Imidazole → HCID 68715481, compound

To a stirred solution of triphenylphosphine (4.91 g, 18.7 mmol) and imidazole (1.28 g, 18.7 mmol) in dichloromethane (40 ml) under an argon atmosphere was added slowly iodine (4.75 g, 18.7 mmol) and [1-(4-chlorophenyl)-cyclopropyl]-methanol (3.07 g, 15.6 mmol). The mixture was stirred for 2 hours at room temperature, then dichloromethane (100 ml) was added and mixture was extracted with saturated sodium thiosulfate solution (100 ml) and hydrochloric acid (1 N, 50 ml). The organic layer was dried over MgSO4 and evaporated. The residue was suspended in ether and filtered to remove insoluble triphenylphosphine oxide. The ether was evaporated and the residue was purified by column chromatography (SiO2, heptane/EtOAc=9:1) to yield a colourless oil, (2.50 g, 52%); MS (EI): 306.0 (M+.); 179.0 ((M−I)+.).

1. extractionmixture was extracted with saturated sodium thiosulfate solution (100 ml) and hydrochloric acid (1 N, 50 ml)
2. dry with materialThe organic layer was dried over MgSO4
3. customevaporated
4. filtrationfiltered
5. customto remove insoluble triphenylphosphine oxide
6. customThe ether was evaporated
7. customthe residue was purified by column chromatography (SiO2, heptane/EtOAc=9:1)
8. customto yield a colourless oil, (2.50 g, 52%)

ORD record

ord-034b036de13647259cdca56e1f075db6

Source dataset

uspto-grants-2013_12

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08604061B2