반응 #52867

반응 방정식

EtOAc

5,5-dimethyl-5,6-dihydro-8-(2-thienyl)-naphthalene-2-carboxylic acid

Compound E6

5,5-dimethyl-5,6-dihydro-8-(2-thienyl)-naphthalene-2-carboxylic acid

ethyl 4-hydroxybenzoate

1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride

→

title compound

Ethyl 4-[[(5,5-dimethyl-5,6-dihydro-8-(2-thienyl)-naphthalen-2-yl)carbonyl]oxy]-benzoate

용매

DMF

반응 조건

후처리

1. 1
   세척the solution washed with H2O, 5% HC, saturated aqueous NaCO3, and saturated aqueous NaCl
2. 2
   건조before being dried over MgSO4
3. 3
   기타Removal of the sovents under reduced pressure and column chromatography (10% EtOAc-hexanes) of the residual oil

실험 절차

A solution of 5,5-dimethyl-5,6-dihydro-8-(2-thienyl)-naphthalene-2-carboxylic acid (Compound E6, 50.0 mg, 0.177 mmol), ethyl 4-hydroxybenzoate (38.2 mg, 0.230 mmol), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (44.0 mg, 0.230 mmol), and 4-N,N-dimethylaminopyridine (28.0 mg, 0.230 mmol) in 2.0 mL DMF was stirred overnight at room temperature. EtOAc (50 mL) was added and the solution washed with H2O, 5% HC, saturated aqueous NaCO3, and saturated aqueous NaCl before being dried over MgSO4. Removal of the sovents under reduced pressure and column chromatography (10% EtOAc-hexanes) of the residual oil afforded the title compound as a a colorless solid.

출처