Tetrahydrofuran → HCID 10666472, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 2-bromo-5-benzyloxy benzaldehyde dimethylacetal (Tet. Lett., 22, 5027 (1981)) (130 g) in THF (2.0 L), cooled to -78° C., was added dropwise a solution of n-BuLi (210 ml, 1.91 M) in hexane. After 15 min., a solution of benzalde48 mL) in THF (50 ml) was added dropwise. The cooling bath was removed, then the reaction mixture was warmed slowly (40 min.) to -10° C. and quenched with a saturated NH4Cl solution. The reaction mixture was diluted with Et2O (2.0 L). The organic phase decanted, washed with H2O (3×), brine, dried over MgSO4 and the solvents evaporated. The residue was chromatographed on silica gel (hexane/EtOAc 95:5 to 85:15) to give the title product as a foam.

Provenance & Evidence