1: 310 mg / sodium hydroxide / methanol; H2O / 1 h / 70 °C 2: 828 mg / potassium carbonate / methanol / Heating 3: 1.) lithium aluminium hydride, 2.) ethereal hydrogen chloride / 1.) ether, reflux, 1 h, 2.) methanol 4: 1.) hydrogen, 2.) ethereal hydrogen chloride / 1.) palladium-charcoal / 1.) methanol, 2.) ethanol 5: 7 mg / NAD+, ethanol, liver alcohol dehydrogenase, pea seedling diamine oxidase, phosphate buffer (pH 8), catalase / 32 h / 37 °C / further catalysts View Scheme

1: 310 mg / sodium hydroxide / methanol; H2O / 1 h / 70 °C 2: 828 mg / potassium carbonate / methanol / Heating 3: 1.) lithium aluminium hydride, 2.) ethereal hydrogen chloride / 1.) ether, reflux, 1 h, 2.) methanol View Scheme

1: 310 mg / sodium hydroxide / methanol; H2O / 1 h / 70 °C 2: 828 mg / potassium carbonate / methanol / Heating 3: 1.) lithium aluminium hydride, 2.) ethereal hydrogen chloride / 1.) ether, reflux, 1 h, 2.) methanol 4: 1.) hydrogen, 2.) ethereal hydrogen chloride / 1.) palladium-charcoal / 1.) methanol, 2.) ethanol View Scheme