Tetrahydrofuran → HCID 178500291, compound

Participants

Reaction Steps

To a THF (300 mL) solution of compound 31 (50.8 g, 0.12 mol) was added carbonyldiimidazole (21.4 g, 0.132 mol). The resultant suspension was stirred for 1 h at room temperature. Methanol (75 mL) was added, followed by an additional stirring of the solution for 19 h. The solution was concentrated, and the residue was partitioned between water and ether. The organic phase was dried (MgSO4) and concentrated. The residue was purified by silica gel chromatography (Et2O:hexane/1:1) to afford 22.8 g (42%) of the title compound.

Provenance & Evidence