Triphenylmethane → HCID 21999136, compound

A solution of n-butyl lithium (1.02 ml) was added dropwise to a solution of 304 mg of 1,1-(ethylenedioxy)-2-methyl-3-(phenylsulfonyl)-cyclohexane and 4 mg of triphenylmethane in 5 ml of THF at −78° C. under an argon stream. After stirring for 10 minutes, the reaction was effected at room temperature for 1 hour. HMPA (1 ml) was added to the reaction mixture. It was then recooled to −78° C., followed by the dropwise addition of a solution of 90 mg of 10-bromo-1-decanol in 2 ml of THF. After reaction at −20° C. for 2 hours, the reaction mixture was poured into a saturated solution of ammonium chloride. The resulting mixture was extracted with ethyl ether. The organic layer was washed with water and saturated saline and dried over magnesium sulfate. The solvent was then distilled off under reduced pressure. The residue was purified by chromatography on a silica gel column while using hexane-ethyl acetate, whereby 1,2-(ethylenedioxy)-3-(10-hydroxydecyl)-2-methyl-3-(phenylsulfonyl)-cyclohexane was obtained in the form of a colorless oil. Yield: 92%

1. waitthe reaction was effected at room temperature for 1 hour
2. customwas then recooled to −78° C.
3. customAfter reaction at −20° C. for 2 hours
4. extractionThe resulting mixture was extracted with ethyl ether
5. washThe organic layer was washed with water and saturated saline
6. dry with materialdried over magnesium sulfate
7. distillationThe solvent was then distilled off under reduced pressure
8. customThe residue was purified by chromatography on a silica gel column

ORD record

ord-477c175bfe4743ef928fda111a32db86

Source dataset

uspto-grants-2001_05

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US06228893B1