[CH:1]([O:4][C:5]1[CH:6]=[C:7]([CH:10]=[CH:11][CH:12]=1)[CH:8]=[O:9])([CH3:3])[CH3:2].[BH4-].[Na+].C(Cl)Cl>CO>[CH:1]([O:4][C:5]1[CH:6]=[C:7]([CH:10]=[CH:11][CH:12]=1)[CH2:8][OH:9])([CH3:3])[CH3:2]To a 1 molar solution of 3-isopropoxy benzaldehyde (102 g, 0.621 moles) in methanol (620 mL) cooled to 0° was added (slowly) sodium borohydride powder (25.8 g, 0.683 moles)-dissolved in a minimum of methylene chloride and passed through a plug of silica gel washing with more methylene chloride until the silica gel was free of the product. The eluent was stripped to an oil and pumped on high vacuum overnight.
Wird geladen…