Potassium Carbonate → Tert-butyl((4-ethynylbenzyl)oxy)dimethylsilane

Under argon condition, tert-butyldimethyl((4-((trimethylsilyl)-ethynyl)benzyl)oxy)silane (383 mg, 2.40 mmol) and potassium carbonate (332 mg, 2.40 mmol) were dissolved in 4 mL of methanol, and then stirred for 2 hours at room temperature. Upon completion of the reaction, the reaction was terminated by adding 10 mL of aqueous saturated ammonium chloride solution. The reaction mixture was extracted with ethyl acetate (5 mL×4) and the organic layer thus obtained was treated with anhydrous magnesium sulfate to remove water. The precipitate was filtered out and the resulting solution was concentrated by distillation under reduced pressure, and purified by column chromatography to obtain 280 mg (1.14 mmol, 95%) of the desired compound.

1. customUpon completion of the reaction
2. customthe reaction was terminated
3. additionby adding 10 mL of aqueous saturated ammonium chloride solution
4. extractionThe reaction mixture was extracted with ethyl acetate (5 mL×4)
5. customthe organic layer thus obtained
6. customto remove water
7. filtrationThe precipitate was filtered out
8. concentrationthe resulting solution was concentrated by distillation under reduced pressure
9. custompurified by column chromatography

ORDレコード

ord-1a1fefe3f9d94d0fbe06f38aced62666

出典データセット

uspto-grants-2014_08

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US08809012B2