1: 59 percent / lithium aluminium hydride / diethyl ether 2: 62 percent / pyridine 3: 80 percent / lithium bromide / acetone / 24 h / Ambient temperature 4: magnesium (from magnesium chloride and potassium metal, 3-(4-methoxyphenyl)propanal / tetrahydrofuran 5: 74 percent / pyridinium chlorochromate / CH2Cl2 / 4.5 h View Scheme

1: 59 percent / lithium aluminium hydride / diethyl ether 2: 62 percent / pyridine 3: 80 percent / lithium bromide / acetone / 24 h / Ambient temperature 4: magnesium (from magnesium chloride and potassium metal, 3-(4-methoxyphenyl)propanal / tetrahydrofuran View Scheme

1: 59 percent / lithium aluminium hydride / diethyl ether 2: 62 percent / pyridine 3: 80 percent / lithium bromide / acetone / 24 h / Ambient temperature 4: magnesium (from magnesium chloride and potassium metal, 3-(4-methoxyphenyl)propanal / tetrahydrofuran 5: 74 percent / pyridinium chlorochromate / CH2Cl2 / 4.5 h 6: 54 percent / hydrogen chloride / CH2Cl2 / 0.5 h / -25 °C View Scheme