반응 #9787

반응 방정식

ethyl[4-(1,1-dimethyl-2-{3-methyl-5-[4-(trifluoromethyl)phenyl]thien-2-yl}-2-oxoethyl)-2-methylphenoxy]acetate

intermediate 106

ethyl[4-(1,1-dimethyl-2-{3-methyl-5-[4-(trifluoromethyl)phenyl]thien-2-yl}-2-oxoethyl)-2-methylphenoxy]acetate

trifluoroacetic acid

triethylsilane

→

title compound

ethyl[4-(1,1-dimethyl-2-{3-methyl-5-[4-(trifluoromethyl)phenyl]thien-2-yl}ethyl)-2-methylphenoxy]acetate

반응 조건

후처리

1. 1
   기타The vial was then sealed
2. 2
   온도to cool to room
3. 3
   농축concentrated in vacuo
4. 4
   기타Purification by flash column chromatography
5. 5
   세척eluting cyclohexane-1% EtOAc/cyclohexane

실험 절차

To a reactivial containing ethyl[4-(1,1-dimethyl-2-{3-methyl-5-[4-(trifluoromethyl)phenyl]thien-2-yl}-2-oxoethyl)-2-methylphenoxy]acetate (intermediate 106, 36 mg) was added trifluoroacetic acid (0.22 ml) and triethylsilane (0.11 ml). The vial was then sealed and heated at 50° C. for 18 hours. The reaction was then allowed to cool to room and concentrated in vacuo. Purification by flash column chromatography eluting cyclohexane-1% EtOAc/cyclohexane yielded the title compound as a colourless oil.

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