[OH:1][C:2]1[CH:9]=[CH:8][C:5]([CH:6]=[O:7])=[CH:4][CH:3]=1.C(N(C(C)C)C(C)C)C.[CH3:19][O:20][CH2:21][CH2:22][O:23][CH2:24]Cl>C(Cl)Cl>[CH3:19][O:20][CH2:21][CH2:22][O:23][CH2:24][O:1][C:2]1[CH:9]=[CH:8][C:5]([CH:6]=[O:7])=[CH:4][CH:3]=10.16 mol of 4-hydroxybenzaldehyde and 0.32 mol of ethyldiisopropylamine are dissolved in 250 ml of CH2Cl2 (anhydrous), and 0.24 mol of 2-methoxyethoxymethyl chloride are then added dropwise at room temperature. The mixture is stirred at this temperature for 2 hours, then the solvent is removed in vacuo. The residue is taken up using 200 ml of EA and the solution is washed once each with 200 ml of Na2CO3 solution and 200 ml of NaH2PO4 solution, dried over Na2 SO4 and the solvent removed in vacuo. 34 g of a light brown oil are obtained, which is reacted further without purification.
Wird geladen…
