Hydrochloric Acid → (3R,3aR,6R,6aR)-6-(5-fluoro-2-nitro-phenoxy)-2,3,3a,5,6,6a-hexahydrofuro[3,2-b]furan-3-ol

Participants

Reaction Steps

2.2 ml (20.0 mmol) 2,4-difluoro-1-nitro-benzene and 2.9 g (20.0 mmol) 1,4:3,6-dianhydro-D-mannitol in 70 ml THF are cooled to −5° C. 20 ml (20.0 mml) 1M LiHMDS in THF are added dropwise and the reaction mixture is allowed to warm to RT and stirred over night. 1M HCl is added and the mixture is extracted with EtOAc. The organic phases are pooled and washed with water, dried and evaporated. The residue is purified by FC.

Provenance & Evidence