Dimethyl Sulfoxide → HCID 57827767, compound

Temperature

-70 °C

Dimethyl sulfoxide (0.612 mL) was added dropwise to a solution of oxalyl chloride (0.652 mL) in dichloromethane (15 mL) at −55° C., and the mixture was stirred at −70° C. for 10 minutes. A solution of 3-methoxy-5-hexenol (Tetrahedron, 61, 3183-3194 (2005)) (660 mg) in dichloromethane (5 mL) was added dropwise to the solution at −60° C., and the mixture was stirred at −60° C. for 15 minutes. Triethylamine (4.95 mL) was added dropwise to the solution at −60° C., and the reaction solution was stirred at −60° C. to room temperature for 30 minutes. The reaction solution was poured into water, followed by extraction with dichloromethane. The extract was washed with a saturated sodium chloride solution and then dried over anhydrous magnesium sulfate. The drying agent was removed by filtration and the filtrate was concentrated under reduced pressure to obtain the title compound containing dichloromethane and triethylamine (3.0 g).

1. stirringthe mixture was stirred at −60° C. for 15 minutes
2. stirringthe reaction solution was stirred at −60° C. to room temperature for 30 minutes
3. extractionfollowed by extraction with dichloromethane
4. washThe extract was washed with a saturated sodium chloride solution
5. dry with materialdried over anhydrous magnesium sulfate
6. customThe drying agent was removed by filtration
7. concentrationthe filtrate was concentrated under reduced pressure

ORD record

ord-0f19099abffa4f2bb4df83f8b9d63e8f

Source dataset

uspto-grants-2012_04

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08158620B2