-carbaldehyde INT-47 as a brown oil. LCMS-ESI (m/z) calculated for C22H26N2O2: 350; found 351 [M+H]−, tR=2.34 min (Method 5).

Provenance & Evidence